MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f6a79144d1ff3fe08c93e756f50d43cba75721426448c17b702cdaa66e29ea7a. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry


GuLoader


Vendor detections: 11


Intelligence 11 IOCs YARA File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f6a79144d1ff3fe08c93e756f50d43cba75721426448c17b702cdaa66e29ea7a
SHA3-384 hash: 79fc62dd7006c487ae677fc91dabbf00ff11e042db79f2a1877cc160e68afb7d91244018f9b0e042313045da7a601aba
SHA1 hash: 77891e447a9db25d324b7f1a5f9231ec2a9dd8d4
MD5 hash: 13494c5a26bb6dee4cff75282a12bb78
humanhash: lake-thirteen-angel-winter
File name:unkemptly.exe
Download: download sample
Signature GuLoader
Create hunting rule
File size:585'640 bytes
First seen:2022-11-03 12:57:13 UTC
Last seen:2022-11-04 17:45:14 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash b34f154ec913d2d2c435cbd644e91687 (527 x GuLoader, 110 x RemcosRAT, 80 x EpsilonStealer)
ssdeep 12288:v+1f9hioXzy/7ievXCl3QIY6HouKgTyiMChFWnHqaW1NJQ5sAtHu:AffiOz4iQXCC0/yBCHVbssUu
Threatray 134 similar samples on MalwareBazaar
TLSH T1D4C4235522A8C1F7ECB263B40D7F67F3267DCE20C996414353986E1DBE22AD14FAA10D
TrID 48.8% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
16.4% (.EXE) Win64 Executable (generic) (10523/12/4)
10.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.8% (.EXE) Win16 NE executable (generic) (5038/12/1)
7.0% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon 30f0d4bea6c2f0d8 (6 x GuLoader)
Reporter malwarelabnet
Tags:exe GuLoader signed

Code Signing Certificate

Organisation:
Issuer:
Algorithm:sha256WithRSAEncryption
Valid from:2022-05-17T18:13:30Z
Valid to:2025-05-16T18:13:30Z
Serial number: -7f4b41583ff88072
Thumbprint Algorithm:SHA256
Thumbprint: 27853e4d231036af06c55a286c3c8ef74f235b6aa5cd0652f4435d4358e7ed35
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin
# of uploads :
3
# of downloads :
216
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
guloader
Create hunting rule
ID:
1
File name:
unkemptly.exe
Verdict:
Malicious activity
Analysis date:
2022-11-03 13:02:10 UTC
Tags:
guloader
Link:
https://app.any.run/tasks/8dc79196-be3b-4be1-8b3e-67ffafa5c497

