MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 856c3482c119fdecb777d14ef351c90a24a045cf8da8cafbb2d229619cb11bbf. 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 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 856c3482c119fdecb777d14ef351c90a24a045cf8da8cafbb2d229619cb11bbf
SHA3-384 hash: 4c64816dc680db096d98dcda17a644799594ebf1ffbb5342473cf2c2ee282c44ca0c0928d1c3d71daadebc8550cdba8e
SHA1 hash: 0780420e2f12a4cb8e6f3fb717afba2ea7e102e0
MD5 hash: 7211ccbff4e2557e067609dcbf6839ae
humanhash: music-emma-bravo-october
File name:Ziraat Bankasi Swift Mesaji.exe
Download: download sample
Signature GuLoader
Create hunting rule
File size:300'283 bytes
First seen:2023-03-27 10:28:47 UTC
Last seen:2023-03-30 07:56:23 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 5f0c714c36e6cc016b3a1f4bc86559e4 (199 x GuLoader, 14 x Formbook, 4 x AgentTesla)
ssdeep 6144:H6+/tV2ye/x3BfF+WL/uVQXXXv+fHLhTySnjprxwPLbQ7:Pn2ye/DMWL2VCv+frh+w9W87
Threatray 938 similar samples on MalwareBazaar
TLSH T1DF5422523BA2C573C2722731897F73F6DBE1A86030A0951727995EBEB7BE2C1411F252
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 abuse_ch
Tags:exe geo GuLoader TUR ZiraatBank


Avatar
abuse_ch
Payload URL:
http://34.138.169.8/wp-content/themes/seotheme/RenHLfAoTIbu98.bin

Intelligence

File Origin
# of uploads :
2
# of downloads :
241
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:
2023-03-27 10:40:01 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/734db4e3-a562-45c6-919b-741d5030499b

