MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 82135f6f510ef27ec3e78249e0d2bf276a8890385b47e65391756b7f254c487b. 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: 12


Intelligence 12 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 82135f6f510ef27ec3e78249e0d2bf276a8890385b47e65391756b7f254c487b
SHA3-384 hash: 5bd87d2b672e0eb2962399533d98ab67f36bab2abf331df9fe78b1d33229a4763777668c1c8911465e189342262a8685
SHA1 hash: fa94cfebae5c55a70c175e6f26641d7561d727e5
MD5 hash: 5d02e9834d5a3a6465aa8fa7f6b51490
humanhash: king-finch-twenty-oxygen
File name:RFQ DOC0029928938211.exe
Download: download sample
Signature GuLoader
Create hunting rule
File size:500'832 bytes
First seen:2023-05-11 07:27:58 UTC
Last seen:2023-05-16 15:54:39 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash b34f154ec913d2d2c435cbd644e91687 (530 x GuLoader, 110 x RemcosRAT, 80 x EpsilonStealer)
ssdeep 12288:Wzd8UZp23enmUF0NAGvsmEhzkCDlFMddoudBYM4:WRBZpkmF7GEXJkqlFo7d4
Threatray 651 similar samples on MalwareBazaar
TLSH T1A7B412113F25A4A3C6E64A32694F865E2F707CE528510B7F3778B76E2C70291CA1A37D
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 70fcf2fef6d0e8b1 (2 x RemcosRAT, 1 x GuLoader)
Reporter lowmal3
Tags:exe GuLoader signed

Code Signing Certificate

Organisation:
Issuer:
Algorithm:sha256WithRSAEncryption
Valid from:2022-05-24T08:28:52Z
Valid to:2025-05-23T08:28:52Z
Serial number: 3a3bcef805c37eefd487ba6fc85f6dd78d1df967
Thumbprint Algorithm:SHA256
Thumbprint: 7281323675ec618b71952574a46f0b9b41589eddd7743fe56c9527801308b3b3
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin
# of uploads :
3
# of downloads :
292
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
5d02e9834d5a3a6465aa8fa7f6b51490.exe
Verdict:
Malicious activity
Analysis date:
2023-05-11 01:38:03 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/a08c0513-10ea-4e26-acec-b4de100254a3

