MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 40d06aab533c42b7790492f57009b3b2b1ab8d3b47c04eb44244959b450966e2. 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: 8


Intelligence 8 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 40d06aab533c42b7790492f57009b3b2b1ab8d3b47c04eb44244959b450966e2
SHA3-384 hash: d8a1600605f4395b6f7da0ab71ecf5acff931259da89038dd3c2232e74da1dd3a7233c3a012657bece72f516b0137692
SHA1 hash: 8f86a78d0f69045d1e21bef51f3a8fed0046a540
MD5 hash: 7ebf779ea8afbc7ac4b42b0de05f4791
humanhash: snake-illinois-speaker-saturn
File name:40d06aab533c42b7790492f57009b3b2b1ab8d3b47c04eb44244959b450966e2
Download: download sample
Signature GuLoader
Create hunting rule
File size:195'880 bytes
First seen:2022-12-06 11:53:29 UTC
Last seen:2022-12-06 13:33:57 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 5f0c714c36e6cc016b3a1f4bc86559e4 (199 x GuLoader, 14 x Formbook, 4 x AgentTesla)
ssdeep 3072:IkBGWOsTIJgIDU5A/cpub1ZSu4CYCPJEjJtGuxdP1XRut8b0Ma8D4CGWGWp9k49P:I1ssjT3R4CYChajxdtButWD49Wpll4tm
Threatray 4'319 similar samples on MalwareBazaar
TLSH T1B514125627A1C8BBC6630AB04CFC963EEFF7C18115554B4B13341F5A3B937964A2E293
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 b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla)
Reporter adrian__luca
Tags:exe GuLoader signed

Code Signing Certificate

Organisation:Onkos
Issuer:Onkos
Algorithm:sha256WithRSAEncryption
Valid from:2022-10-04T00:54:44Z
Valid to:2025-10-03T00:54:44Z
Serial number: -3d454ac8968eca4c
Thumbprint Algorithm:SHA256
Thumbprint: cdc907034473967bcfcdcce4e7953a12140561c3bc6b0868d7d4edc082a9f452
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin
# of uploads :
2
# of downloads :
178
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
40d06aab533c42b7790492f57009b3b2b1ab8d3b47c04eb44244959b450966e2
Verdict:
No threats detected
Analysis date:
2022-12-06 11:53:15 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/60204d73-794d-4629-b2ef-e56b7f8c1eab

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/343389/
Detection(s):
SecuriteInfo.com.Win32.Evo-gen.4396.9605.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% subdirectories
Creating a process from a recently created file
Searching for the window
Launching a process
Sending a custom TCP request
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
buer overlay packed powershell shell32.dll
Link:
https://www.filescan.io/uploads/638f2d5bd4d7598ad90499fb/reports/c12388ca-d3dd-4448-8567-75d255f1bd80/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/919e6b99-96f8-48fd-a70d-89a24b783678
Result
Threat name:
GuLoader
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
84 / 100
Link:
https://www.joesandbox.com/analysis/1128879
Signature
Antivirus detection for URL or domain
Multi AV Scanner detection for submitted file
Obfuscated command line found
Suspicious powershell command line found
Tries to detect Any.run
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Very long command line found
Yara detected GuLoader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 761602 Sample: mObOIwrhtD.exe Startdate: 06/12/2022 Architecture: WINDOWS Score: 84 27 carsal.mx 2->27 33 Antivirus detection for URL or domain 2->33 35 Multi AV Scanner detection for submitted file 2->35 37 Yara detected GuLoader 2->37 39 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 2->39 9 mObOIwrhtD.exe 17 2->9         started        signatures3 process4 file5 25 C:\Users\user\AppData\...\Landholder.Ind, ASCII 9->25 dropped 43 Suspicious powershell command line found 9->43 45 Obfuscated command line found 9->45 13 powershell.exe 12 9->13         started        signatures6 process7 signatures8 47 Very long command line found 13->47 16 powershell.exe 13 13->16         started        19 conhost.exe 13->19         started        process9 signatures10 31 Tries to detect Any.run 16->31 21 ieinstal.exe 12 16->21         started        process11 dnsIp12 29 carsal.mx 192.185.161.136, 443, 49806, 49808 UNIFIEDLAYER-AS-1US United States 21->29 41 Tries to detect Any.run 21->41 signatures13
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/40d06aab533c42b7790492f57009b3b2b1ab8d3b47c04eb44244959b450966e2/
Threat name:
Win32.Trojan.NSISInject
Create hunting rule
Status:
Malicious
First seen:
2022-11-23 06:48:13 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
15 of 21 (71.43%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=idigvk2thrblo6iesl2xacntwky2xdj3i7ae5ncciskzwrijm3ra._file
Verdict:
malicious
Similar samples:
083a3fd47e58d83c6a4265bcb00f93d30cc2901d6637ae9648411e83d3ad5017
GuLoader
0e9724b725cf574df3ca3a50ae3950526d60a1158616ee4da35bb6213b5bd0ef
GuLoader
121dae49dacf1290b5ef4de577a01161b523d9edf8564fa765e7c00ac6c3b862
GuLoader
1e585f994bb693da928d592c8e48e4c03b9926a9913c139debae3dc624349506
GuLoader
9eb7c4ee977f3961ee314e89468f793611fa8c5c95c1f73fdff318b674d6919f
GuLoader
a31a7fd189650d41860ac0f0ba51bbcf8f2150c6b5aa066d93a02723d55ae6bd
GuLoader
a8449481b03e016f68c8bf7c4db52348c29f4a0d85a7a78ebccfd7df8e1230ce
GuLoader
de7f527f4e29a783a25719a25a228129a817f58ba88a82da92a7bf97fe0cfb9e
GuLoader
e8d2b06d6d1c4b0b94597780e3a5cf9c88e93791253ff7a1202d73bb9423365d
GuLoader
+ 4'309 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  3/10
Tags:
n/a
Link:
https://tria.ge/reports/221206-n2v8qahh8x/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Unpacked files
SH256 hash:
40d06aab533c42b7790492f57009b3b2b1ab8d3b47c04eb44244959b450966e2
MD5 hash:
7ebf779ea8afbc7ac4b42b0de05f4791
SHA1 hash:
8f86a78d0f69045d1e21bef51f3a8fed0046a540
Link:
https://www.unpac.me/results/ef46acb5-8352-4b7d-9bac-a2a03bed2c5d/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.74
Link:
https://yomi.yoroi.company/submissions/40d06aab533c42b7790492f57009b3b2b1ab8d3b47c04eb44244959b450966e2

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.

Cape
Cape
https://www.capesandbox.com/analysis/343389/

Comments