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/377853/
Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
Searching for the window
Creating a file in the %temp% subdirectories
Creating a file
Creating a file in the %AppData% directory
Delayed reading of the file
Sending a custom TCP request
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
buer guloader overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/64216ff1318b503355a8c5d1/reports/1106cc29-88f5-4707-92d5-fd1b27a0db01/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_90%
Link:
https://www.hybrid-analysis.com/sample/856c3482c119fdecb777d14ef351c90a24a045cf8da8cafbb2d229619cb11bbf
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/55a5848d-4814-4a2e-96a9-9d726270bde4
Result
Threat name:
FormBook, GuLoader
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1202609
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Machine Learning detection for sample
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)
Modifies the prolog of user mode functions (user mode inline hooks)
Multi AV Scanner detection for submitted file
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
Yara detected FormBook
Yara detected GuLoader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 835514 Sample: Ziraat_Bankasi_Swift_Mesaji.exe Startdate: 27/03/2023 Architecture: WINDOWS Score: 100 36 www.sneakersuomo.com 2->36 38 www.peterslawonline.com 2->38 40 21 other IPs or domains 2->40 58 Snort IDS alert for network traffic 2->58 60 Malicious sample detected (through community Yara rule) 2->60 62 Antivirus detection for URL or domain 2->62 64 6 other signatures 2->64 11 Ziraat_Bankasi_Swift_Mesaji.exe 5 57 2->11         started        signatures3 process4 file5 32 C:\Users\user\...\MapiProxy_InUse.dll, PE32 11->32 dropped 34 C:\Users\user\AppData\Local\...\System.dll, PE32 11->34 dropped 72 Tries to detect Any.run 11->72 15 Ziraat_Bankasi_Swift_Mesaji.exe 6 11->15         started        signatures6 process7 dnsIp8 48 34.138.169.8, 49805, 80 ATGS-MMD-ASUS United States 15->48 50 Modifies the context of a thread in another process (thread injection) 15->50 52 Tries to detect Any.run 15->52 54 Maps a DLL or memory area into another process 15->54 56 2 other signatures 15->56 19 explorer.exe 4 1 15->19 injected signatures9 process10 dnsIp11 42 www.freshteak.com 185.53.179.173, 49818, 49851, 80 TEAMINTERNET-ASDE Germany 19->42 44 www.ameriealthcaritasfl.com 185.53.179.174, 49835, 80 TEAMINTERNET-ASDE Germany 19->44 46 11 other IPs or domains 19->46 66 System process connects to network (likely due to code injection or exploit) 19->66 23 svchost.exe 19->23         started        26 autoconv.exe 19->26         started        signatures12 process13 signatures14 68 Modifies the context of a thread in another process (thread injection) 23->68 70 Maps a DLL or memory area into another process 23->70 28 cmd.exe 1 23->28         started        process15 process16 30 conhost.exe 28->30         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/856c3482c119fdecb777d14ef351c90a24a045cf8da8cafbb2d229619cb11bbf/
Threat name:
Win32.Trojan.Guloader
Create hunting rule
Status:
Suspicious
First seen:
2023-03-27 10:29:08 UTC
File Type:
PE (Exe)
Extracted files:
19
AV detection:
15 of 24 (62.50%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=qvwdjawbdh66zn3x2fhpguojbiskaroprwumv65s2iuwdhfrdo7q._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
3a5125b535a9d3aec7608c040173cea1e3c12cb855ec5bad90847406022dfe98
GuLoader
44bf46793f182055af9af6112cfd1236073c6ab0c879d0cffb49154e5c1c85dd
GuLoader
4b2c21ea5f69768b3fa702304683c99e18dea0823d0c8585cec84be4210f08da
GuLoader
60f594736fc96f0657680d022bd9b9117a4a7d08c1e80812b29d64fa69f814a3
GuLoader
9739b15bd8493e99e281d62d213ddc4cce684b1e833af4634932c57a669035fc
GuLoader
a3a3e10ea96961c3e5cc533be186a83f18fea89a5beb3074b04f4ee402c5f85f
GuLoader
ab080c6c62ba54b560f3feb271626ae0fe1804834f51eeac008f576f4e1299a0
GuLoader
c6dd2982f43096248e29e645e15fc4aff780b86932b517c33a776325382f1515
GuLoader
d202c27ed2da0f1864f0ec0d760a0afb406b27b637ced263cd0962385786eab0
GuLoader
e75b09e0fc7a0826ccea5469d66443bfcc421b1b6246e9a0d13bb38e21333e56
GuLoader
+ 928 additional samples on MalwareBazaar
Result
Malware family:
guloader
Create hunting rule
Score:
  10/10
Tags:
family:formbook family:guloader campaign:mi94 discovery downloader rat spyware stealer trojan
Link:
https://tria.ge/reports/230327-mjazdsfa91/
Behaviour
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Enumerates physical storage devices
Drops file in Windows directory
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Checks installed software on the system
Checks QEMU agent file
Loads dropped DLL
Formbook payload
Formbook
Guloader,Cloudeye
Unpacked files
SH256 hash:
35e842c6e9ecb8b9471b72b9996fc6abf40ea2948917a5d30c1e975a6382ca78
MD5 hash:
31a856773931ac221f41ad9ada1aa30f
SHA1 hash:
9abdcfb2f25335c0498f9aaa140f7f89c0337785
Link:
https://www.unpac.me/results/4cb10b45-6927-4fd2-b9dc-79fe9fb2c45d/
SH256 hash:
856c3482c119fdecb777d14ef351c90a24a045cf8da8cafbb2d229619cb11bbf
MD5 hash:
7211ccbff4e2557e067609dcbf6839ae
SHA1 hash:
0780420e2f12a4cb8e6f3fb717afba2ea7e102e0
Link:
https://www.unpac.me/results/4cb10b45-6927-4fd2-b9dc-79fe9fb2c45d/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/856c3482c119/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
GuLoader
Score:
0.90
Link:
https://yomi.yoroi.company/submissions/856c3482c119fdecb777d14ef351c90a24a045cf8da8cafbb2d229619cb11bbf

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:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns

File information

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

Malspam

GuLoader

Executable exe 856c3482c119fdecb777d14ef351c90a24a045cf8da8cafbb2d229619cb11bbf

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2581269/
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/377853/

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