MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6f552ff62e714c1a5ae2aba7299b40954f8109763ed909d400f27e7e62470366. 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: 14


Intelligence 14 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 6f552ff62e714c1a5ae2aba7299b40954f8109763ed909d400f27e7e62470366
SHA3-384 hash: 99e25326d5e51a7086b78a1f929241d3387638bcee489ae92d473349a9cf8b088c55feb9151ba39ed6f86ec6de8fda80
SHA1 hash: e3f6b44c866a956f8f0ba517120d731db44984e3
MD5 hash: 624b6109dc13b20e582c887f6ce5d974
humanhash: vegan-stairway-minnesota-potato
File name:6f552ff62e714c1a5ae2aba7299b40954f8109763ed909d400f27e7e62470366
Download: download sample
Signature GuLoader
Create hunting rule
File size:360'920 bytes
First seen:2023-07-05 13:31:49 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 1f23f452093b5c1ff091a2f9fb4fa3e9 (274 x GuLoader, 36 x RemcosRAT, 23 x AgentTesla)
ssdeep 6144:TIw3EwpCEN6M8uC1D5lpjB0pUZmZLAoXFJ66WgBynSeJcpU2S:CHRj0pUmZLA8Wg3eJ
Threatray 981 similar samples on MalwareBazaar
TLSH T15674020431A4C767D3BF1FB19C3AABBE6E80BD411A9545071F60FF5E6832780891EB1A
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 d801f098e4609944 (3 x GuLoader, 1 x RemcosRAT)
Reporter adrian__luca
Tags:exe GuLoader signed

Code Signing Certificate

Organisation:
Issuer:
Algorithm:sha256WithRSAEncryption
Valid from:2023-01-06T00:13:29Z
Valid to:2026-01-05T00:13:29Z
Serial number: 14ec6446bcfef953cb0fc1d0cc1c55d826074255
Thumbprint Algorithm:SHA256
Thumbprint: 5a700fe3b4f7c7176383963246cb259c2ddd80a2cd7af18d3521383e80e8024a
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin
# of uploads :
1
# of downloads :
290
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
6f552ff62e714c1a5ae2aba7299b40954f8109763ed909d400f27e7e62470366
Verdict:
Suspicious activity
Analysis date:
2023-07-05 13:34:28 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/a215a392-b2e2-4228-aa64-fac6417da4a7

