MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 852d3890ed7348734c5f18da1141075129468263b43f82cec8ac7b3e4b9145ac. 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: 10


Intelligence 10 IOCs YARA 2 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 852d3890ed7348734c5f18da1141075129468263b43f82cec8ac7b3e4b9145ac
SHA3-384 hash: 39c658be83ce01181190ce61d811e3ff63edae77b39a9daffe02ed44e3594b5224e3169c14f19e28f262400a7f20db3a
SHA1 hash: b1d7f9c5c94858acfeb75b8bdfea38e3c4f01eb6
MD5 hash: b4e443daba6d844cfaba63ca17ff5a09
humanhash: orange-sweet-floor-batman
File name:b4e443daba6d844cfaba63ca17ff5a09.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:185'856 bytes
First seen:2021-04-20 12:02:58 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
ssdeep 3072:w0PQPRYZGDxSksJgORScmRfpaj+jfHIEj2eK72AdnIzBPvSCXj1l:9PgLyJbUTBaj+zomcbdIzBXD1
Threatray 4'852 similar samples on MalwareBazaar
TLSH E504AE32D641C070E2B251B4F67D1B7B883E0E353254A4EAA3E516E06FB45E9F12A31F
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
103
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/139606/
Detection(s):
SecuriteInfo.com.Trojan.PWS.Banker1.29984.UNOFFICIAL
Create hunting rule

Win.Malware.Formbook-7399661-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a custom TCP request
Sending a UDP request
Creating a window
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.
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/689654
Signature
Antivirus / Scanner detection for submitted sample
C2 URLs / IPs found in malware configuration
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 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
Uses netstat to query active network connections and open ports
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/852d3890ed7348734c5f18da1141075129468263b43f82cec8ac7b3e4b9145ac/
Gathering data
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=quwtrehnonehgtc7ddnbcqihkeuunatdwq7yftwivr5t4s4riwwa._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
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Formbook
4fe5115259b2c032f03275273349549ab896959c818d771a4ad755ce64866379
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5aa64b3eef03b9c837e37102be20cb4f537c524b2a2531bf1bf6dd6a02461d7e
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5d4c17f9ea28e3df3efa9d9c7ba40444abeee049fe999eb2d579c6cf4ccc3231
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5fef6e5e702f6ac33542c50d34d3054d1b957c3afd5dffc8fbeaa81d82fdf562
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8309d803c92faaf24828cd67e4c1041f9465ecf6c63f7608d7ed4579f075a02c
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851ee4f67cc28e3634b0062d77f62222d026c4e9674a894bcdd5b6c6e6bda376
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85c528083c96b1f895ddd73681a8b78caf639b8dcf91eca47ae4e7e7cd3e3540
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a2cdf452f83aa86c0f3ade321cfc00a9ed3671082372081a67cad84a26492051
Formbook
dd44eb26a328f1e86823339666e1b1237ad7b1d880694c1b8fb8164b931aa512
Formbook
+ 4'842 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook rat
Link:
https://tria.ge/reports/210420-5sptypsa2s/
Behaviour
Suspicious behavior: EnumeratesProcesses
Malware Config
C2 Extraction:
http://www.stepsaudio.com/mjl/
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/852d3890ed7348734c5f18da1141075129468263b43f82cec8ac7b3e4b9145ac

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:Formbook
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Formbook in memory
Reference:internal research
Rule name:win_formbook_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:autogenerated rule brought to you by yara-signator

File information

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

Web download

Formbook

Executable exe 852d3890ed7348734c5f18da1141075129468263b43f82cec8ac7b3e4b9145ac

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/139606/
  
URLhaus
https://urlhaus.abuse.ch/url/1143665/
  
Delivery method
Distributed via web download

Comments


Avatar
a̵c̵c̸i̵d̷e̵n̷t̴a̷l̴r̵e̷b̸e̴l̸ commented on 2021-04-20 13:15:18 UTC

============================================================
MBC behaviors list (github.com/accidentalrebel/mbcscan):
============================================================
0) [B0001.034] Anti-Behavioral Analysis::Anti-debugging Instructions
1) [B0012.001] Anti-Static Analysis::Argument Obfuscation
2) [C0029.002] Cryptography Micro-objective::SHA1::Cryptographic Hash
3) [C0027.009] Cryptography Micro-objective::RC4::Encrypt Data
4) [C0021.004] Cryptography Micro-objective::RC4 PRGA::Generate Pseudo-random Sequence
5) [C0026.001] Data Micro-objective::Base64::Encode Data
6) [C0026.002] Data Micro-objective::XOR::Encode Data