MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 667e8635796cd94ca4161f15f33e8c9d837c7c35a25d583e4f978ad76d9b86f8. 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: 15


Intelligence 15 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 667e8635796cd94ca4161f15f33e8c9d837c7c35a25d583e4f978ad76d9b86f8
SHA3-384 hash: c89b458dbb8f4d33da81976e4251b53473e4fbf1e7283ac7670cb8acc1cf5a22c2be2bfb15a3cbb797db8d23c8a09060
SHA1 hash: fcf0312cb21ffa3e8d0821140d83a0da11c12f2b
MD5 hash: c75b08ae8e3df09df881fb7abc135c71
humanhash: comet-indigo-dakota-august
File name:c75b08ae8e3df09df881fb7abc135c71.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:488'448 bytes
First seen:2021-11-30 07:12:13 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'748 x AgentTesla, 19'643 x Formbook, 12'245 x SnakeKeylogger)
ssdeep 12288:KpYcrq3cP0s3E9BW0N+xSzWXRep70zVq88Thv1Ka1bOH:KpYcrbpE9BxoS6XRY4sXVN/1bOH
Threatray 14'058 similar samples on MalwareBazaar
TLSH T1E0A4231033D8C726CB7D077281B9110527BC6A4A1852E25673EC705DE9AFB5E3B4EB8B
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
156
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
c75b08ae8e3df09df881fb7abc135c71.exe
Verdict:
Suspicious activity
Analysis date:
2021-11-30 07:16:10 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/047a3b57-775c-4e97-9704-9493b8451878

