MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ab8fa0dda1daa490598653ad71df25b26af3dc5b54434c68bccdff3eda13f96e. 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


Formbook


Vendor detections: 19


Intelligence 19 IOCs YARA 8 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ab8fa0dda1daa490598653ad71df25b26af3dc5b54434c68bccdff3eda13f96e
SHA3-384 hash: acaaec4eda3667984e933f4a7b7368b6d4b5a3d593586a5baf537e54ea73df2cd788fb70870531fef6dc253ebdcf2aa6
SHA1 hash: 9a98592a83e9d3ba1dcbe52000e63f9940270fd7
MD5 hash: 7c85964484c4e3471124dd4dd5ef34df
humanhash: black-blue-crazy-video
File name:7c85964484c4e3471124dd4dd5ef34df
Download: download sample
Signature Formbook
Create hunting rule
File size:300'089 bytes
First seen:2023-03-28 07:09:20 UTC
Last seen:2023-03-28 10:32:40 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 61259b55b8912888e90f516ca08dc514 (1'059 x Formbook, 741 x AgentTesla, 431 x GuLoader)
ssdeep 6144:/Ya6ecZBUdAW0HmqIUjrBxEsjolC06nbGY9kbdVMZYIOS+Fgoka:/YQnd+GaLEsfnbGKkDax5+Vka
TLSH T11A54121669E1C46EF96343B15D385E2B3BEBF51225EA0B8F13514A0D7E32291DE0E363
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 zbetcheckin
Tags:32 exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
247
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
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ID:
1
File name:
Purchase Order - R0136983.xls
Verdict:
Malicious activity
Analysis date:
2023-03-28 06:22:18 UTC
Tags:
exploit cve-2017-11882 opendir loader formbook xloader trojan stealer
Link:
https://app.any.run/tasks/3cd53b12-bfa1-4970-be8b-1979ebe8cdca

