MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ff2c1d0bdc27e3137837afac350c6e433e86d4523f32555b3b59de1aa0981c53. 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: ff2c1d0bdc27e3137837afac350c6e433e86d4523f32555b3b59de1aa0981c53
SHA3-384 hash: 1e1ede0ab26d46c7bcbf66d828268db3b469c05b6cf5adbd2b1d647e6bdb2a9d60a161252defb981f59978db5dc57a27
SHA1 hash: 2640a826c9dfd711f2f616a5df71d85f72e8e550
MD5 hash: ffc82f4fa6f4014a8c01951f3c548329
humanhash: solar-hamper-eleven-speaker
File name:ffc82f4fa6f4014a8c01951f3c548329.exe
Download: download sample
Signature GuLoader
Create hunting rule
File size:205'088 bytes
First seen:2022-11-15 15:16:28 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 57e98d9a5a72c8d7ad8fb7a6a58b3daf (60 x GuLoader, 20 x AZORult, 12 x RemcosRAT)
ssdeep 6144:l57VTGMFFGPZX4LsOJc2v8QiuPMAVoSGB:XVTeXPIXiKMEPu
Threatray 18'129 similar samples on MalwareBazaar
TLSH T1571401222AA1D8B7DB6704B51BE6CE0BEFB5D5014111A74F27F06A997D20383DD1F28E
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 b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla)
Reporter abuse_ch
Tags:exe GuLoader signed

Code Signing Certificate

Organisation:
Issuer:
Algorithm:sha256WithRSAEncryption
Valid from:2022-03-11T05:37:18Z
Valid to:2025-03-10T05:37:18Z
Serial number: 340b347fa2a2bf9f
Thumbprint Algorithm:SHA256
Thumbprint: 5be8a352b66985eb8adad4e917fbda29173e356ee5732bb3841cf7fe9888e2d1
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin
# of uploads :
1
# of downloads :
203
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
guloader
Create hunting rule
ID:
1
File name:
RFQ SAMPLE FILES AND DATA SHEETS.xls
Verdict:
Malicious activity
Analysis date:
2022-11-15 11:29:48 UTC
Tags:
macros opendir loader exploit cve-2017-11882 guloader
Link:
https://app.any.run/tasks/6848a963-e53e-45da-bc8d-2146f14388c8

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/334387/
Detection(s):
SecuriteInfo.com.Trojan.PWS.Banker1.30494.UNOFFICIAL
Create hunting rule

Result
Verdict:
Suspicious
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a file in the Windows subdirectories
Creating a window
Creating a file in the %AppData% subdirectories
Creating a file
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
buer overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/6373ad6ef75d59fef0b978ea/reports/65d97744-33c0-420e-9a21-e59e88350668/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/7844c213-3ae4-4b55-88e7-10f1d006ea3e
Result
Threat name:
FormBook, GuLoader
Create hunting rule
Detection:
malicious
Classification:
troj.evad.spyw
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1113924
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
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)
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 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: 746624 Sample: vks5KimT6y.exe Startdate: 15/11/2022 Architecture: WINDOWS Score: 100 33 www.yigangtie.com 2->33 35 www.xavi.wtf 2->35 37 26 other IPs or domains 2->37 47 Snort IDS alert for network traffic 2->47 49 Malicious sample detected (through community Yara rule) 2->49 51 Antivirus detection for URL or domain 2->51 53 3 other signatures 2->53 10 vks5KimT6y.exe 1 31 2->10         started        signatures3 process4 file5 31 C:\Users\user\AppData\Local\...\System.dll, PE32 10->31 dropped 65 Tries to detect Any.run 10->65 14 vks5KimT6y.exe 6 10->14         started        signatures6 process7 dnsIp8 45 semetambelaj.com 192.227.171.66, 49832, 80 AS-COLOCROSSINGUS United States 14->45 67 Modifies the context of a thread in another process (thread injection) 14->67 69 Tries to detect Any.run 14->69 71 Maps a DLL or memory area into another process 14->71 73 2 other signatures 14->73 18 explorer.exe 14->18 injected 22 RAVCpl64.exe 14->22 injected signatures9 process10 dnsIp11 39 www.bhradvocates.com 162.210.96.125, 49939, 49940, 49941 STEADFASTUS United States 18->39 41 www.jonquedragonpearl.com 156.254.66.97, 49845, 49846, 49847 SKHT-ASShenzhenKatherineHengTechnologyInformationCo Seychelles 18->41 43 17 other IPs or domains 18->43 55 System process connects to network (likely due to code injection or exploit) 18->55 24 cmstp.exe 13 18->24         started        27 autoconv.exe 22->27         started        signatures12 process13 signatures14 57 Tries to steal Mail credentials (via file / registry access) 24->57 59 Tries to harvest and steal browser information (history, passwords, etc) 24->59 61 Writes to foreign memory regions 24->61 63 3 other signatures 24->63 29 firefox.exe 24->29         started        process15
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/ff2c1d0bdc27e3137837afac350c6e433e86d4523f32555b3b59de1aa0981c53/
Threat name:
Win32.Trojan.Guloader
Create hunting rule
Status:
Malicious
First seen:
2022-11-15 10:58:39 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
16 of 26 (61.54%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=74wb2c64e7rrg6bxv6wdkddoim7invcsh4zfkwz3lhpbvieydrjq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
cloudeye
Create hunting rule
Similar samples:
0817943597641dc344c58a61071528b41db751494afc47a2e94ff39e8c6b9907
GuLoader
0ef758cdcdaa95ecd6689cf13a719dd95def885bd1c5812295c2ed65d34b735d
GuLoader
718a4a857daa174f252381d376a10addf1dc549802443df0c55236db07745180
GuLoader
9994b20e500ad5c9973f3627d3b9225b7b7b6f9ef2c5dd37b93d71a8e479007c
GuLoader
b1ce73dac896a841321b1f502bcc32313de930cd0e5561874e51e80dc7cb06cc
GuLoader
d4c48b5aefc7225b307e2e8c3f2d158b14fc6b736c83d36dc36a9d7c2e6eec29
GuLoader
e69029315442a5ee81db93bf71e4e536cd0b2ca3124ea149d9ce2699fa6a0da1
GuLoader
+ 18'119 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  7/10
Tags:
n/a
Link:
https://tria.ge/reports/221115-sn2kssac8z/
Behaviour
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops file in Windows directory
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Checks QEMU agent file
Loads dropped DLL
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/e2673d4a-d12d-4840-a22e-d51a7b1eb7dd
Unpacked files
SH256 hash:
a1390a78533c47e55cc364e97af431117126d04a7faed49390210ea3e89dd0e1
MD5 hash:
fbe295e5a1acfbd0a6271898f885fe6a
SHA1 hash:
d6d205922e61635472efb13c2bb92c9ac6cb96da
Link:
https://www.unpac.me/results/6baa586a-c865-407b-8ca1-b33a03718cc9/
SH256 hash:
ff2c1d0bdc27e3137837afac350c6e433e86d4523f32555b3b59de1aa0981c53
MD5 hash:
ffc82f4fa6f4014a8c01951f3c548329
SHA1 hash:
2640a826c9dfd711f2f616a5df71d85f72e8e550
Link:
https://www.unpac.me/results/6baa586a-c865-407b-8ca1-b33a03718cc9/
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/ff2c1d0bdc27e3137837afac350c6e433e86d4523f32555b3b59de1aa0981c53

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.

Web download

GuLoader

Executable exe ff2c1d0bdc27e3137837afac350c6e433e86d4523f32555b3b59de1aa0981c53

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2412747/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/334387/

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