MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f1881d929254a1477878ca9d19e8bab034394515782becaddf2645afac81d858. 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: 11


Intelligence 11 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f1881d929254a1477878ca9d19e8bab034394515782becaddf2645afac81d858
SHA3-384 hash: e0ca9622a2b548cd2ff7af0b9382c8debfb9731f281bac8eb9c51f6bb9daf4ec82d92961526ec8f831a595b224de2013
SHA1 hash: cd1b8f340e46ef3b2d89f9b8ca5b3a62d4b8fd14
MD5 hash: a1bf6457c196da3311ec2bb5d6a3dd93
humanhash: summer-paris-freddie-sad
File name:a1bf6457c196da3311ec2bb5d6a3dd93.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:27'648 bytes
First seen:2021-04-26 06:39:07 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'461 x Formbook, 12'202 x SnakeKeylogger)
ssdeep 384:hN2AcpI13XEllyJ6BoCTcYYRA8Bh1N8SAcoU03AvTXvIr5l:hN2/OU7TDsBNucX1DIb
Threatray 4'819 similar samples on MalwareBazaar
TLSH E2C2A31B3274122BC25A39B5C4ABE122917053D10532F3C61DF61E9F8DFA2F91AEF526
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
109
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
RFQINQ132311R58.doc
Verdict:
Malicious activity
Analysis date:
2021-04-26 05:20:03 UTC
Tags:
exploit CVE-2017-11882 trojan dtloader loader formbook stealer
Link:
https://app.any.run/tasks/78bc7ec0-d236-48e5-91f0-ec814767a6aa

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/144228/
Detection(s):
SecuriteInfo.com.Trojan.Downloader.146.4935.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
DNS request
Sending an HTTP GET request
Creating a file
Running batch commands
Creating a process with a hidden window
Launching a process
Sending a UDP request
Unauthorized injection to a recently created process
Adding an access-denied ACE
Result
Verdict:
UNKNOWN
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
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/478afc95-6663-4fe3-a9ce-dcffef8b2f72
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/697405
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to hide a thread from the debugger
Found malware configuration
Hides threads from debuggers
Injects a PE file into a foreign processes
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 (e.g. based on Emerging Threat rules)
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: 397623 Sample: YL9pkVukHn.exe Startdate: 26/04/2021 Architecture: WINDOWS Score: 100 45 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->45 47 Found malware configuration 2->47 49 Malicious sample detected (through community Yara rule) 2->49 51 6 other signatures 2->51 10 YL9pkVukHn.exe 15 4 2->10         started        process3 dnsIp4 43 xwjhdjylqeypyltby.ml 172.67.176.229, 49728, 80 CLOUDFLARENETUS United States 10->43 55 Tries to detect virtualization through RDTSC time measurements 10->55 57 Hides threads from debuggers 10->57 59 Injects a PE file into a foreign processes 10->59 61 Contains functionality to hide a thread from the debugger 10->61 14 YL9pkVukHn.exe 10->14         started        17 WerFault.exe 23 9 10->17         started        20 cmd.exe 1 10->20         started        signatures5 process6 file7 63 Modifies the context of a thread in another process (thread injection) 14->63 65 Maps a DLL or memory area into another process 14->65 67 Sample uses process hollowing technique 14->67 69 Queues an APC in another process (thread injection) 14->69 22 explorer.exe 14->22 injected 37 C:\ProgramData\Microsoft\...\Report.wer, Little-endian 17->37 dropped 26 conhost.exe 20->26         started        28 timeout.exe 1 20->28         started        signatures8 process9 dnsIp10 39 www.hacker78.com 179.43.156.43, 80 PLI-ASCH Panama 22->39 41 www.1368e.com 156.238.104.172, 49758, 80 DXTL-HKDXTLTseungKwanOServiceHK Seychelles 22->41 53 System process connects to network (likely due to code injection or exploit) 22->53 30 wlanext.exe 22->30         started        signatures11 process12 signatures13 71 Modifies the context of a thread in another process (thread injection) 30->71 73 Maps a DLL or memory area into another process 30->73 75 Tries to detect virtualization through RDTSC time measurements 30->75 33 cmd.exe 1 30->33         started        process14 process15 35 conhost.exe 33->35         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/f1881d929254a1477878ca9d19e8bab034394515782becaddf2645afac81d858/
Threat name:
Win32.Trojan.Wacatac
Create hunting rule
Status:
Malicious
First seen:
2021-04-26 06:40:12 UTC
AV detection:
17 of 47 (36.17%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=6geb3eusksquo6dyzkort2f2wa2dsrivpav6zlo7ezc27leb3bma._file
Verdict:
malicious
Similar samples:
035c33a60853bf5ee2b470e1c7d0e00a23d13a6b4d19afb46d6fe2335b468a16
Formbook
05b6ee8ad090962be89b9f9d1c604541bfc1914e94c245bad6f469988eed019c
Formbook
5aa64b3eef03b9c837e37102be20cb4f537c524b2a2531bf1bf6dd6a02461d7e
Formbook
625140ec60caaae03895c18ad400c65f5d5b15f55c7a01eb419a4215d295a6ee
Formbook
988d84650b91424e291cb84ef84433cbd4214622365b226d925d71ffda0bccb8
Formbook
a01cc1fb91c9f7d7490e45a84b861e7188a0f3d97769710af895ee843a19699c
Formbook
a14ae718bd486d1db0ac41a00f37ce34808fd267ee1286663a00f1baea7069d5
Formbook
b03f6bc5eec0f24076b3ef2c761b21d75c489ad34c5f94dcffab6d2b4d65263f
Formbook
d69345d398849a377103e09925aca369a6ee8fdaca08745d3bbb02aa79eb2861
Formbook
d8e0edf1cca3b6edefcd830e233131c593997b5bd4454891dc1b70614862f718
Formbook
+ 4'809 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook rat spyware stealer trojan
Link:
https://tria.ge/reports/210426-fwjcp6ba66/
Behaviour
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.unknowndjteam.com/hsd/
Unpacked files
SH256 hash:
f1881d929254a1477878ca9d19e8bab034394515782becaddf2645afac81d858
MD5 hash:
a1bf6457c196da3311ec2bb5d6a3dd93
SHA1 hash:
cd1b8f340e46ef3b2d89f9b8ca5b3a62d4b8fd14
Link:
https://www.unpac.me/results/03a51db3-e828-45ce-a183-8ce15fac3fb3/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Formbook
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/f1881d929254a1477878ca9d19e8bab034394515782becaddf2645afac81d858

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:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFu
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time

File information

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

Web download

Formbook

Executable exe f1881d929254a1477878ca9d19e8bab034394515782becaddf2645afac81d858

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/1169751/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/144228/

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