MALICIOUS — 2c8763b3c44cc9c0e7b33950ade30fbf49b46d5be0a5f13761bf17854f3c25f6

MALICIOUS — 2c8763b3c44cc9c0e7b33950ade30fbf49b46d5be0a5f13761bf17854f3c25f6 is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (100/100), attributed to the Lmir family. 7 of 56 detection engines flagged it, exhibiting 5 ATT&CK techniques.

Identification

SHA-256: 2c8763b3c44cc9c0e7b33950ade30fbf49b46d5be0a5f13761bf17854f3c25f6
SHA-1: 74518b529e1597d131917d886910ffdea1106544
MD5: f991a1b755b57bb948c4ab28f969650a
imphash: aae410db5a351d384de2e35faf59497e
ssdeep: 6144:AajdMJb6SqIqOq2eJCdlCgyVQr1vI5PpFuZ/vTL9+6NkaC5DbCp:92JbM2yYl9yqQ5PpiX
TLSH: T1B4486BAE462F3313D7F7C52824104AED4016F4A9217D7ACC1A13D27E82E6D3BAD711A9
Submitted as: 2c8763b3c44cc9c0e7b33950ade30fbf49b46d5be0a5f13761bf17854f3c25f6
File type: pe · Size: 365447 bytes
Verdict: malicious (100/100) · Family: Lmir

Detections (7 of 56 engines)

capa (capabilities): capability:collection/keylog
ClamAV (daily): Win.Trojan.Lmir-22
YARA: JPCERT/CC: JPCERT_HUILoader_PlugX_SideLoad
Microsoft Defender: Virus:Win32/Viking!atmnm
Emsisoft (Emergency Kit): GenPack:Generic.Delf.Lmir.CE051F6F
Trellix Stinger (McAfee): PWS-FCMH!F991A1B755B5
Kaspersky (KVRT): Trojan.Win32.Patched.rv

MITRE ATT&CK

Why this verdict

The malicious score of 100/100 is the fusion of 17 weighted signals:

ClamAV (daily) flagged Win.Trojan.Lmir-22 (rule Win.Trojan.Lmir-22) - engine signal, weight 0.90, confidence 0.95
1 behavioral detection(s) across 1 rule(s): Registry Run Key Persistence [high] (rule tl-run-key) - dynamic signal, weight 0.60, confidence 0.90
Memory forensics: 1 finding(s) attributed to the sample across 1 technique(s), e.g. RWX/private injected region in tsk_e3e2a7bbe6 (pid 3380) (rule windows.malfind.Malfind) - memory signal, weight 0.60, confidence 0.85
Microsoft Defender flagged Virus:Win32/Viking!atmnm (rule Virus:Win32/Viking!atmnm) - engine signal, weight 0.55, confidence 0.85
Emsisoft (Emergency Kit) flagged GenPack:Generic.Delf.Lmir.CE051F6F (rule GenPack:Generic.Delf.Lmir.CE051F6F) - engine signal, weight 0.55, confidence 0.85
Trellix Stinger (McAfee) flagged PWS-FCMH!F991A1B755B5 (rule PWS-FCMH!F991A1B755B5) - engine signal, weight 0.55, confidence 0.85
Kaspersky (KVRT) flagged Trojan.Win32.Patched.rv (rule Trojan.Win32.Patched.rv) - engine signal, weight 0.55, confidence 0.85
YARA: JPCERT/CC flagged JPCERT_HUILoader_PlugX_SideLoad (rule JPCERT_HUILoader_PlugX_SideLoad) - engine signal, weight 0.60, confidence 0.70
Observed at runtime: Registry Run Key Persistence (T1547.001) (rule Registry Run Key Persistence) - dynamic signal, weight 0.40, confidence 0.90
capture keystrokes (rule capture keystrokes) - capa signal, weight 0.40, confidence 0.80
Contacted 2 external host(s) and 3 HTTP request(s) at runtime - network signal, weight 0.40, confidence 0.80
capa (capabilities) flagged capability:collection/keylog (rule capability:collection/keylog) - engine signal, weight 0.35, confidence 0.70
persist via registry run key (rule persist via registry run key) - capa signal, weight 0.35, confidence 0.60
enumerate processes (rule enumerate processes) - capa signal, weight 0.20, confidence 0.60
Dropped 56 executable file(s) at runtime - dynamic signal, weight 0.20, confidence 0.60
Observed at runtime: Modify Registry (T1112) (rule Modify Registry) - dynamic signal, weight 0.12, confidence 0.90
Memory forensics: 3 finding(s) elsewhere in the guest, not attributed to this sample, e.g. process hidden from a listing (rule windows.psxview.PsXView) - memory signal, weight 0.05, confidence 0.30

Dynamic analysis (windows)

39978 behavior events · 2 ATT&CK techniques · 59 dropped files.

