MALICIOUS — 1f28971f82a849407416542be56ca17b3c543553ca63923b7a673d7d901258bf

MALICIOUS — 1f28971f82a849407416542be56ca17b3c543553ca63923b7a673d7d901258bf is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (100/100), attributed to the Amhfbyrbndc family. 8 of 56 detection engines flagged it, exhibiting 4 ATT&CK techniques.

Identification

SHA-256: 1f28971f82a849407416542be56ca17b3c543553ca63923b7a673d7d901258bf
SHA-1: 0afec599326a4f087108cd1cd48241bf681725e6
MD5: e82fc0f9eff1873491df86608d459bcf
imphash: 0c75723fedd9c27bef321a9d944591c8
ssdeep: 384:fo9q5pG7Vbjz0QhuvmtSh/6kTMklKBcdDtI7JliSwlmerfVjuujQA+CJwQ:GqDSbP0w+mFko/B8I7JUSiVfVyLA+KZ
TLSH: T11627CFA980D2C5B9F7BF813D386A672F8CA5F23C2D11CE087D10666915EC3E324C2855
Submitted as: 1f28971f82a849407416542be56ca17b3c543553ca63923b7a673d7d901258bf
File type: pe · Size: 16478 bytes
Verdict: malicious (100/100) · Family: Amhfbyrbndc

Detections (8 of 56 engines)

MalwareAnalyser heuristics (entropy/packer): UPX
ClamAV (daily): Win.Malware.Amhfbyrbndc-9891058-0
YARA: JPCERT/CC: JPCERT_HUILoader_PlugX_SideLoad
Detect It Easy (packer/type): DIE:Microsoft Linker
Microsoft Defender: Trojan:Win32/Androm!pz
Emsisoft (Emergency Kit): Gen:Trojan.Heur.D.bmHfbyRbNDc
Trellix Stinger (McAfee): Agent-FQY!E82FC0F9EFF1
Kaspersky (KVRT): HEUR:Trojan.Win32.Agent.gen

MITRE ATT&CK

Why this verdict

The malicious score of 100/100 is the fusion of 16 weighted signals:

ClamAV (daily) flagged Win.Malware.Amhfbyrbndc-9891058-0 (rule Win.Malware.Amhfbyrbndc-9891058-0) - engine signal, weight 0.90, confidence 0.95
Microsoft Defender flagged Trojan:Win32/Androm!pz (rule Trojan:Win32/Androm!pz) - engine signal, weight 0.55, confidence 0.85
Emsisoft (Emergency Kit) flagged Gen:Trojan.Heur.D.bmHfbyRbNDc (rule Gen:Trojan.Heur.D.bmHfbyRbNDc) - engine signal, weight 0.55, confidence 0.85
Trellix Stinger (McAfee) flagged Agent-FQY!E82FC0F9EFF1 (rule Agent-FQY!E82FC0F9EFF1) - engine signal, weight 0.55, confidence 0.85
Kaspersky (KVRT) flagged HEUR:Trojan.Win32.Agent.gen (rule HEUR:Trojan.Win32.Agent.gen) - 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: Windows Service (T1543.003) (rule Windows Service) - dynamic signal, weight 0.40, confidence 0.90
1 behavioral detection(s) across 1 rule(s): Windows Service Installation [medium] (rule tl-service-install) - dynamic signal, weight 0.40, confidence 0.90
Contacted 2 external host(s) and 16 HTTP request(s) at runtime - network signal, weight 0.40, confidence 0.80
Detect It Easy (packer/type) flagged DIE:Microsoft Linker (rule DIE:Microsoft Linker) - engine signal, weight 0.35, confidence 0.70
MalwareAnalyser heuristics (entropy/packer) flagged UPX (rule UPX) - engine signal, weight 0.35, confidence 0.70
communicate over HTTP (rule communicate over HTTP) - capa signal, weight 0.30, confidence 0.60
Packing/obfuscation: UPX, high-entropy-sections:UPX1, Microsoft Linker - static signal, weight 0.25, confidence 0.55
Dropped 1 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: 2 finding(s) elsewhere in the guest, not attributed to this sample, e.g. SSDT hook (rule windows.ssdt.SSDT) - memory signal, weight 0.05, confidence 0.30

Dynamic analysis (windows)

278 behavior events · 2 ATT&CK techniques · 2 dropped files.

Dropped files

C:\Users\analyst\AppData\Local\Temp\0woDhGrJ.exe - 5e10d3fdbc9d29b8a797437af708e4f1484962d5bb4b02a3f59c28b112428b16
590415cd32731d610802b46d1fd775e103f3dcc69ce30a6cff446c8e108dc2ce - 590415cd32731d610802b46d1fd775e103f3dcc69ce30a6cff446c8e108dc2ce

Embedded URLs

http://www.msftconnecttest.com/connecttest.txt
http://rb.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTDRSYViRCZTxmZjLENmnwVjLly9QQU1MAGIknrOUvdk%2BJcobhHdglyA1gCEF0QyxjrOnkAh4OrdHf50xk%3D
http://rb.symcb.com/rb.crl
http://c.pki.goog/r/r1.crl
http://x2.c.lencr.org/
http://ye.c.lencr.org/
http://c.pki.goog/wr2/9UVbN0w5E6Y.crl
http://yr.c.lencr.org/

Embedded domains

test.besthotel360.com
x1.c.lencr.org
x2.c.lencr.org
ye.c.lencr.org
yr.c.lencr.org

Embedded IP addresses

52.168.112.67
20.42.179.192
52.123.252.222
20.247.185.124
4.230.171.124
40.84.85.40
74.179.77.204
135.233.95.135
51.132.193.105
51.104.15.252
172.64.154.167
52.110.12.22
52.110.12.42
72.153.5.130
52.148.114.188
52.110.12.26
52.110.12.4

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

Analyzed on MalwareAnalyzer by Cyble · Open interactive report