MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b55c1221a5a347fbbb9c80a65e2904fa915c6cf2553c742643ef0a4d4261059d. 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: 11


Intelligence 11 IOCs YARA File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b55c1221a5a347fbbb9c80a65e2904fa915c6cf2553c742643ef0a4d4261059d
SHA3-384 hash: 1481fad940f180bb776f6434a417e7147a7925583fc37f7e6428e0a368842987028e1bae5dad6b9ac861acadbde92c86
SHA1 hash: 9ba26d0b561a59e77aef6cdd40e6b73dc47214c0
MD5 hash: 9e7a71bf740f366be54765771ce9ffa9
humanhash: hydrogen-mexico-item-friend
File name:Ziraat Bankasi Swift Mesaji.exe
Download: download sample
Signature GuLoader
Create hunting rule
File size:408'165 bytes
First seen:2023-01-22 00:17:47 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 1f23f452093b5c1ff091a2f9fb4fa3e9 (276 x GuLoader, 37 x RemcosRAT, 23 x AgentTesla)
ssdeep 6144:zIw3Cwh2f6S/hPJ1bDPz0JGyCReaHtCDsGhHddaP+bl88nLTY+1E3ia:xy5RZHtCD3BBVLTYQ4
TLSH T133949ED1F294C8DBE46E46B35C2FA12025969A6990B0D20F66B7B71964F3353209FF0F
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 30f0dcf4d4ccf030 (5 x GuLoader)
Reporter Anonymous
Tags:exe GuLoader

Intelligence

File Origin
# of uploads :
1
# of downloads :
186
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Ziraat Bankasi Swift Mesaji.exe
Verdict:
Malicious activity
Analysis date:
2023-01-22 00:19:40 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/8ac61a26-277b-4806-8d44-c6aa7d188595

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/355482/
Result
Verdict:
Suspicious
Maliciousness:

Behaviour
Searching for the window
Creating a file in the %temp% directory
Creating a window
Creating a file
Delayed reading of the file
Searching for the Windows task manager window
Running batch commands
Creating a process with a hidden window
Sending a custom TCP request
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/62146/overview
Behaviour
MalwareBazaar
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
guloader overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/63cc80bb696b2d972573f4e9/reports/b139ddd2-9155-45ee-b465-6d3a1bc45e2d/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:
Malicious
Link:
https://analyze.intezer.com/analyses/d84b133c-8587-468b-958c-8a2d5d12bf2b
Result
Threat name:
GuLoader
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
92 / 100
Link:
https://www.joesandbox.com/analysis/1156341
Signature
Antivirus detection for URL or domain
Mass process execution to delay analysis
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Obfuscated command line found
Tries to detect Any.run
Yara detected GuLoader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 789073 Sample: Ziraat Bankasi Swift Mesaji.exe Startdate: 22/01/2023 Architecture: WINDOWS Score: 92 40 publichouse.ventures 2->40 42 ozla1a.shop 2->42 46 Multi AV Scanner detection for domain / URL 2->46 48 Antivirus detection for URL or domain 2->48 50 Multi AV Scanner detection for submitted file 2->50 52 3 other signatures 2->52 8 Ziraat Bankasi Swift Mesaji.exe 4 30 2->8         started        signatures3 process4 file5 34 C:\Users\user\Churnable\libbz2-1.dll, PE32+ 8->34 dropped 36 C:\Users\user\AppData\Local\...\nsExec.dll, PE32 8->36 dropped 38 C:\Users\user\AppData\Local\...\System.dll, PE32 8->38 dropped 54 Obfuscated command line found 8->54 56 Tries to detect Any.run 8->56 12 Ziraat Bankasi Swift Mesaji.exe 12 8->12         started        16 cmd.exe 8->16         started        18 cmd.exe 8->18         started        20 62 other processes 8->20 signatures6 process7 dnsIp8 44 publichouse.ventures 63.250.43.12, 443, 49853 NAMECHEAP-NETUS United States 12->44 58 Tries to detect Any.run 12->58 22 Conhost.exe 16->22         started        24 Conhost.exe 18->24         started        26 Conhost.exe 20->26         started        28 Conhost.exe 20->28         started        30 Conhost.exe 20->30         started        32 59 other processes 20->32 signatures9 process10
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b55c1221a5a347fbbb9c80a65e2904fa915c6cf2553c742643ef0a4d4261059d/
Threat name:
Win32.Trojan.Guloader
Create hunting rule
Status:
Malicious
First seen:
2023-01-11 14:36:12 UTC
AV detection:
19 of 26 (73.08%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wvobeinfund7xo44qctf4kie7kivy3hsku6hijsd54fe2qtbawoq._file
Verdict:
malicious
Result
Malware family:
n/a
Score:
  7/10
Tags:
discovery
Link:
https://tria.ge/reports/230122-allsfsee39/
Behaviour
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops file in Program Files directory
Drops file in Windows directory
Drops file in System32 directory
Checks installed software on the system
Loads dropped DLL
Unpacked files
SH256 hash:
938580b466533dfa1461e9858fd106b60e1a52b713380915cc03afd3e4b4573c
MD5 hash:
98bdb37511634dad8d1236d91d373b26
SHA1 hash:
778cf74b4f8860cc378fa4e61aeba318197783ce
Link:
https://www.unpac.me/results/3138e6c0-643e-42c2-a04b-ad0344a99b98/
SH256 hash:
f004c568d305cd95edbd704166fcd2849d395b595dff814bcc2012693527ac37
MD5 hash:
8b3830b9dbf87f84ddd3b26645fed3a0
SHA1 hash:
223bef1f19e644a610a0877d01eadc9e28299509
Link:
https://www.unpac.me/results/3138e6c0-643e-42c2-a04b-ad0344a99b98/
SH256 hash:
f7d98be26c813724c7cb673b53475fe660d3ef4f9930d57a550c91578c660e91
MD5 hash:
723646252e79cbb15c7817360f93a6d2
SHA1 hash:
c9ce61d71b7377456ab49c823fc756336b01f7b5
Link:
https://www.unpac.me/results/3138e6c0-643e-42c2-a04b-ad0344a99b98/
SH256 hash:
b55c1221a5a347fbbb9c80a65e2904fa915c6cf2553c742643ef0a4d4261059d
MD5 hash:
9e7a71bf740f366be54765771ce9ffa9
SHA1 hash:
9ba26d0b561a59e77aef6cdd40e6b73dc47214c0
Link:
https://www.unpac.me/results/3138e6c0-643e-42c2-a04b-ad0344a99b98/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.53
Link:
https://yomi.yoroi.company/submissions/b55c1221a5a347fbbb9c80a65e2904fa915c6cf2553c742643ef0a4d4261059d

File information

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

Malspam

GuLoader

Executable exe b55c1221a5a347fbbb9c80a65e2904fa915c6cf2553c742643ef0a4d4261059d

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/355482/

Comments