MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a0b0db8c6dc77550bb990118e37e3dda30255f3abd39c04089bb120887d225ce. 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: 13


Intelligence 13 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a0b0db8c6dc77550bb990118e37e3dda30255f3abd39c04089bb120887d225ce
SHA3-384 hash: 361355a53121920c2bdcd099f25f13f2bdc730f84ac5e26c33cbbb0a60cc3b1487116bd99889a4f4cb70cec7ee461f37
SHA1 hash: 08a9ea5bf342242d323be7a1a14eb04d66e626dc
MD5 hash: c43de45637dac8da880ef4f20909b194
humanhash: six-failed-lactose-music
File name:Gaelde2.exe
Download: download sample
Signature GuLoader
Create hunting rule
File size:1'229'552 bytes
First seen:2023-09-20 13:21:08 UTC
Last seen:2023-09-21 06:52:00 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 3abe302b6d9a1256e6a915429af4ffd2 (271 x GuLoader, 38 x Formbook, 25 x Loki)
ssdeep 24576:klY4e8txwpsmTBmRr++qiOKpTnDeSsp1jQW3GwiAtsp1kt4KdAZJO3FqdPH5oUPL:xcwGAARrtsKpTYpyW3GwY6tMqOzD
Threatray 2'026 similar samples on MalwareBazaar
TLSH T16F453302429D9B32F39761B24D963D1FCE91CF1420B537822F22BE91D876AF5E91A317
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 682e6bb3cb646c81 (4 x GuLoader, 1 x Formbook)
Reporter TeamDreier
Tags:exe GuLoader signed

Code Signing Certificate

Organisation:
Issuer:
Algorithm:sha256WithRSAEncryption
Valid from:2023-02-12T02:41:07Z
Valid to:2026-02-11T02:41:07Z
Serial number: 08e06d49c1fc016888ac4961a4e76d7e91a13f8a
Thumbprint Algorithm:SHA256
Thumbprint: 3d71a46921aae005d8818c72eb92d6f5224c75c16d23346a401654ac030efcae
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin
# of uploads :
3
# of downloads :
287
Origin country :
DK DK
Vendor Threat Intelligence
Malware family:
guloader
Create hunting rule
ID:
1
File name:
RV WARNING FACTURA.msg
Verdict:
Malicious activity
Analysis date:
2023-09-20 11:45:09 UTC
Tags:
guloader
Link:
https://app.any.run/tasks/a3dbe896-15d5-4862-82b5-29cb666cc4cb