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Guloader
Create hunting rule
Link:
https://www.capesandbox.com/analysis/407741/
Detection(s):
SecuriteInfo.com.Trojan.GenericKD.67413540.31875.3693.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
Delayed reading of the file
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/95644/overview
Behaviour
MalwareBazaar
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
control lolbin overlay packed shell32
Link:
https://www.filescan.io/uploads/64a570d31aae5c95e186bb70/reports/1c5dacb8-ac89-445e-92f4-f9779dcb4877/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/6f552ff62e714c1a5ae2aba7299b40954f8109763ed909d400f27e7e62470366
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:
Malicious
Link:
https://analyze.intezer.com/analyses/3be8a1b2-6019-4598-bf9b-5c5d0b93653e
Result
Threat name:
GuLoader, FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad.spyw
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1267457
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 is not signed and drops a device driver
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)
Writes to foreign memory regions
Yara detected FormBook
Yara detected GuLoader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1267457 Sample: 0hEn6854Mo.exe Startdate: 05/07/2023 Architecture: WINDOWS Score: 100 26 www.swapshares.xyz 2->26 28 www.reopenhousekits.com 2->28 30 23 other IPs or domains 2->30 42 Snort IDS alert for network traffic 2->42 44 Malicious sample detected (through community Yara rule) 2->44 46 Antivirus detection for URL or domain 2->46 48 5 other signatures 2->48 8 0hEn6854Mo.exe 3 34 2->8         started        signatures3 process4 file5 24 C:\Users\user\AppData\Local\...\System.dll, PE32 8->24 dropped 52 Tries to detect Any.run 8->52 54 Sample is not signed and drops a device driver 8->54 12 colorcpl.exe 13 8->12         started        15 0hEn6854Mo.exe 2 6 8->15         started        signatures6 process7 dnsIp8 56 Tries to steal Mail credentials (via file / registry access) 12->56 58 Tries to harvest and steal browser information (history, passwords, etc) 12->58 60 Writes to foreign memory regions 12->60 68 3 other signatures 12->68 18 explorer.exe 3 1 12->18 injected 22 firefox.exe 12->22         started        38 drive.google.com 142.250.185.142, 443, 50124 GOOGLEUS United States 15->38 40 googlehosted.l.googleusercontent.com 172.217.16.193, 443, 50125 GOOGLEUS United States 15->40 62 Tries to detect Any.run 15->62 64 Maps a DLL or memory area into another process 15->64 66 Sample uses process hollowing technique 15->66 signatures9 process10 dnsIp11 32 www.12583gzt.skin 156.236.64.7, 50164, 50165, 50166 YISUCLOUDLTD-AS-APYISUCLOUDLTDHK Seychelles 18->32 34 www.reopenhousekits.com 198.44.187.13, 50135, 50136, 50137 VPSQUANUS United States 18->34 36 15 other IPs or domains 18->36 50 System process connects to network (likely due to code injection or exploit) 18->50 signatures12
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/6f552ff62e714c1a5ae2aba7299b40954f8109763ed909d400f27e7e62470366/
Threat name:
Win32.Trojan.NSISInject
Create hunting rule
Status:
Malicious
First seen:
2023-06-06 12:23:57 UTC
File Type:
PE (Exe)
Extracted files:
6
AV detection:
18 of 38 (47.37%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=n5ks75roofgbuwxcvotstg2asvhycclwh3mqtvaa6j7h4yshanta._file
Verdict:
malicious
Label(s):
cloudeye
Create hunting rule
Similar samples:
1cc4fab54263dfa842c80a72b78a9c223894264b9b4f25263d8fdc2f69def8a1
GuLoader
499f3776e1adb365489d0797796c5acf9c4b16bf69a2f14c5fce2bbaa8896aef
GuLoader
4d6ae0a40fcc30fab170c3e70dd5076253ddf9fa6ec0886d39cffbd9df99ae52
GuLoader
830399d0bb2b6696dcf818f38342f9fda9243105a7a29621d72c4351dd717773
GuLoader
8731774a17b8d40b743f7fd6ff83d45ca5890f8e1371be8a0755186f2fc3cda0
GuLoader
933722fac65bb4de9beeab946469fb6ba42c187a2ada644f781098320b6770b4
GuLoader
b028ced984ab94ba551b890e2b55645509a1bfd4f2970b592ada728de261a379
GuLoader
dd2da125c47646d0bdc47095f374272d0e81af7a0aa4fb726004a9b8e09a2a6f
GuLoader
e4b6f95557a2356d046da60a1ca4e52d302618108fae774b8128ffc0586366e0
GuLoader
+ 971 additional samples on MalwareBazaar
Result
Malware family:
guloader
Create hunting rule
Score:
  10/10
Tags:
family:guloader discovery downloader
Link:
https://tria.ge/reports/230705-qsyzcscf69/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Checks installed software on the system
Legitimate hosting services abused for malware hosting/C2
Checks QEMU agent file
Loads dropped DLL
Guloader,Cloudeye
Unpacked files
SH256 hash:
f004c568d305cd95edbd704166fcd2849d395b595dff814bcc2012693527ac37
MD5 hash:
8b3830b9dbf87f84ddd3b26645fed3a0
SHA1 hash:
223bef1f19e644a610a0877d01eadc9e28299509
Link:
https://www.unpac.me/results/3f17c3d9-d50c-43cc-ab5e-787a76c0a807/
SH256 hash:
6f552ff62e714c1a5ae2aba7299b40954f8109763ed909d400f27e7e62470366
MD5 hash:
624b6109dc13b20e582c887f6ce5d974
SHA1 hash:
e3f6b44c866a956f8f0ba517120d731db44984e3
Link:
https://www.unpac.me/results/3f17c3d9-d50c-43cc-ab5e-787a76c0a807/
Malware family:
GuLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/6f552ff62e71/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/6f552ff62e714c1a5ae2aba7299b40954f8109763ed909d400f27e7e62470366

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.

Cape
Cape
https://www.capesandbox.com/analysis/407741/

Comments