MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e540958829005866e4ecd6e7f1cdf3b5c2f063717a746d4485ff0ed62ccf9e71. 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: e540958829005866e4ecd6e7f1cdf3b5c2f063717a746d4485ff0ed62ccf9e71
SHA3-384 hash: 250e0c4529f594ff6e4b19128d1ac2069ea445c844133fecef5462ff271b8daa1c70a6873afe422f1cd6b14590dc640e
SHA1 hash: d951b8ef60e3c11e0c90761fa0057aa3534df42c
MD5 hash: 119764b23b4ba1669e5e3a2f001d9974
humanhash: pip-fifteen-april-pennsylvania
File name:SirtakiQuote No 104-346.exe
Download: download sample
Signature GuLoader
Create hunting rule
File size:1'771'984 bytes
First seen:2023-10-12 08:24:40 UTC
Last seen:2023-10-13 09:30:48 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash b34f154ec913d2d2c435cbd644e91687 (527 x GuLoader, 110 x RemcosRAT, 80 x EpsilonStealer)
ssdeep 49152:d8mdIHHlnWrxywK5/AXx1RPIf44B81jKn/VS5pXw6Qc:d8mdIHHlnWQJKyl+Fl5Qc
TLSH T1AE8512E35A2C88C3E45456B4A81BE7B32F740FB17E26A5163073773B94B1BD1292E46C
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 78ceadb1a9adc470 (3 x GuLoader)
Reporter lowmal3
Tags:exe GuLoader signed

Code Signing Certificate

Organisation:
Issuer:
Algorithm:sha256WithRSAEncryption
Valid from:2023-06-14T05:57:38Z
Valid to:2026-06-13T05:57:38Z
Serial number: 7455ed0c5cad65e0b9e7f9303b7b01dd87a0ec81
Thumbprint Algorithm:SHA256
Thumbprint: 525bf3c0521b903ed9af1b87a41bc35f264eb46965472726691fa1527ef9ad65
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin
# of uploads :
4
# of downloads :
298
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
guloader
Create hunting rule
ID:
1
File name:
SirtakiQuote No 104-346.exe
Verdict:
Malicious activity
Analysis date:
2023-10-12 08:27:31 UTC
Tags:
guloader
Link:
https://app.any.run/tasks/578fc010-ddab-46d6-aac2-2db3d68c64e6

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/453714/
Detection(s):
SecuriteInfo.com.W32.Injector.RXSO-0051.24647.16907.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% subdirectories
Delayed reading of the file
Gathering data
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
control installer lolbin overlay packed shell32
Link:
https://www.filescan.io/uploads/6527ad62d9aa13270180334b/reports/678a7b89-7d40-464d-9759-38299b5f2221/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_70%
Link:
https://www.hybrid-analysis.com/sample/e540958829005866e4ecd6e7f1cdf3b5c2f063717a746d4485ff0ed62ccf9e71
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/fda4f8c4-7239-474e-bcbf-2055cc90f36d
Result
Threat name:
GuLoader, Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.evad.phis.spyw
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1324499
Signature
C2 URLs / IPs found in malware configuration
Contains functionality to modify clipboard data
Found malware configuration
Installs a global keyboard hook
Maps a DLL or memory area into another process
Multi AV Scanner detection for submitted file
Snort IDS alert for network traffic
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)
Tries to steal Mail credentials (via file registry)
Uses dynamic DNS services
Writes to foreign memory regions
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: 1324499 Sample: SirtakiQuote_No_104-346.exe Startdate: 12/10/2023 Architecture: WINDOWS Score: 100 32 ourt2949aslumes9.duckdns.org 2->32 34 kapsnovin.com 2->34 36 geoplugin.net 2->36 50 Snort IDS alert for network traffic 2->50 52 Found malware configuration 2->52 54 Multi AV Scanner detection for submitted file 2->54 56 7 other signatures 2->56 8 SirtakiQuote_No_104-346.exe 2 59 2->8         started        signatures3 process4 file5 26 C:\Users\user\AppData\Local\...\System.dll, PE32 8->26 dropped 58 Writes to foreign memory regions 8->58 60 Maps a DLL or memory area into another process 8->60 12 wab.exe 4 17 8->12         started        signatures6 process7 dnsIp8 38 94.156.6.253, 2402, 50031, 50032 NET1-ASBG Bulgaria 12->38 40 kapsnovin.com 77.238.121.250, 50030, 80 ASIATECHIR Iran (ISLAMIC Republic Of) 12->40 42 geoplugin.net 178.237.33.50, 50033, 80 ATOM86-ASATOM86NL Netherlands 12->42 28 C:\Users\user\AppData\Roaming\paqlgkfs.dat, data 12->28 dropped 30 C:\Users\user\AppData\Local\...\monnie.exe, PE32 12->30 dropped 62 Maps a DLL or memory area into another process 12->62 64 Installs a global keyboard hook 12->64 17 wab.exe 1 12->17         started        20 wab.exe 1 12->20         started        22 wab.exe 2 12->22         started        24 2 other processes 12->24 file9 signatures10 process11 signatures12 44 Tries to steal Instant Messenger accounts or passwords 17->44 46 Tries to harvest and steal browser information (history, passwords, etc) 17->46 48 Tries to steal Mail credentials (via file / registry access) 20->48
Score:
75%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/e540958829005866e4ecd6e7f1cdf3b5c2f063717a746d4485ff0ed62ccf9e71
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/e540958829005866e4ecd6e7f1cdf3b5c2f063717a746d4485ff0ed62ccf9e71/
Threat name:
Win32.Trojan.GuLoader
Create hunting rule
Status:
Malicious
First seen:
2023-10-12 05:12:42 UTC
File Type:
PE (Exe)
Extracted files:
29
AV detection:
16 of 23 (69.57%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=4vajlcbjabmgnzhm23t7dtptwxbpay3rpj2g2ref74hnmlgptzyq._file
Verdict:
malicious
Label(s):
cloudeye
Create hunting rule
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:guloader family:remcos botnet:crypted downloader persistence rat
Link:
https://tria.ge/reports/231012-kba83sah87/
Behaviour
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Adds Run key to start application
Loads dropped DLL
Guloader,Cloudeye
Remcos
Malware Config
C2 Extraction:
ourt2949aslumes9.duckdns.org:2401
Unpacked files
SH256 hash:
a632d74332b3f08f834c732a103dafeb09a540823a2217ca7f49159755e8f1d7
MD5 hash:
75ed96254fbf894e42058062b4b4f0d1
SHA1 hash:
996503f1383b49021eb3427bc28d13b5bbd11977
Link:
https://www.unpac.me/results/6d587f2f-298d-49af-87ad-aa79ab0b53e7/
SH256 hash:
e540958829005866e4ecd6e7f1cdf3b5c2f063717a746d4485ff0ed62ccf9e71
MD5 hash:
119764b23b4ba1669e5e3a2f001d9974
SHA1 hash:
d951b8ef60e3c11e0c90761fa0057aa3534df42c
Link:
https://www.unpac.me/results/6d587f2f-298d-49af-87ad-aa79ab0b53e7/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/e54095882900/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 e540958829005866e4ecd6e7f1cdf3b5c2f063717a746d4485ff0ed62ccf9e71

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/453714/

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