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/388364/
Detection(s):
SecuriteInfo.com.W32.Agent.GCT.gen.Eldorado.16775.31688.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
Creating a file
Creating a file in the %temp% subdirectories
Delayed reading of the file
Sending a custom TCP request
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/83481/overview
Behaviour
MalwareBazaar
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
guloader icedid overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/645c99044427eddb118c0c6e/reports/dcae96de-20e4-4944-b141-7d4dcc7f24a0/overview
Verdict:
Malicious
Labled as:
TR/AD.NsisInject
Link:
https://www.hybrid-analysis.com/sample/82135f6f510ef27ec3e78249e0d2bf276a8890385b47e65391756b7f254c487b
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/661830c2-3c62-48c7-a87b-11bebc3d3fc6
Result
Threat name:
GuLoader, Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.evad.phis.spyw
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1230611
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to modify clipboard data
Detected unpacking (changes PE section rights)
Found malware configuration
Initial sample is a PE file and has a suspicious name
Installs a global keyboard hook
Maps a DLL or memory area into another process
Multi AV Scanner detection for submitted file
Sample uses string decryption to hide its real strings
Sigma detected: Remcos
Snort IDS alert for network traffic
Tries to detect Any.run
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Instant Messenger accounts or passwords
Tries to steal Mail credentials (via file / registry access)
Yara detected GuLoader
Yara detected Remcos RAT
Yara detected WebBrowserPassView password recovery tool
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 863593 Sample: RFQ_DOC0029928938211.exe Startdate: 11/05/2023 Architecture: WINDOWS Score: 100 30 geoplugin.net 2->30 44 Snort IDS alert for network traffic 2->44 46 Found malware configuration 2->46 48 Antivirus detection for URL or domain 2->48 50 9 other signatures 2->50 8 RFQ_DOC0029928938211.exe 5 34 2->8         started        signatures3 process4 file5 26 C:\Users\user\AppData\Local\...\System.dll, PE32 8->26 dropped 52 Detected unpacking (changes PE section rights) 8->52 54 Contains functionality to modify clipboard data 8->54 56 Tries to detect Any.run 8->56 12 RFQ_DOC0029928938211.exe 3 16 8->12         started        signatures6 process7 dnsIp8 32 194.59.218.151, 49805, 80 FASTWEBIT Netherlands 12->32 34 155.94.185.15, 2404, 49806, 49807 ASN-QUADRANET-GLOBALUS United States 12->34 36 geoplugin.net 178.237.33.50, 49808, 80 ATOM86-ASATOM86NL Netherlands 12->36 28 C:\ProgramData\remcos\logs.dat, data 12->28 dropped 58 Tries to detect Any.run 12->58 60 Maps a DLL or memory area into another process 12->60 62 Installs a global keyboard hook 12->62 17 RFQ_DOC0029928938211.exe 1 12->17         started        20 RFQ_DOC0029928938211.exe 1 12->20         started        22 RFQ_DOC0029928938211.exe 1 12->22         started        24 27 other processes 12->24 file9 signatures10 process11 signatures12 38 Tries to steal Instant Messenger accounts or passwords 17->38 40 Tries to steal Mail credentials (via file / registry access) 17->40 42 Tries to harvest and steal browser information (history, passwords, etc) 24->42
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/82135f6f510ef27ec3e78249e0d2bf276a8890385b47e65391756b7f254c487b/
Threat name:
Win32.Trojan.Guloader
Create hunting rule
Status:
Malicious
First seen:
2023-05-11 00:30:55 UTC
File Type:
PE (Exe)
Extracted files:
9
AV detection:
8 of 36 (22.22%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=qijv632rb3zh5q7hqje6buv7e5virebylnd6mu4rovvx6jkmjb5q._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
cloudeye
Create hunting rule
Similar samples:
02dc4c2aca6b32a790ff9fddb92b22ed74bab685160bd6374931a2e9edd63f0a
GuLoader
07079c49949ed4619204d3b640c590e102156526e9796c4966ead639b992385d
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198c4b09ed4b8a46cfca9fd672797c0bb6f6d9a84016fd4f699ec65be9b9de3d
GuLoader
229803d2640463de8048f78dab377fe80cffd8f46b075eacb276358b1a78cd15
GuLoader
25f9cee4db59dd499e9c4088926393e28f8bf51cbba8451c71d95af069189385
GuLoader
3e95a3d6fa66dde612e6c43e15acd6e7b825ddb520ea562ad8f256190f2d21b8
GuLoader
7dec684e4f8201ed9aa44dca7eed761a0e2c62f0df0d6a6d3bf70d2993bcaa31
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be95c7a6e7d0d95cafd06db1550a4b777737f0575cc8b8fed9cba480e663d06e
GuLoader
cae72040b23f41152097cdd9ca3500fb0b82f6c64479d125472edd7b2d0f37c6
GuLoader
ecfd8eaed01a5714355b6b8a09f47e35c1a81691ecd1d9f3e757010ed09d2d12
GuLoader
+ 641 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:guloader family:remcos botnet:remotehost collection discovery downloader rat spyware stealer
Link:
https://tria.ge/reports/230511-janmcaeb81/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops file in Program Files directory
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Accesses Microsoft Outlook accounts
Checks installed software on the system
Checks QEMU agent file
Loads dropped DLL
Reads user/profile data of web browsers
NirSoft MailPassView
NirSoft WebBrowserPassView
Nirsoft
Guloader,Cloudeye
Remcos
Malware Config
C2 Extraction:
155.94.185.15:2404
Unpacked files
SH256 hash:
f004c568d305cd95edbd704166fcd2849d395b595dff814bcc2012693527ac37
MD5 hash:
8b3830b9dbf87f84ddd3b26645fed3a0
SHA1 hash:
223bef1f19e644a610a0877d01eadc9e28299509
Link:
https://www.unpac.me/results/c2e0598e-d2ff-4e52-b396-cb449847bd3b/
SH256 hash:
82135f6f510ef27ec3e78249e0d2bf276a8890385b47e65391756b7f254c487b
MD5 hash:
5d02e9834d5a3a6465aa8fa7f6b51490
SHA1 hash:
fa94cfebae5c55a70c175e6f26641d7561d727e5
Link:
https://www.unpac.me/results/c2e0598e-d2ff-4e52-b396-cb449847bd3b/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/82135f6f510e/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.

Malspam

GuLoader

Executable exe 82135f6f510ef27ec3e78249e0d2bf276a8890385b47e65391756b7f254c487b

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/388364/

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