MALICIOUS — 6535c79f0306641b9ef5dfd626eb7cde614b3f96b9a23bcc613e77e4c348ff9f
MALICIOUS — 6535c79f0306641b9ef5dfd626eb7cde614b3f96b9a23bcc613e77e4c348ff9f is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (96/100), attributed to the Ulise family. 6 of 55 detection engines flagged it.
Identification
- SHA-256:
6535c79f0306641b9ef5dfd626eb7cde614b3f96b9a23bcc613e77e4c348ff9f - SHA-1:
d4ca5eeb524a8327015cac9488936a5dd44e8c0e - MD5:
9ef73f10839a11a18ef5a540789a7a7e - imphash:
3680a4ad647eee3bc552c106d95885d1 - ssdeep:
6144:POdygI7Omdr5uvmuPjgARI3iS8XNsx3kih:sIymn2muPjgARIqu - TLSH:
T11D468DCE63187759EA338E6A6C424B4E445760F4C57E240C4E97C43E23F0C5BE8B66A9 - Submitted as: 6535c79f0306641b9ef5dfd626eb7cde614b3f96b9a23bcc613e77e4c348ff9f
- File type: pe · Size: 294400 bytes
- Verdict: malicious (96/100) · Family: Ulise
Detections (6 of 55 engines)
- ClamAV (daily): Win.Packed.Ulise-9907202-0
- YARA: Yara-Rules community: YR_AntiDebug_Checks
- Microsoft Defender: Ransom:Win32/StopCrypt.SG!MTB
- Emsisoft (Emergency Kit): Trojan.Crypt
- Trellix Stinger (McAfee): Packed-GDT!9EF73F10839A
- Kaspersky (KVRT): HEUR:Trojan.Win32.Strab.pef
Why this verdict
The malicious score of 96/100 is the fusion of 5 weighted signals:
- ClamAV (daily) flagged Win.Packed.Ulise-9907202-0 (rule
Win.Packed.Ulise-9907202-0) - engine signal, weight 0.90, confidence 0.95 - Contacted 21 external host(s) at runtime (16 HTTP) - network signal, weight 0.40, confidence 0.80
- Extracted Tofsee config (0 C2) - engine signal, weight 0.45, confidence 0.60
- YARA: Yara-Rules community flagged YR_AntiDebug_Checks (rule
YR_AntiDebug_Checks) - engine signal, weight 0.35, confidence 0.70 - Embedded network infrastructure: 50.9.42.91, 2.8.5.21 - static signal, weight 0.35, confidence 0.60
Dynamic analysis (windows)
16 behavior events · 0 ATT&CK techniques · 3 dropped files.
Runtime network
- www.msftconnecttest.com
- rb.symcd.com
- rb.symcb.com
- inference.location.live.net
- to-do.office.com
- staging.to-do.officeppe.com
- teams.cloud.microsoft
- outlook.office.com
- outlook.office365.com
- outlook.cloud.microsoft
- ctldl.windowsupdate.com
- login.live.com
- ocsp.digicert.com
- desktop-hsgcbep
- v20.events.data.microsoft.com
- config.edge.skype.com
- windows.msn.com
- oneocsp.microsoft.com
- www.msn.com
- officeclient.microsoft.com
Dropped files
- ecac1f774712981d8976fd6d43c1f2f74dc8d6414d79116bc0e0dcae73e94ea9 -
ecac1f774712981d8976fd6d43c1f2f74dc8d6414d79116bc0e0dcae73e94ea9 - 448e8aeb2dcd412f100bd4271b6bc0f87d6922877f96d874d74144ec811de88c -
448e8aeb2dcd412f100bd4271b6bc0f87d6922877f96d874d74144ec811de88c - 19ed50a930dab99353e2c7195230c09d5dac85ebc35f6dae8ebb3ffa1005a3a3 -
19ed50a930dab99353e2c7195230c09d5dac85ebc35f6dae8ebb3ffa1005a3a3
Embedded URLs
- http://www.msftconnecttest.com/connecttest.txt
- http://rb.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTDRSYViRCZTxmZjLENmnwVjLly9QQU1MAGIknrOUvdk%2BJcobhHdglyA1gCEF0QyxjrOnkAh4OrdHf50xk%3D
- http://rb.symcb.com/rb.crl
- http://203.26.79.13/filestreamingservice//files/fa5c4269-9d03-4a47-8d97-be6931f0b22c/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice/files/fa5c4269-9d03-4a47-8d97-be6931f0b22c?P1=1787888156&P2=404&P3=2&P4=H1NxW5l1Fv2ppRIWIU58e8o%2fpO7j7aEFQDD3uhPMSG3n7zNNYBSmUw9wdd5rztPFODkN3jfcJi%2bL6fnky%2fqEpg%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
Embedded IP addresses
- 50.9.42.91
- 2.8.5.21
- 52.123.252.227
- 20.184.175.16
- 4.230.171.124
- 40.84.85.40
- 4.144.132.223
- 52.123.252.192
- 74.178.240.61
- 135.232.92.97
- 74.178.76.128
- 20.76.201.171
- 52.123.129.14
- 52.123.128.14
- 40.104.4.2
- 20.184.175.5
- 203.26.79.13
- 135.233.45.223
- 72.145.35.104
- 52.148.114.188
- 52.110.12.28
- 135.233.95.80
- 52.110.12.5
File paths
- f:\dd\vctools\crt_bld\self_x86\crt\src\_file.c
- f:\dd\vctools\crt_bld\self_x86\crt\src\_sftbuf.c
- f:\dd\vctools\crt_bld\self_x86\crt\src\ioinit.c
- f:\dd\vctools\crt_bld\self_x86\crt\src\stdenvp.c
- f:\dd\vctools\crt_bld\self_x86\crt\src\stdargv.c
- f:\dd\vctools\crt_bld\self_x86\crt\src\a_env.c
- f:\dd\vctools\crt_bld\self_x86\crt\src\tidtable.c
- f:\dd\vctools\crt_bld\self_x86\crt\src\mlock.c
- f:\dd\vctools\crt_bld\self_x86\crt\src\_getbuf.c
- f:\dd\vctools\crt_bld\self_x86\crt\src\onexit.c
- f:\dd\vctools\crt_bld\self_x86\crt\src\mbctype.c
- f:\dd\vctools\crt_bld\self_x86\crt\src\output.c
- C:\tafusi\suku.pdb
- f:\dd\vctools\crt_bld\self_x86\crt\src\puts.c
- f:\dd\vctools\crt_bld\self_x86\crt\src\_flsbuf.c
- f:\dd\vctools\crt_bld\self_x86\crt\src\fwrite.c
- f:\dd\vctools\crt_bld\self_x86\crt\src\fileno.c
- f:\dd\vctools\crt_bld\self_x86\crt\src\dbgrpt.c
- f:\dd\vctools\crt_bld\self_x86\crt\src\dbgheap.c
- f:\dd\vctools\crt_bld\self_x86\crt\src\crt0msg.c
- f:\dd\vctools\crt_bld\self_x86\crt\src\isatty.c
- f:\dd\vctools\crt_bld\self_x86\crt\src\lseeki64.c
- f:\dd\vctools\crt_bld\self_x86\crt\src\write.c
- f:\dd\vctools\crt_bld\self_x86\crt\src\dbgrptt.c
- f:\dd\vctools\crt_bld\self_x86\crt\src\winsig.c
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Analyzed on MalwareAnalyzer by Cyble · Open interactive report