MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4b6eb1fa81423abeb496eafc4d4d7c768e3c571294d7030c7a52935068166e1b. 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: 16


Intelligence 16 IOCs YARA 1 File information Comments 1
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SHA256 hash: 4b6eb1fa81423abeb496eafc4d4d7c768e3c571294d7030c7a52935068166e1b
SHA3-384 hash: 6e0d1c15af7a650735d0cf3f3d5daf18484bfc213122ab9337b96b5125eb13d4a3c40576b1c8f191979139eb260cdfb9
SHA1 hash: 69ad6ec02614bbb0db78152add85c25161dc6a80
MD5 hash: bacd8202f058ddcc5fddf57f8fce99d8
humanhash: cold-emma-robin-timing
File name:bacd8202f058ddcc5fddf57f8fce99d8
Download: download sample
Signature Formbook
Create hunting rule
File size:262'585 bytes
First seen:2023-07-19 13:59:27 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 61259b55b8912888e90f516ca08dc514 (1'059 x Formbook, 741 x AgentTesla, 427 x GuLoader)
ssdeep 6144:vYa6IDRFsZTfFSRGOPTWtUuuPjhnttVP8E/vYKc8i4Y5NYe:vYeDATfsTuShnVPhYKxHe
Threatray 3'326 similar samples on MalwareBazaar
TLSH T13F441220AAB8D45FD467277A09390B54EBF4FA2674349A9F0316AF1C7C122919E1F373
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 96e8e0d4d4ccb2a4 (9 x Formbook, 6 x AveMariaRAT, 4 x AgentTesla)
Reporter zbetcheckin
Tags:32 exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
293
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
formbook
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ID:
1
File name:
INDUSTRIAS PONSA SA CATALOGUE & PRICELIST JULY 2023.doc
Verdict:
Malicious activity
Analysis date:
2023-07-19 12:33:15 UTC
Tags:
exploit cve-2017-11882 loader formbook xloader
Link:
https://app.any.run/tasks/0a07537a-ac34-4af5-a717-529a0df149c2

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/425087/
Detection(s):
SecuriteInfo.com.Trojan.NSISX.Spy.Gen.24.28047.24973.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
control lolbin overlay packed shell32
Link:
https://www.filescan.io/uploads/64b7ec63bff77678e7473e15/reports/94ec26d2-f1dd-45dd-b6dc-b277efd0ac39/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_90%
Link:
https://www.hybrid-analysis.com/sample/4b6eb1fa81423abeb496eafc4d4d7c768e3c571294d7030c7a52935068166e1b
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/e68178f1-aa79-4a9d-a862-362c17e14883
Result
Threat name:
FormBook, NSISDropper
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1276044
Signature
Antivirus detection for URL or domain
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)
Found 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 domain / URL
Multi AV Scanner detection for dropped file
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 virtualization through RDTSC time measurements
Uses netsh to modify the Windows network and firewall settings
Yara detected FormBook
Yara detected NSISDropper
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1276044 Sample: f6lFxWTWCU.exe Startdate: 19/07/2023 Architecture: WINDOWS Score: 100 36 Snort IDS alert for network traffic 2->36 38 Multi AV Scanner detection for domain / URL 2->38 40 Found malware configuration 2->40 42 9 other signatures 2->42 10 f6lFxWTWCU.exe 18 2->10         started        process3 file4 28 C:\Users\user\AppData\Local\...\btsbjnjm.dll, PE32 10->28 dropped 54 Detected unpacking (changes PE section rights) 10->54 56 Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors) 10->56 58 Maps a DLL or memory area into another process 10->58 60 Tries to detect virtualization through RDTSC time measurements 10->60 14 f6lFxWTWCU.exe 10->14         started        signatures5 process6 signatures7 62 Modifies the context of a thread in another process (thread injection) 14->62 64 Maps a DLL or memory area into another process 14->64 66 Sample uses process hollowing technique 14->66 68 Queues an APC in another process (thread injection) 14->68 17 explorer.exe 2 1 14->17 injected process8 dnsIp9 30 www.b8q9h.fun 154.219.176.123, 49694, 80 DXTL-HKDXTLTseungKwanOServiceHK Seychelles 17->30 32 www.quanhuipeng.com 103.134.144.35, 49693, 80 ASLINE-AS-APASLINELIMITEDHK Hong Kong 17->32 34 www.yattaya.com 17->34 44 System process connects to network (likely due to code injection or exploit) 17->44 46 Uses netsh to modify the Windows network and firewall settings 17->46 21 netsh.exe 17->21         started        signatures10 process11 signatures12 48 Modifies the context of a thread in another process (thread injection) 21->48 50 Maps a DLL or memory area into another process 21->50 52 Tries to detect virtualization through RDTSC time measurements 21->52 24 cmd.exe 1 21->24         started        process13 process14 26 conhost.exe 24->26         started       
Detection:
formbook
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Link:
https://mwdb.cert.pl/sample/4b6eb1fa81423abeb496eafc4d4d7c768e3c571294d7030c7a52935068166e1b/
Threat name:
Win32.Trojan.Strab
Create hunting rule
Status:
Malicious
First seen:
2023-07-19 12:59:45 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
21 of 25 (84.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=jnxld6ubii5l5new5l6e2tl4o2hdyvysstlqgdd2kkjva2awnynq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
0bc4f76fe986f1ba6cc98772aa9ede93f048b69dc0663bc51ab9e11e436546a2
Formbook
5eb2fdddbd470e55de54cab50d8906e00eb202714c9b0cb2fd95b4b58b3a125b
Formbook
719b031a6eb4fb932f4ddc541bcd119995ea7273f77c9bbe663273401d157513
Formbook
7fe06d6a92d7557335e0b7fb8f79afad7f23a405ac1c476c1d151850348670d5
Formbook
aae4507b359991ebb7102b2531f939178db88102ac66b5307e5ea065d94639ea
Formbook
b80d975ddd8e28bf201a5dd08cbfa50ef211aa5600f33b4c10e6d72068864f13
Formbook
c299e76637951c9dbe6d4e5eed327228c70a186c9c37958b3bb756add59419f9
Formbook
f9d8de2f2c358a5dd9e080b0f4f9b9f651e59cc7cecbec4c83e45197e1ffe13d
Formbook
+ 3'316 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:k2l0 rat spyware stealer trojan
Link:
https://tria.ge/reports/230719-razcvahb5v/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Loads dropped DLL
Formbook payload
Formbook
Unpacked files
SH256 hash:
4b6eb1fa81423abeb496eafc4d4d7c768e3c571294d7030c7a52935068166e1b
MD5 hash:
bacd8202f058ddcc5fddf57f8fce99d8
SHA1 hash:
69ad6ec02614bbb0db78152add85c25161dc6a80
Link:
https://www.unpac.me/results/8bb7f7c9-9093-4505-a18e-3bb2463bbd0c/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/4b6eb1fa8142/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/4b6eb1fa81423abeb496eafc4d4d7c768e3c571294d7030c7a52935068166e1b

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: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.

Web download

Formbook

Executable exe 4b6eb1fa81423abeb496eafc4d4d7c768e3c571294d7030c7a52935068166e1b

(this sample)

  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/425087/
  
URLhaus
https://urlhaus.abuse.ch/url/2685821/

Comments


Avatar
zbet commented on 2023-07-19 13:59:28 UTC

url : hxxp://www.abhgzr.ma/lzoCW4lLiTNeo.exe