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/450036/
Detection(s):
SecuriteInfo.com.Win32.SuspectCrc.18624.21916.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
Creating a file
Creating a file in the %temp% subdirectories
Sending a custom TCP request
Gathering data
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
control lolbin overlay packed shell32
Link:
https://www.filescan.io/uploads/650af1fc32ffdb7a7a0d15fe/reports/899dfaf3-4329-4266-b28c-e8aad0348cfc/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/a0b0db8c6dc77550bb990118e37e3dda30255f3abd39c04089bb120887d225ce
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/4bf135a6-3f96-4805-85ae-58fe52cc54da
Result
Threat name:
GuLoader, FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad.spyw
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1311568
Signature
Antivirus detection for URL or domain
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Modifies the context of a thread in another process (thread injection)
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Snort IDS alert for network traffic
System process connects to network (likely due to code injection or exploit)
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 Mail credentials (via file / registry access)
Uses netstat to query active network connections and open ports
Writes to foreign memory regions
Yara detected FormBook
Yara detected GuLoader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1311568 Sample: Gaelde2.exe Startdate: 20/09/2023 Architecture: WINDOWS Score: 100 34 www.vevo-verify.com 2->34 36 www.transportlogistcs.com 2->36 38 24 other IPs or domains 2->38 52 Snort IDS alert for network traffic 2->52 54 Malicious sample detected (through community Yara rule) 2->54 56 Antivirus detection for URL or domain 2->56 58 5 other signatures 2->58 10 Gaelde2.exe 1 38 2->10         started        signatures3 process4 file5 32 C:\Users\user\AppData\Local\...\System.dll, PE32 10->32 dropped 70 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 10->70 72 Tries to detect Any.run 10->72 14 Gaelde2.exe 6 10->14         started        signatures6 process7 dnsIp8 46 googlehosted.l.googleusercontent.com 142.251.16.132, 443, 49989 GOOGLEUS United States 14->46 48 drive.google.com 172.253.63.102, 443, 49988 GOOGLEUS United States 14->48 74 Modifies the context of a thread in another process (thread injection) 14->74 76 Tries to detect Any.run 14->76 78 Maps a DLL or memory area into another process 14->78 80 Queues an APC in another process (thread injection) 14->80 18 RAVCpl64.exe 14->18 injected signatures9 process10 signatures11 50 Sample uses process hollowing technique 18->50 21 NETSTAT.EXE 13 18->21         started        process12 signatures13 60 Tries to steal Mail credentials (via file / registry access) 21->60 62 Tries to harvest and steal browser information (history, passwords, etc) 21->62 64 Writes to foreign memory regions 21->64 66 3 other signatures 21->66 24 explorer.exe 2 1 21->24 injected 28 firefox.exe 21->28         started        30 OszqiYXHBXMQkRhKsqHmCZ.exe 21->30 injected process14 dnsIp15 40 www.d356.top 154.197.7.163, 80 YISUCLOUDLTD-AS-APYISUCLOUDLTDHK Seychelles 24->40 42 www.gaichu-force.site 103.141.96.129, 50025, 50026, 50027 VECTANTARTERIANetworksCorporationJP Japan 24->42 44 14 other IPs or domains 24->44 68 System process connects to network (likely due to code injection or exploit) 24->68 signatures16
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a0b0db8c6dc77550bb990118e37e3dda30255f3abd39c04089bb120887d225ce/
Threat name:
Win32.Trojan.Generic
Create hunting rule
Status:
Malicious
First seen:
2023-09-20 09:13:39 UTC
File Type:
PE (Exe)
Extracted files:
13
AV detection:
14 of 37 (37.84%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=ucynxddny52vbo4zaemog7r53iyckxz2xu44aqejxmjarb6sexha._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
0046d4926a496ea3554ee394b36f77d7ba5f615718bd73b9139f9622d1e11018
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0694c6c0a52d6281f7ba9acc9de0549be7fd5bdb35e857609fc7adbfcda8c848
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07084edb27452baade13a450954976ddc8e774df3b7d143d3242275d89d1b586
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10107fb1848f1956607b0d3191a5dd2db01e027196990a652638b1aebaa2f879
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1b29005d1fa110dfb5b924c879e64d7d4cce8af163f9e6853e4bbda2c298acf0
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77353f06427f5e7d0e4c28e4d5690700a2cf6789edc0f9c51682dd20bb65bf78
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8249e88d3b270dba037eae0a0308f828f87e6a5c2c61678ef4943293cbe26fb3
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db19a753c3b30fefe4c2cad16fc3646fa1c4d4d3f662d1fc6e58fc8b61d44e57
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dc5f7d89ab2465597ff7fa9f544326613aeaab2afa6e2e457ba5fc0da15bd450
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f5d798da1badf02fe91c0a25702a09036570cc883128c676ba1cbc00a5381fdd
GuLoader
+ 2'016 additional samples on MalwareBazaar
Result
Malware family:
guloader
Create hunting rule
Score:
  10/10
Tags:
family:guloader downloader
Link:
https://tria.ge/reports/230920-ql79fsge3y/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Legitimate hosting services abused for malware hosting/C2
Checks QEMU agent file
Checks computer location settings
Loads dropped DLL
Guloader,Cloudeye
Unpacked files
SH256 hash:
a0cac4cf4852895619bc7743ebeb89f9e4927ccdb9e66b1bcd92a4136d0f9c77
MD5 hash:
b0c77267f13b2f87c084fd86ef51ccfc
SHA1 hash:
f7543f9e9b4f04386dfbf33c38cbed1bf205afb3
Link:
https://www.unpac.me/results/4a781b69-75cd-4235-a5e3-358f1806f086/
SH256 hash:
a0b0db8c6dc77550bb990118e37e3dda30255f3abd39c04089bb120887d225ce
MD5 hash:
c43de45637dac8da880ef4f20909b194
SHA1 hash:
08a9ea5bf342242d323be7a1a14eb04d66e626dc
Link:
https://www.unpac.me/results/4a781b69-75cd-4235-a5e3-358f1806f086/
Malware family:
GuLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/a0b0db8c6dc7/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/a0b0db8c6dc77550bb990118e37e3dda30255f3abd39c04089bb120887d225ce

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
Rule name:PE_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 a0b0db8c6dc77550bb990118e37e3dda30255f3abd39c04089bb120887d225ce

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/450036/

Comments