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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 087660dc2a6b875e634ec97e02989bda25dacd024de28c35bcf0597c654046e0. 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: 10


Intelligence 10 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 087660dc2a6b875e634ec97e02989bda25dacd024de28c35bcf0597c654046e0
SHA3-384 hash: 4762c9662cbe9f71505273ac622d804ed087559df3ef32745e5b19edce9da96e9231ae76054359168260d16c1b3d9bff
SHA1 hash: ecf99b4bae23c5a2da6866fe20ca86a1a3bec012
MD5 hash: df0dfed7d9bb8ffc5ac307ef14dd86ed
humanhash: harry-failed-chicken-vegan
File name:PO-230711-AY_VTM50A.exe
Download: download sample
Signature GuLoader
Create hunting rule
File size:346'512 bytes
First seen:2023-08-14 13:59:38 UTC
Last seen:2023-08-18 13:05:55 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash b34f154ec913d2d2c435cbd644e91687 (592 x GuLoader, 130 x RemcosRAT, 84 x EpsilonStealer)
ssdeep 6144:cmOPKXTWo8aBPyT2PvEIOzalVa0vjntlcrjDpWgs/oiTrVYdHjKHnLXmfIEM:zSo8aBPk2nEhelRTtlc3D8gkoiL/
Threatray 720 similar samples on MalwareBazaar
TLSH T10674E0477B6C939EE39D8EB23D3942358758EF632910290AB7D4FE1D193224DAD063D2
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon e2ee8a8eb6d8ecf4 (56 x AgentTesla, 40 x RemcosRAT, 40 x GuLoader)
Reporter malwarelabnet
Tags:exe GuLoader remcos signed

Code Signing Certificate

Organisation:
Issuer:
Algorithm:sha256WithRSAEncryption
Valid from:2022-11-16T03:40:28Z
Valid to:2025-11-15T03:40:28Z
Serial number: 48a88538fa2c43896c1879646c02a2342ffcae6d
Thumbprint Algorithm:SHA256
Thumbprint: 664c52817a6e50e487bfd1737a876dfeb5dfaad5bc67eda2638821b0328626b4
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin
# of uploads :
2
# of downloads :
353
Origin country :
CA CA
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
PO-230711-AY_VTM50A.exe
Verdict:
Suspicious activity
Analysis date:
2023-08-14 14:00:06 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/37738893-17eb-4bb6-9157-ef5d59b7fc59