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/378106/
Detection(s):
Sanesecurity.Malware.28947.BadP.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a window
Creating a process from a recently created file
Searching for synchronization primitives
Launching a process
Сreating synchronization primitives
Launching cmd.exe command interpreter
Sending a custom TCP request
Reading critical registry keys
Setting browser functions hooks
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Unauthorized injection to a system process
Unauthorized injection to a browser process
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/75365/overview
Behaviour
MalwareBazaar
Verdict:
Malicious
Threat level:
  10/10
Confidence:
86%
Tags:
comodo nemesis overlay packed remcos shell32.dll
Link:
https://www.filescan.io/uploads/642292d039ca37cf45d03f86/reports/50932487-242b-42b1-82eb-2403af27565e/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/ab8fa0dda1daa490598653ad71df25b26af3dc5b54434c68bccdff3eda13f96e
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.
Malware family:
Formbook
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/b35da580-6385-427b-8218-28610e3b07a2
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1203219
Signature
C2 URLs / IPs found in malware configuration
Detected unpacking (changes PE section rights)
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
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 dropped file
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
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 836141 Sample: 5mTpQCJu87.exe Startdate: 28/03/2023 Architecture: WINDOWS Score: 100 47 Malicious sample detected (through community Yara rule) 2->47 49 Multi AV Scanner detection for submitted file 2->49 51 Yara detected FormBook 2->51 53 3 other signatures 2->53 11 5mTpQCJu87.exe 19 2->11         started        process3 file4 31 C:\Users\user\AppData\Local\...\gpphbrp.exe, PE32 11->31 dropped 14 gpphbrp.exe 11->14         started        process5 signatures6 65 Multi AV Scanner detection for dropped file 14->65 67 Detected unpacking (changes PE section rights) 14->67 69 Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors) 14->69 71 2 other signatures 14->71 17 gpphbrp.exe 14->17         started        process7 signatures8 39 Modifies the context of a thread in another process (thread injection) 17->39 41 Maps a DLL or memory area into another process 17->41 43 Sample uses process hollowing technique 17->43 45 Queues an APC in another process (thread injection) 17->45 20 explorer.exe 2 1 17->20 injected process9 dnsIp10 33 www.hhxll.com 160.124.7.187, 49701, 80 POWERLINE-AS-APPOWERLINEDATACENTERHK South Africa 20->33 35 www.byunfussy.com 217.160.0.171, 49700, 80 ONEANDONE-ASBrauerstrasse48DE Germany 20->35 37 www.gfdopi.xyz 198.177.124.13, 49699, 80 FINALFRONTIERVG United States 20->37 55 System process connects to network (likely due to code injection or exploit) 20->55 57 Performs DNS queries to domains with low reputation 20->57 24 cmmon32.exe 20->24         started        signatures11 process12 signatures13 59 Modifies the context of a thread in another process (thread injection) 24->59 61 Maps a DLL or memory area into another process 24->61 63 Tries to detect virtualization through RDTSC time measurements 24->63 27 cmd.exe 1 24->27         started        process14 process15 29 conhost.exe 27->29         started       
Detection:
formbook
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Link:
https://mwdb.cert.pl/sample/ab8fa0dda1daa490598653ad71df25b26af3dc5b54434c68bccdff3eda13f96e/
Threat name:
Win32.Trojan.Nemesis
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Status:
Malicious
First seen:
2023-03-28 07:10:09 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
16 of 24 (66.67%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=voh2bxnb3ksjawmgkowxdxzfwjvphxc3krbuy2f4zx7t5wqt7fxa._file
Verdict:
malicious
Label(s):
formbook
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Result
Malware family:
formbook
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Score:
  10/10
Tags:
family:formbook campaign:gn35 rat spyware stealer trojan
Link:
https://tria.ge/reports/230328-hzdb8she67/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Executes dropped EXE
Loads dropped DLL
Formbook payload
Formbook
Unpacked files
SH256 hash:
5d0a0ea5c015794d439bf7a6f485dab0818e934a8ff9ad4b49081f8242298d3b
MD5 hash:
c8b748352ea974e8439834f285f323c7
SHA1 hash:
bb03aca5f5eff505c32eb3acc656037a21a186a3
Detections:
FormBook
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win_formbook_w0
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win_formbook_auto
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win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/4c1baca9-2e8d-4627-8c0d-fd0068e873c7/
SH256 hash:
a2e1c05e36e0d1af779d093396104bab3b43ea445052ad85f06f2bb85a178313
MD5 hash:
87086e5fe466e5ceee51bec50f40f690
SHA1 hash:
5342f9da8487bb5fda6d5d699dd781924c972f3f
Link:
https://www.unpac.me/results/4c1baca9-2e8d-4627-8c0d-fd0068e873c7/
SH256 hash:
77605e28e9752824381fc7e026c9c8e0f115442c1c306d9d1d066280945e8980
MD5 hash:
f9394d6c994da104b69ecfc701cb02a6
SHA1 hash:
78ac48ed2c0e529c013afee21b0bb64c163ecdd6
Link:
https://www.unpac.me/results/4c1baca9-2e8d-4627-8c0d-fd0068e873c7/
SH256 hash:
ab8fa0dda1daa490598653ad71df25b26af3dc5b54434c68bccdff3eda13f96e
MD5 hash:
7c85964484c4e3471124dd4dd5ef34df
SHA1 hash:
9a98592a83e9d3ba1dcbe52000e63f9940270fd7
Link:
https://www.unpac.me/results/4c1baca9-2e8d-4627-8c0d-fd0068e873c7/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/ab8fa0dda1da/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/ab8fa0dda1daa490598653ad71df25b26af3dc5b54434c68bccdff3eda13f96e

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:cobalt_strike_tmp01925d3f
Create hunting rule
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
Rule name:meth_get_eip
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Author:Willi Ballenthin
Rule name:meth_stackstrings
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Author:Willi Ballenthin
Rule name:shellcode
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Author:nex
Description:Matched shellcode byte patterns
Rule name:Windows_Trojan_Formbook
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Author:@malgamy12
Rule name:Windows_Trojan_Formbook_1112e116
Create hunting rule
Author:Elastic Security
Rule name:win_formbook_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.formbook.
Rule name:win_formbook_w0
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Author:@malgamy12

File information

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

Web download

Formbook

Executable exe ab8fa0dda1daa490598653ad71df25b26af3dc5b54434c68bccdff3eda13f96e

(this sample)

  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/378106/
  
URLhaus
https://urlhaus.abuse.ch/url/2588465/

Comments


Avatar
zbet commented on 2023-03-28 07:09:25 UTC

url : hxxp://192.3.101.250/56/vbc.exe