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/209810/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
DNS request
Unauthorized injection to a recently created process
Creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/61a5cf00bbfd2af97cbbf5b0/reports/404ebd7f-8aa1-4743-a091-cd8e4634fa5f/overview
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
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/4cce17fc-eb98-417f-9083-63408bf954cf
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/898480
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
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)
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
Self deletion via cmd delete
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 sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Uses netstat to query active network connections and open ports
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 530959 Sample: cT69PbT3G6.exe Startdate: 30/11/2021 Architecture: WINDOWS Score: 100 38 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->38 40 Found malware configuration 2->40 42 Malicious sample detected (through community Yara rule) 2->42 44 6 other signatures 2->44 10 cT69PbT3G6.exe 3 2->10         started        process3 file4 30 C:\Users\user\AppData\...\cT69PbT3G6.exe.log, ASCII 10->30 dropped 60 Tries to detect virtualization through RDTSC time measurements 10->60 14 cT69PbT3G6.exe 10->14         started        17 cT69PbT3G6.exe 10->17         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 19 explorer.exe 14->19 injected process8 dnsIp9 32 urzeczenie.com 87.98.234.164, 49801, 80 OVHFR France 19->32 34 www.loosesalatoyof2.xyz 150.95.255.38, 49811, 80 INTERQGMOInternetIncJP Japan 19->34 36 12 other IPs or domains 19->36 46 System process connects to network (likely due to code injection or exploit) 19->46 48 Performs DNS queries to domains with low reputation 19->48 50 Uses netstat to query active network connections and open ports 19->50 23 NETSTAT.EXE 19->23         started        signatures10 process11 signatures12 52 Self deletion via cmd delete 23->52 54 Modifies the context of a thread in another process (thread injection) 23->54 56 Maps a DLL or memory area into another process 23->56 58 Tries to detect virtualization through RDTSC time measurements 23->58 26 cmd.exe 1 23->26         started        process13 process14 28 conhost.exe 26->28         started       
Detection:
xloader
Create hunting rule
Link:
https://mwdb.cert.pl/sample/667e8635796cd94ca4161f15f33e8c9d837c7c35a25d583e4f978ad76d9b86f8/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-11-29 01:13:16 UTC
File Type:
PE (.Net Exe)
Extracted files:
17
AV detection:
21 of 28 (75.00%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
05c36634ef7b938c2494ed619644b03acf1add4bf7802238e7290af9185d3f78
Formbook
1960c78dcdbb4d893abeaf5220fc7a9c53ec0aa43389aa75146d7af4ce5707f1
Formbook
1bdc41058e53e885ccf81cf42ddac59733b6608f40719017dde98ac33ed8b8f5
Formbook
2c81bc76bb2b34fc085a6ff0beb19fda2b1e400ad67341f55185b8d8b7351643
Formbook
4c6f60ba070864a86dceaa5785b1dceb395cbe4667b9c539bc0675411b4e16a9
Formbook
5a2d98fb6f9e09f3cd49a863aa1290935ef1c5d714aa3beede7ca587f147f281
Formbook
b7b66b6a4f361469fabac82e4802b30059229fae232e46ef887c3f8a32828f2b
Formbook
b8b812944865a54d38070a2c21e7299bf0687d0343c02244546aaa728642e4ff
Formbook
ba10b4ebe4ae3556a1320c7a9b8cb14da16042061c33f1ded73c193cbac8f346
Formbook
bc42c1e528e70d0f4152e78278ed1a0e4bacf4cab8bb21da9ea8f99a48676355
Formbook
+ 14'048 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:hno0 loader rat
Link:
https://tria.ge/reports/211130-h13zaaebgm/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Xloader Payload
Xloader
Malware Config
C2 Extraction:
http://www.heidecide.xyz/hno0/
Unpacked files
SH256 hash:
e91fb76e13425f9f6253662e380c5bc84196251c9f3969b960d6cbcec79f3d00
MD5 hash:
2dd5b522b207576e74a6e7100367b78a
SHA1 hash:
766051b069420e0539b5a49cf32a72d3cbf44f7a
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/83f40b26-8d38-4481-9360-a4e48d8cfd8b/
Parent samples :
2c81bc76bb2b34fc085a6ff0beb19fda2b1e400ad67341f55185b8d8b7351643
4c6f60ba070864a86dceaa5785b1dceb395cbe4667b9c539bc0675411b4e16a9
ba10b4ebe4ae3556a1320c7a9b8cb14da16042061c33f1ded73c193cbac8f346
667e8635796cd94ca4161f15f33e8c9d837c7c35a25d583e4f978ad76d9b86f8
87c4a09709a7ba312539673bc4e85e4543d8e1ac4da43ce58adf8635f97f6207
775e97d800d0495cc950870530ddd9fc3a3169b95095c6cba2f29c7b99e0cac1
174efa98c8e09e5ac9d2916509eb3323fa20dd47dd3173ad069a2cb5e17b1852
efaa4527b761b2acb19d40051d303867ce0798ea1e32cf72b4408898d01b463b
SH256 hash:
b19104b568ca3ddccc2a8d3d10ecddb1ea240171e798dc3a486292cfa14b6365
MD5 hash:
7b0900da932f4ed9630d65b04422736d
SHA1 hash:
6fa340436e3a8e73ae2b3e911f861483183c68ef
Link:
https://www.unpac.me/results/83f40b26-8d38-4481-9360-a4e48d8cfd8b/
SH256 hash:
a673cfd5d558ae910a9518892a754f6350e994d6427eb61f2f32005834803873
MD5 hash:
f9bcfa421a17fd091a47efef76eb15b7
SHA1 hash:
4fbc4b18d602375ee5e3838cfa60774d4639bb90
Link:
https://www.unpac.me/results/83f40b26-8d38-4481-9360-a4e48d8cfd8b/
SH256 hash:
667e8635796cd94ca4161f15f33e8c9d837c7c35a25d583e4f978ad76d9b86f8
MD5 hash:
c75b08ae8e3df09df881fb7abc135c71
SHA1 hash:
fcf0312cb21ffa3e8d0821140d83a0da11c12f2b
Link:
https://www.unpac.me/results/83f40b26-8d38-4481-9360-a4e48d8cfd8b/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/667e8635796c/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.65
Link:
https://yomi.yoroi.company/submissions/667e8635796cd94ca4161f15f33e8c9d837c7c35a25d583e4f978ad76d9b86f8

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:pe_imphash
Create hunting rule
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

Web download

Formbook

Executable exe 667e8635796cd94ca4161f15f33e8c9d837c7c35a25d583e4f978ad76d9b86f8

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/1820906/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/209810/

Comments