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/442669/
Detection(s):
SecuriteInfo.com.NSIS.MalwareX-gen.13848.29797.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
Creating a file in the %AppData% subdirectories
Delayed reading of the file
Searching for the window
Creating a file in the %temp% subdirectories
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/102846/overview
Behaviour
MalwareBazaar
Gathering data
Verdict:
Malicious
Labled as:
Win/malicious_confidence_90%
Link:
https://www.hybrid-analysis.com/sample/087660dc2a6b875e634ec97e02989bda25dacd024de28c35bcf0597c654046e0
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/bf0acae6-e3b1-4a66-9768-a8d5d4998419
Result
Threat name:
GuLoader, Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1290980
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Creates autostart registry keys with suspicious names
Creates multiple autostart registry keys
Found malware configuration
Multi AV Scanner detection for submitted file
Sigma detected: Remcos
Tries to detect Any.run
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Yara detected GuLoader
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1290980 Sample: PO-230711-AY_VTM50A.exe Startdate: 14/08/2023 Architecture: WINDOWS Score: 100 52 geoplugin.net 2->52 54 Found malware configuration 2->54 56 Antivirus detection for URL or domain 2->56 58 Antivirus / Scanner detection for submitted sample 2->58 60 6 other signatures 2->60 9 PO-230711-AY_VTM50A.exe 6 45 2->9         started        13 chromes.exe 31 2->13         started        15 Frugtfarverne.exe 2->15         started        signatures3 process4 file5 36 C:\Users\user\AppData\...\lang-1093.dll, PE32 9->36 dropped 38 C:\Users\user\AppData\Local\...\System.dll, PE32 9->38 dropped 68 Tries to detect Any.run 9->68 17 PO-230711-AY_VTM50A.exe 3 12 9->17         started        40 C:\Users\user\AppData\Local\...\System.dll, PE32 13->40 dropped 22 chromes.exe 3 15 13->22         started        42 C:\Users\user\AppData\Local\...\System.dll, PE32 15->42 dropped 70 Antivirus detection for dropped file 15->70 24 WerFault.exe 15->24         started        signatures6 process7 dnsIp8 46 96.47.233.210, 49749, 49754, 80 JAZZ-NETWORKUS United States 17->46 32 C:\Users\user\AppData\...\Frugtfarverne.exe, PE32 17->32 dropped 34 C:\ProgramData\chromes\chromes.exe, PE32 17->34 dropped 62 Creates autostart registry keys with suspicious names 17->62 64 Creates multiple autostart registry keys 17->64 66 Tries to detect Any.run 17->66 26 chromes.exe 31 17->26         started        48 23.19.87.242, 1987, 49755 LEASEWEB-USA-SEA-10US United States 22->48 50 geoplugin.net 178.237.33.50, 49756, 80 ATOM86-ASATOM86NL Netherlands 22->50 file9 signatures10 process11 file12 44 C:\Users\user\AppData\Local\...\System.dll, PE32 26->44 dropped 72 Antivirus detection for dropped file 26->72 30 WerFault.exe 21 16 26->30         started        signatures13 process14
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/087660dc2a6b875e634ec97e02989bda25dacd024de28c35bcf0597c654046e0/
Threat name:
Win32.Trojan.Generic
Create hunting rule
Status:
Malicious
First seen:
2023-08-14 14:00:08 UTC
File Type:
PE (Exe)
Extracted files:
6
AV detection:
7 of 24 (29.17%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=bb3gbxbknodv4y2ozf7afge33is5vticjxriynn46bmxyzkai3qa._file
Verdict:
malicious
Label(s):
cloudeye
Create hunting rule
Similar samples:
0394b5d83b6fa63b6c661265ce44b6036027af24c5c316050b607647a73d3541
GuLoader
0f849525b31bc8eb26642e47cdcf9a3b9c945e5e481dd427a3175486278ac2db
GuLoader
7136249249db3d970775998b54eb855fcaf4e53ebed0591a6754ee0c604bb534
GuLoader
7d982b49456267e913a88fa59dc74f405acc6f9f9d27038cf54596523877c799
GuLoader
8ef00db9712f487dc2bd4329378cb38ba2d1706284658e5e77602cb180ca82d7
GuLoader
c036bf9593241c5ba0f2a7d38b6ff8099344e4b17a758ff64b145f2329256415
GuLoader
caf073b1d85bc136488382be2c83c264ac64d2df279752341b1c4601c6201a41
GuLoader
d9c35851a578222df21273255d16f3fc4d6ccbf3b6120bf7e1fe1ecbfb534b8f
GuLoader
ffb9192afd43da5c2c43792c31e9595a7c277d8302a3159e9a9935d36b5ebb08
GuLoader
+ 710 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:logs persistence rat
Link:
https://tria.ge/reports/230814-raznlsed3z/
Behaviour
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops file in Windows directory
Drops file in System32 directory
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Adds Run key to start application
Checks QEMU agent file
Executes dropped EXE
Loads dropped DLL
Remcos
Malware Config
C2 Extraction:
23.19.87.242:1987
Unpacked files
SH256 hash:
c2f405d7402f815d0c3fadd9a50f0bbbb1bab9aa38fe347823478a2587299448
MD5 hash:
9625d5b1754bc4ff29281d415d27a0fd
SHA1 hash:
80e85afc5cccd4c0a3775edbb90595a1a59f5ce0
Link:
https://www.unpac.me/results/44670367-6633-4e1b-99b9-6c195a007a38/
SH256 hash:
087660dc2a6b875e634ec97e02989bda25dacd024de28c35bcf0597c654046e0
MD5 hash:
df0dfed7d9bb8ffc5ac307ef14dd86ed
SHA1 hash:
ecf99b4bae23c5a2da6866fe20ca86a1a3bec012
Link:
https://www.unpac.me/results/44670367-6633-4e1b-99b9-6c195a007a38/
Malware family:
GuLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/087660dc2a6b/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:PE_Potentially_Signed_Digital_Certificate
Create hunting rule
Author:albertzsigovits

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/442669/

Comments