MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 23f6c24a5984c1bc1450f2d6eb32f3ece4e52bc275b4e9eea038db9f7f4f7717. 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 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 23f6c24a5984c1bc1450f2d6eb32f3ece4e52bc275b4e9eea038db9f7f4f7717
SHA3-384 hash: b0a1dbb751b72fde03faacf74dc64e1a0bd9a879dece92887097455cc27263e4ec837eda2a4a5d0da76b97d3437966cb
SHA1 hash: 9f8157036a2370a35d228af8eef12e4742bb888c
MD5 hash: e7faf95fe72009e95bc98007a9204934
humanhash: yellow-oranges-cup-mirror
File name:DHL Air Waybill Number 290132721000000000000000000000000.exe
Download: download sample
Signature GuLoader
Create hunting rule
File size:526'104 bytes
First seen:2022-10-12 11:00:02 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash e9c0657252137ac61c1eeeba4c021000 (53 x GuLoader, 26 x RedLineStealer, 17 x AgentTesla)
ssdeep 12288:aSv6ymBW6V/EDp72+AfiCBOuGIcPp0vCphiFAV:3vaBJdg72fiCcfIcPp06LiFAV
Threatray 15'603 similar samples on MalwareBazaar
TLSH T174B4E1907A42D85EE58A4B32C441EE74E7715C791B618CE3E2A47F6F3B372423B9601B
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 8c8c9cb6b6366247 (5 x GuLoader)
Reporter lowmal3
Tags:exe GuLoader signed

Code Signing Certificate

Organisation:
Issuer:
Algorithm:sha256WithRSAEncryption
Valid from:2022-07-01T00:04:29Z
Valid to:2025-06-30T00:04:29Z
Serial number: -5e73c9f686768a60
Thumbprint Algorithm:SHA256
Thumbprint: 35c762eea481accc5231162fa51463fe3f80a0ebb57d3e675e882ee445c1410a
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin
# of uploads :
1
# of downloads :
405
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/319314/
Detection(s):
SecuriteInfo.com.MSIL.Kryptik.UGA.20041.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Searching for the window
Creating a file in the %temp% directory
Creating a file
Sending a custom TCP request
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/42653/overview
Behaviour
MalwareBazaar
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
buer overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/63469e3548a09eabde10ce65/reports/c6b65b7f-96bb-4abe-8480-8d6bd63ee747/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/0afe383a-b27f-4915-8f4d-e65b3fd46a2b
Result
Threat name:
AgentTesla, GuLoader
Create hunting rule
Detection:
malicious
Classification:
evad.troj.spyw
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1088746
Signature
Antivirus detection for URL or domain
Initial sample is a PE file and has a suspicious name
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
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 harvest and steal ftp login credentials
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected GuLoader
Behaviour
Behavior Graph:
Download SVG
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/23f6c24a5984c1bc1450f2d6eb32f3ece4e52bc275b4e9eea038db9f7f4f7717/
Threat name:
Win32.Trojan.Guloader
Create hunting rule
Status:
Malicious
First seen:
2022-10-12 06:31:30 UTC
File Type:
PE (Exe)
Extracted files:
12
AV detection:
18 of 26 (69.23%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ep3messzqta3yfcq6llowmxt5tsokk6cow2ot3vahdnz672po4lq._file
Verdict:
malicious
Label(s):
cloudeye
Create hunting rule
Similar samples:
1c88f5a9499a54522c8338fb93c326debeb890fb08251ce29fcf19ae7441d11c
GuLoader
38920e6f3a9c5908e9360388f0aa1f65b8e3df46849d758db7e1cdbf84727e3f
GuLoader
689ca59de6d01b808fa447086aefd829f18f5b628c279148220188ab95e66cf1
GuLoader
73188b6122dcf35a0d26fedf3679c9713e6f21ccf78499d8788ed39feb7fdb4a
GuLoader
79638b28279f6fc16f4d3a24a73ac67a405aa548aa09d6ca09f485b8e7e13901
GuLoader
7af76f869eab565b2b7d3ec5f141e5d8cd94551a6b1b31e0d8af7c3ea2b5a7db
GuLoader
9f6213768398115934da0a8ad4c3a6c021f6faa1103c25bb9d994153b08b9e5e
GuLoader
abdcbcd7837ddda736f49656e7cba74a20d82335063a7c3c3a57058113f686ab
GuLoader
ac09b75d9728cea73319605aee734b0b776e2d1677914f975674ce6674f3a5f3
GuLoader
ac229b3885937953446d36f13aec9becdc71cf2edd2a4df4a3a74cd91dfbf8b2
GuLoader
+ 15'593 additional samples on MalwareBazaar
Result
Malware family:
guloader
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla family:guloader collection discovery downloader keylogger spyware stealer trojan
Link:
https://tria.ge/reports/221012-m3zf4adcg2/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
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 profiles
Checks installed software on the system
Checks QEMU agent file
Loads dropped DLL
AgentTesla
Guloader,Cloudeye
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/0e88cbb5-60ca-484d-bf51-5720d12533fb
Unpacked files
SH256 hash:
ac9dfe3b35ea4b8932536ed7406c29a432976b685cc5322f94ef93df920fede7
MD5 hash:
0063d48afe5a0cdc02833145667b6641
SHA1 hash:
e7eb614805d183ecb1127c62decb1a6be1b4f7a8
Link:
https://www.unpac.me/results/a8fe87c6-ad54-4e49-a8c8-891e2dcc4f8c/
Parent samples :
5312214b15330113f6eab71565e1e3c7d1ee3b59daa6703c271aaf3b192e6809
02fca6ef5d9d8b1eb29f7ac8ea0573b504ea7f06c215e091791653b40fe1329a
cc53accc69b32c2507210ea70d1d56aa84dbe354a7f79577df180179ea797427
045a7318a9e2e550208c0c7e9fc805068df19fa73823ac3acaa049a46c4045ee
f2a883a0e4b01c72b0f063df3be5a0102e5c8fbaedc39c8d35c632b200599283
dffefbde27442b9095388b1871ffdc101c430b9a814138be4f962328a5b73fde
e0fb60da371912c158861c9660632d58e45cfcff12351cc9e03f497f319eb5de
904f69a4bed3844273cce1676e8920794815af4c1527e560bbc1bc44b5b8457a
SH256 hash:
23f6c24a5984c1bc1450f2d6eb32f3ece4e52bc275b4e9eea038db9f7f4f7717
MD5 hash:
e7faf95fe72009e95bc98007a9204934
SHA1 hash:
9f8157036a2370a35d228af8eef12e4742bb888c
Link:
https://www.unpac.me/results/a8fe87c6-ad54-4e49-a8c8-891e2dcc4f8c/
Malware family:
AgentTesla.v3
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/23f6c24a5984/report/overview.html
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/23f6c24a5984c1bc1450f2d6eb32f3ece4e52bc275b4e9eea038db9f7f4f7717

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:Ins_NSIS_Buer_Nov_2020_1
Create hunting rule
Author:Arkbird_SOLG
Description:Detect NSIS installer used for Buer loader

File information

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

Malspam

GuLoader

Executable exe 23f6c24a5984c1bc1450f2d6eb32f3ece4e52bc275b4e9eea038db9f7f4f7717

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/319314/

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