MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 2a831c8d63686e4b79cfced16e26d47f95de8cdbd178876659f9e7ec75e42789. 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: 9


Intelligence 9 IOCs YARA File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 2a831c8d63686e4b79cfced16e26d47f95de8cdbd178876659f9e7ec75e42789
SHA3-384 hash: 4034bf0093f9514a2068a08f0de38a9ee2f55a9be6c0164b6c8ddeeb8a6bcf5316c1cba6653008eb003544b2119da1f6
SHA1 hash: 71be4a53794322a70c36f22a532bdd5a9e82c47a
MD5 hash: a15da9fdfd935a4b05adc5e0cf0053a0
humanhash: black-florida-glucose-mountain
File name:a15da9fdfd935a4b05adc5e0cf0053a0
Download: download sample
Signature GuLoader
Create hunting rule
File size:360'769 bytes
First seen:2023-07-17 06:32:04 UTC
Last seen:2023-07-17 08:32:43 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 4ea4df5d94204fc550be1874e1b77ea7 (241 x GuLoader, 29 x RemcosRAT, 17 x VIPKeylogger)
ssdeep 6144:Hwq3NpAucY3Mh7fR6dtdKE0CuLavZDC8xr3gKkYbrx+gb6e+D:HzMp3cfKE7ZDCC1rrx+Ve+D
TLSH T132746B49F762ECE9FA664339257128263F819C1E61D9295C218DF7263C36313409BDFB
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 74e4d4d4ecf4d4d4 (23 x GuLoader, 20 x LummaStealer, 19 x AgentTesla)
Reporter zbetcheckin
Tags:32 exe GuLoader

Intelligence

File Origin
# of uploads :
2
# of downloads :
281
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Company Profile.doc
Verdict:
Malicious activity
Analysis date:
2023-07-17 05:54:18 UTC
Tags:
exploit cve-2017-11882 loader
Link:
https://app.any.run/tasks/04060d7f-0840-4f8f-9a51-503561a49fb2

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/422132/
Detection(s):
SecuriteInfo.com.Win32.Malware-gen.32323.13186.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a window
Creating a file in the %AppData% subdirectories
Creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
control lolbin overlay packed shell32
Link:
https://www.filescan.io/uploads/64b4e09f8be3f49cc38d8e33/reports/f3668d63-d9b1-4dfc-8c96-a4bc55148557/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_90%
Link:
https://www.hybrid-analysis.com/sample/2a831c8d63686e4b79cfced16e26d47f95de8cdbd178876659f9e7ec75e42789
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/7efabf73-ebc4-498d-af0f-1af8c7a9db20
Result
Threat name:
GuLoader, Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1274238
Signature
Antivirus detection for URL or domain
Creates autostart registry keys with suspicious names
Creates multiple autostart registry keys
Multi AV Scanner detection for submitted file
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)
Yara detected GuLoader
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1274238 Sample: CT7DP2sgVy.exe Startdate: 17/07/2023 Architecture: WINDOWS Score: 100 44 Snort IDS alert for network traffic 2->44 46 Antivirus detection for URL or domain 2->46 48 Multi AV Scanner detection for submitted file 2->48 50 4 other signatures 2->50 8 CT7DP2sgVy.exe 6 54 2->8         started        12 presplenomegalic.exe 41 2->12         started        14 client.exe 41 2->14         started        process3 file4 36 C:\Users\user\AppData\Local\...\System.dll, PE32 8->36 dropped 60 Tries to detect Any.run 8->60 16 CT7DP2sgVy.exe 3 12 8->16         started        38 C:\Users\user\AppData\Local\...\System.dll, PE32 12->38 dropped 40 C:\Users\user\AppData\Local\...\System.dll, PE32 14->40 dropped signatures5 process6 dnsIp7 42 5.253.114.108, 2022, 49950, 49953 CLOUVIDERClouvider-GlobalASNGB United Kingdom 16->42 28 C:\ProgramData\client\client.exe, PE32 16->28 dropped 30 C:\ProgramData\...\client.exe:Zone.Identifier, ASCII 16->30 dropped 32 C:\Users\user\...\presplenomegalic.exe, PE32 16->32 dropped 52 Creates autostart registry keys with suspicious names 16->52 54 Creates multiple autostart registry keys 16->54 56 Tries to detect Any.run 16->56 21 client.exe 42 16->21         started        file8 signatures9 process10 file11 34 C:\Users\user\AppData\Local\...\System.dll, PE32 21->34 dropped 58 Tries to detect Any.run 21->58 25 client.exe 3 8 21->25         started        signatures12 process13 signatures14 62 Tries to detect Any.run 25->62
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/2a831c8d63686e4b79cfced16e26d47f95de8cdbd178876659f9e7ec75e42789/
Threat name:
Win32.Trojan.Leonem
Create hunting rule
Status:
Malicious
First seen:
2023-07-17 01:14:48 UTC
File Type:
PE (Exe)
Extracted files:
6
AV detection:
17 of 25 (68.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=fkbrzdldnbxew6opz3iw4jwup6k55dg32f4iozsz7ht6y5pee6eq._file
Verdict:
unknown
Result
Malware family:
guloader
Create hunting rule
Score:
  10/10
Tags:
family:guloader discovery downloader persistence
Link:
https://tria.ge/reports/230717-ha681sae87/
Behaviour
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Adds Run key to start application
Checks installed software on the system
Checks QEMU agent file
Loads dropped DLL
Guloader,Cloudeye
Unpacked files
SH256 hash:
bd046e6497b304e4ea4ab102cab2b1f94ce09bde0eebba4c59942a732679e4eb
MD5 hash:
17ed1c86bd67e78ade4712be48a7d2bd
SHA1 hash:
1cc9fe86d6d6030b4dae45ecddce5907991c01a0
Link:
https://www.unpac.me/results/b7b89483-c82c-4c5c-a42a-ac40fda64c88/
SH256 hash:
2a831c8d63686e4b79cfced16e26d47f95de8cdbd178876659f9e7ec75e42789
MD5 hash:
a15da9fdfd935a4b05adc5e0cf0053a0
SHA1 hash:
71be4a53794322a70c36f22a532bdd5a9e82c47a
Link:
https://www.unpac.me/results/b7b89483-c82c-4c5c-a42a-ac40fda64c88/
Please note that we are no longer able to provide a coverage score for Virus Total.

File information

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

Web download

GuLoader

Executable exe 2a831c8d63686e4b79cfced16e26d47f95de8cdbd178876659f9e7ec75e42789

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2684283/
Cape
Cape
https://www.capesandbox.com/analysis/422132/

Comments


Avatar
zbet commented on 2023-07-17 06:32:05 UTC

url : hxxp://87.121.221.212/jawazx.exe