Dropped files

C:\Program Files\Google\Chrome\Application\151.0.7922.174\chrome_pwa_launcher.exe - 98311fd7542a81fde99574126dc83bc9d2cf23fd219f5f9f787d01c24b4f52be
C:\Program Files\Adobe\Acrobat DC\Acrobat\NGL\cefWorkflow\adobe_licensing_wf_acro.exe - b8a9d5807917687ab25ef2c5759f7f1520fda63f734924b93c86e5524d0e7f68
C:\Program Files\Adobe\Acrobat DC\Acrobat\NGL\cefWorkflow\adobe_licensing_wf_helper_acro.exe - 377693e2ca6eefba36f61373194f572541a409cb10808b8c71d52897a6df3e8f
bd115a575e86e61cea9136c5a2c47e090ba484dc2dee8b51a34111bb094266d5 - bd115a575e86e61cea9136c5a2c47e090ba484dc2dee8b51a34111bb094266d5
C:\Program Files\Eclipse Adoptium\jdk-21.0.5+11-jre\bin\kinit.exe - 4249313648a19af01cdf1f2dfdbeb04abd8188604e93aa09867840c5700074aa
C:\Program Files\Adobe\Acrobat DC\Acrobat\plug_ins\pi_brokers\32BitMAPIBroker.exe - 42b6653f3b75e9907972bd0abd7d83cc0558a58eba9130a9dfaa44a7cd642b2a
C:\Program Files\Adobe\Acrobat DC\Acrobat\CPInstCU.exe - d34c92d97f0a22a32c689ff02f38d5c08171c030564d39d3c636a6e8c4d558b9
C:\Program Files\Eclipse Adoptium\jdk-21.0.5+11-jre\bin\ktab.exe - 17fa6b129880648814631228446a1b8977ff100ce8e9e13fd231f63db725ef6e
C:\Windows\GOG.exe - 724c6ec63fa05e3377f0b76a108eab01017cdba36a832bf08905cdfeaf45b751
C:\Program Files\Adobe\Acrobat DC\Acrobat\Browser\WCChromeExtn\WCChromeNativeMessagingHost.exe - bb8dff0464a742111df5928b18edf897947746f662c6b9ad63c413b854aa6878
C:\Program Files\Adobe\Acrobat DC\Acrobat\x86\Acrobat\Acrobat.exe - 698f79937dc7b693633e00453acea137673a666e8b98c796d14fb8a41df1fdac
C:\Program Files\Adobe\Acrobat DC\Acrobat\ShowAppPickerForPDF.exe - 40ff1730e04fe5965bd242e75da1a71dfa300849fab419b311997f0895bf6e31
C:\Program Files\Eclipse Adoptium\jdk-21.0.5+11-jre\bin\javaw.exe - 89d3928dedb18bbc711fcaecdfb8f616df670bf1d9eae72aed2a0a6db6056e02
C:\Program Files\Eclipse Adoptium\jdk-21.0.5+11-jre\bin\jaccesswalker.exe - 012fd7cef59e41bc314e88757f832370a9ae61407b6a3bef2b1a00dc0f219305
C:\Program Files\Adobe\Acrobat DC\Acrobat\AcroBroker.exe - 7ab807b2f85d1de86a4ddbdc9efffe045c74d75668f9e7428999e863a062507b

Embedded URLs

http://www.microsoft.com/pki/certs/MicrosoftTimeStampPCA.crt0
http://crl.microsoft.com/pki/crl/products/microsoftrootcert.crl0T
http://www.msftconnecttest.com/connecttest.txt
http://rb.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTDRSYViRCZTxmZjLENmnwVjLly9QQU1MAGIknrOUvdk%2BJcobhHdglyA1gCEF0QyxjrOnkAh4OrdHf50xk%3D
http://rb.symcb.com/rb.crl

Embedded domains

crl.microsoft.com
www.microsoft.com

Embedded IP addresses

51.105.71.137
4.155.95.136
52.123.252.240
4.230.171.124
172.64.154.167
74.178.240.51
172.215.188.232
20.184.175.17
20.165.94.63
52.110.12.37
52.110.12.38
4.150.223.114
4.207.44.71
72.154.7.112
52.148.114.188
52.110.12.56
52.110.12.50

File paths

X:\:`:d:r:
J:\:
L:\:l:
X:\:`:d:h:l:p:t:x:

More Lmir samples · Latest analyzed threats · ATT&CK coverage

Analyzed on MalwareAnalyzer by Cyble · Open interactive report