MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 644b959318e7825454d8cdd4af75ddeb489c94a7754da360d4cd155bccc3a669. 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: 8


Intelligence 8 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 644b959318e7825454d8cdd4af75ddeb489c94a7754da360d4cd155bccc3a669
SHA3-384 hash: 577646371b2c681186238a40fbd917000d33b49f3c94949b778dfeaf17de1fe727c06c2b75911c67eae655fb2ca9aae4
SHA1 hash: e38e53363ec6830a90a4bc41aec9dd3e64bc427d
MD5 hash: c0b8d4d9bfa8808071e03ac2697bf7c4
humanhash: ack-lima-burger-nebraska
File name:PAYMENT INVOICE.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:268'288 bytes
First seen:2021-07-23 06:29:44 UTC
Last seen:2021-07-23 07:49:48 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'606 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 3072:AgoBT1MdXnhLB7XqSl9Q8IGuSdjnOiRs3/3pEPoLFND7SR:lnpld/BnlE0QFZS
Threatray 6'758 similar samples on MalwareBazaar
TLSH T122444752EBBAEE35CE741A3FC68573350F6E5E9181F1BE8D314CB0652EB9E0091406A7
dhash icon 31f098b29298f031 (53 x AgentTesla, 30 x Formbook, 12 x RedLineStealer)
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
146
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
PAYMENT INVOICE.exe
Verdict:
Malicious activity
Analysis date:
2021-07-23 06:37:07 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/d8a6af96-6ab3-40ce-b009-95a4bdcfe6d7

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/173543/
Detection(s):
SecuriteInfo.com.Trojan.Win32.Save.a.25759.6815.UNOFFICIAL
Create hunting rule

Result
Verdict:
SUSPICIOUS
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/a58bcbc1-5046-42c0-badd-ef866a79435b
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/820569
Signature
.NET source code contains potential unpacker
C2 URLs / IPs found in malware configuration
Executable has a suspicious name (potential lure to open the executable)
Found malware configuration
Initial sample is a PE file and has a suspicious name
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: 452978 Sample: PAYMENT INVOICE.exe Startdate: 23/07/2021 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 9 other signatures 2->44 10 PAYMENT INVOICE.exe 15 3 2->10         started        process3 dnsIp4 36 cdn.discordapp.com 162.159.133.233, 443, 49714 CLOUDFLARENETUS United States 10->36 28 C:\Users\user\...\PAYMENT INVOICE.exe.log, ASCII 10->28 dropped 14 PAYMENT INVOICE.exe 10->14         started        file5 process6 signatures7 54 Modifies the context of a thread in another process (thread injection) 14->54 56 Maps a DLL or memory area into another process 14->56 58 Sample uses process hollowing technique 14->58 60 Queues an APC in another process (thread injection) 14->60 17 explorer.exe 14->17 injected process8 dnsIp9 30 www.hyattregencywesthanoi.com 18.217.251.129, 49736, 80 AMAZON-02US United States 17->30 32 www.mcpuck.net 17->32 34 3 other IPs or domains 17->34 46 System process connects to network (likely due to code injection or exploit) 17->46 21 cscript.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:
n/a
Link:
https://mwdb.cert.pl/sample/644b959318e7825454d8cdd4af75ddeb489c94a7754da360d4cd155bccc3a669/
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=mrfzleyy46bfivgyzxkk65o55nejzffhovg2gyguzukvxtgduzuq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
35880c5210af5dca3edc22a693ab5f0cfcec0105cec988d930ab29fe09bd3461
Formbook
66e06710b095c687448e0b08240a99f84dfbfc24882a2c8c9f5b165f58469d8f
Formbook
68fd922afd4b980e00af527f2e2d6bbeed59ec1508c089370d64081a5532f3f2
Formbook
6f4fbab85c58d588450bc856ceff3894645e0033b4c4d2684184a8430c01daa4
Formbook
726a3798f80c7e482b512dc777bc692965136190990a5fed138934a546944121
Formbook
72a002cd9cd49afe6f15c5dc2ad7e3f65471b21fd4331202183b87c7ebab7fe3
Formbook
7c6393b4e86ea5cec49c0f814b17e4bb85aa447c19896037252a94ff6416ce1b
Formbook
818b8b831f3c774e034e2794f1eae71f62f5388355916e948b472cfdac7f5508
Formbook
d869fa27fd5d5a229609f218572f1625820cb8176ba6c1616714e40d4e6b7897
Formbook
dd44eb26a328f1e86823339666e1b1237ad7b1d880694c1b8fb8164b931aa512
Formbook
+ 6'748 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook rat spyware stealer suricata trojan
Link:
https://tria.ge/reports/210723-fxze2d52ps/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Downloads MZ/PE file
Formbook Payload
Formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
Malware Config
C2 Extraction:
http://www.hyattregencywesthanoi.com/ltrg/
Unpacked files
SH256 hash:
644b959318e7825454d8cdd4af75ddeb489c94a7754da360d4cd155bccc3a669
MD5 hash:
c0b8d4d9bfa8808071e03ac2697bf7c4
SHA1 hash:
e38e53363ec6830a90a4bc41aec9dd3e64bc427d
Link:
https://www.unpac.me/results/2f1511ac-3b79-4417-9522-6da4c7d3c3e6/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.35
Link:
https://yomi.yoroi.company/submissions/644b959318e7825454d8cdd4af75ddeb489c94a7754da360d4cd155bccc3a669

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: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.

Cape
Cape
https://www.capesandbox.com/analysis/173543/

Comments