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/327954/
Detection(s):
SecuriteInfo.com.Gen.Variant.Nemesis.13398.12341.14299.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Searching for the window
Creating a window
Creating a file
Creating a file in the %temp% subdirectories
Delayed reading of the file
Launching a process
Forced system process termination
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/48004/overview
Behaviour
MalwareBazaar
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/6363df8ec5794372a9a511f8/reports/b381c042-401a-4128-aad3-a49723a4ca15/overview
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/c4999620-4596-4096-8fc6-9c756a33e222
Result
Threat name:
FormBook, GuLoader
Create hunting rule
Detection:
malicious
Classification:
troj.evad.spyw
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1104674
Signature
C2 URLs / IPs found in malware configuration
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Modifies the context of a thread in another process (thread injection)
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sample is not signed and drops a device driver
Sample uses process hollowing technique
Snort IDS alert for network traffic
System process connects to network (likely due to code injection or exploit)
Tries to detect Any.run
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Writes to foreign memory regions
Yara detected FormBook
Yara detected GuLoader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 737342 Sample: unkemptly.exe Startdate: 03/11/2022 Architecture: WINDOWS Score: 100 35 xn--29-oj9ik7b890b.net 2->35 37 www.youlian.fund 2->37 39 21 other IPs or domains 2->39 51 Snort IDS alert for network traffic 2->51 53 Malicious sample detected (through community Yara rule) 2->53 55 Multi AV Scanner detection for submitted file 2->55 57 4 other signatures 2->57 10 unkemptly.exe 4 40 2->10         started        signatures3 process4 file5 29 C:\Users\user\AppData\Local\...\System.dll, PE32 10->29 dropped 31 C:\Users\user\...\APM_DefConvertor.dll, PE32 10->31 dropped 33 C:\Users\user\...\libgoocanvas-3.0-9.dll, PE32+ 10->33 dropped 69 Tries to detect Any.run 10->69 71 Sample is not signed and drops a device driver 10->71 14 unkemptly.exe 6 10->14         started        signatures6 process7 dnsIp8 47 drive.google.com 142.250.185.206, 443, 49797 GOOGLEUS United States 14->47 49 googlehosted.l.googleusercontent.com 142.250.185.65, 443, 49798 GOOGLEUS United States 14->49 73 Modifies the context of a thread in another process (thread injection) 14->73 75 Tries to detect Any.run 14->75 77 Maps a DLL or memory area into another process 14->77 79 2 other signatures 14->79 18 RAVCpl64.exe 14->18 injected signatures9 process10 process11 20 msiexec.exe 13 18->20         started        signatures12 59 Tries to steal Mail credentials (via file / registry access) 20->59 61 Tries to harvest and steal browser information (history, passwords, etc) 20->61 63 Writes to foreign memory regions 20->63 65 3 other signatures 20->65 23 explorer.exe 20->23 injected 27 firefox.exe 20->27         started        process13 dnsIp14 41 www.rsvstudio.com 156.254.172.36, 49857, 49858, 49859 XIAOZHIYUN1-AS-APICIDCNETWORKUS Seychelles 23->41 43 xn--29-oj9ik7b890b.net 50.87.192.144, 49841, 49842, 49843 UNIFIEDLAYER-AS-1US United States 23->43 45 11 other IPs or domains 23->45 67 System process connects to network (likely due to code injection or exploit) 23->67 signatures15
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f6a79144d1ff3fe08c93e756f50d43cba75721426448c17b702cdaa66e29ea7a/
Threat name:
Win32.Trojan.Guloader
Create hunting rule
Status:
Malicious
First seen:
2022-11-03 12:04:27 UTC
File Type:
PE (Exe)
Extracted files:
10
AV detection:
23 of 41 (56.10%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=62tzcrgr7476bdet45lpkdkdzotvoikcmremc63qftnkm3rj5j5a._file
Verdict:
malicious
Label(s):
cloudeye
Create hunting rule
Similar samples:
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1d3e8941eb686b154fca77b2c80b84a19fdf21ebd298dc55d4519310ed011add
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57db1a9611191d01fbe260f052e87a6fb0cf7dbb1644079727627252ee3e109a
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90903410062ac828233bd91ed1adb4781ba522a6131b19330bcd8ef7c791672b
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d3a66173013a037b63d6ab4eb79916bb7e32cea117a3a12ed823f1f41ee69ce2
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d418b33e0f47d43fcc31e623c7c2b581aa9df51fb47a15414a8bb45b009f813b
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ef98f88e2af062e52962b309ec92736c485ce509e6319271cdde46e030455b5b
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ffcce35d4896562beaf95b7bb73d14d421f1e41be4e6031d671fa10f37a33603
GuLoader
+ 124 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  7/10
Tags:
discovery
Link:
https://tria.ge/reports/221103-p7hegsadd7/
Behaviour
Enumerates physical storage devices
Checks installed software on the system
Loads dropped DLL
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/f577adde-f946-496f-82b8-101bc5b6ad44
Unpacked files
SH256 hash:
f004c568d305cd95edbd704166fcd2849d395b595dff814bcc2012693527ac37
MD5 hash:
8b3830b9dbf87f84ddd3b26645fed3a0
SHA1 hash:
223bef1f19e644a610a0877d01eadc9e28299509
Link:
https://www.unpac.me/results/e7d7854d-65f5-400e-996e-4c632b58ae6c/
SH256 hash:
f6a79144d1ff3fe08c93e756f50d43cba75721426448c17b702cdaa66e29ea7a
MD5 hash:
13494c5a26bb6dee4cff75282a12bb78
SHA1 hash:
77891e447a9db25d324b7f1a5f9231ec2a9dd8d4
Link:
https://www.unpac.me/results/e7d7854d-65f5-400e-996e-4c632b58ae6c/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
Link:
https://yomi.yoroi.company/submissions/f6a79144d1ff3fe08c93e756f50d43cba75721426448c17b702cdaa66e29ea7a

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Cape
Cape
https://www.capesandbox.com/analysis/327954/

Comments