MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b8e4dfdddae3c40ef710797605631573fe5689ae296637a411a88f8f3c1d7389. 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 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b8e4dfdddae3c40ef710797605631573fe5689ae296637a411a88f8f3c1d7389
SHA3-384 hash: c8d2ed353d40fcc777133ac8b93293d2462d78c3e9530f9b877c6bdfed2874c81bf20fb67735e5f12e04e285ad92103b
SHA1 hash: 86f384b49f9944039d886c1fd9da479f4488f93b
MD5 hash: 4b3bf3191eae4db584b8fb1b5b96ffe9
humanhash: pasta-uranus-georgia-illinois
File name:purchase order.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:946'176 bytes
First seen:2020-10-19 07:22:42 UTC
Last seen:2020-10-19 11:23:42 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'647 x AgentTesla, 19'451 x Formbook, 12'201 x SnakeKeylogger)
ssdeep 12288:MzBcFXmLUyw/fc2vaRbroXFolk53bG1u8cESeQzfO0OIQ9A1GKZHNYPzodU8/P:fmLUymvaNEFlK8qkjK/A1GUKzodU8/
Threatray 2'529 similar samples on MalwareBazaar
TLSH C8156A0132F84B19F47A57F5973480858BBABA4A153EE25CBD8D35DE1FB2B024A43B17
Reporter abuse_ch
Tags:exe FormBook


Avatar
abuse_ch
Malspam distributing unidentified malware:

HELO: hkm4c.com
Sending IP: 103.125.191.170
From: HongKong Mini4WDChannel <info@hkm4c.com>
Subject: RE: PURCHASE ORDER
Attachment: purchase order.rar (contains "purchase order.exe")

Intelligence

File Origin
# of uploads :
3
# of downloads :
87
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/72778/
Detection(s):
SecuriteInfo.com.Trojan.Inject4.3531.19056.12381.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Unauthorized injection to a recently created process
Creating a file
Launching a process
Launching cmd.exe command interpreter
Setting browser functions hooks
Unauthorized injection to a system process
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/494989
Signature
.NET source code contains potential unpacker
Initial sample is a PE file and has a suspicious name
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
Sigma detected: Suspicious Svchost Process
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
Yara detected AntiVM_3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 299962 Sample: purchase order.exe Startdate: 19/10/2020 Architecture: WINDOWS Score: 100 36 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->36 38 Malicious sample detected (through community Yara rule) 2->38 40 Multi AV Scanner detection for submitted file 2->40 42 9 other signatures 2->42 10 purchase order.exe 3 2->10         started        process3 file4 28 C:\Users\user\...\purchase order.exe.log, ASCII 10->28 dropped 52 Injects a PE file into a foreign processes 10->52 14 purchase order.exe 10->14         started        signatures5 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.dlrioata.com 172.252.51.111, 49772, 80 EGIHOSTINGUS United States 17->30 32 shops.myshopify.com 23.227.38.64, 49773, 80 CLOUDFLARENETUS Canada 17->32 34 4 other IPs or domains 17->34 44 System process connects to network (likely due to code injection or exploit) 17->44 21 svchost.exe 17->21         started        signatures10 process11 signatures12 46 Modifies the context of a thread in another process (thread injection) 21->46 48 Maps a DLL or memory area into another process 21->48 50 Tries to detect virtualization through RDTSC time measurements 21->50 24 cmd.exe 1 21->24         started        process13 process14 26 conhost.exe 24->26         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b8e4dfdddae3c40ef710797605631573fe5689ae296637a411a88f8f3c1d7389/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2020-10-19 03:55:29 UTC
File Type:
PE (.Net Exe)
Extracted files:
31
AV detection:
25 of 29 (86.21%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=xdsn7xo24pca55yqpf3akyyvop7fncnofftdpjarvchy6pa5ooeq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
0982a348bad7e99222ac6ec6c6dc2c113eb8adff8785bd1f371c5bc90b0025b3
Formbook
41e247af1c9e83534cd1a251b618432759435c3f9c9dfd2c8760f712a6ccc5a4
Formbook
680e6e46c8bed6c48e63f6dab3409bb9cd05f6642084ef8b0d03898dacc500a7
Formbook
73c2d8d44daa16a7b406b82cd5201483ae40404037e7a543ad91689cbced81ad
Formbook
93a0f97c3198a1ba4fafeb2c5fd7bd44f425cc5c9ad126880128d1ec22cc22ec
Formbook
9b9d8f51a8cf586b0380629f644676e0dce350466b06224523e01db393522339
Formbook
a9675f768840e844de5923c2319cae51ba47ca5eee5c50c58418d274d5985520
Formbook
b791ce91936d65f90d9ca761c1999ea8330b66d3c3aede92564395d4778b5955
Formbook
c611c4446e4604531e8e096508422fd01b23d26c424f9625d049e7edaf4f566a
Formbook
eacd132f69b64ef7a47c959fd92f50343be23e5768f0476c665870f5de4f89ee
Formbook
+ 2'519 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
rat trojan spyware stealer family:formbook
Link:
https://tria.ge/reports/201019-vpns76zs8e/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Deletes itself
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.onedollarreports.com/ga4/
Unpacked files
SH256 hash:
b8e4dfdddae3c40ef710797605631573fe5689ae296637a411a88f8f3c1d7389
MD5 hash:
4b3bf3191eae4db584b8fb1b5b96ffe9
SHA1 hash:
86f384b49f9944039d886c1fd9da479f4488f93b
Link:
https://www.unpac.me/results/e05c3a7c-66c3-43b0-af7b-d1797d879ad5/
SH256 hash:
2e5c584197341f21cc6573ab134f0abea2be5988ec22949531ad15d3b6ff663d
MD5 hash:
1bbdfc0be9827f3b632607a535e81a7d
SHA1 hash:
1f7c1cecddb2358c535ec4c5cf778ee63dfcfc0e
Link:
https://www.unpac.me/results/e05c3a7c-66c3-43b0-af7b-d1797d879ad5/
SH256 hash:
31ce938626ccfb399fe1696710caf46d7ae9eb598b9d7d2aad719b594658469b
MD5 hash:
0aebe46040ceb011e78506d4985fe3de
SHA1 hash:
218ac1e7b14a66c604ec3042f8486bed9cd4c2c1
Link:
https://www.unpac.me/results/e05c3a7c-66c3-43b0-af7b-d1797d879ad5/
SH256 hash:
73f076bc921d9938f0138a0f7dee0607dd676b051459e617919ccf3e72d892fb
MD5 hash:
cbde9fda97b44b27574ed1e5f23d47b8
SHA1 hash:
7a212755b64f48a0b2e6b6835e41ab76959ba9fc
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/e05c3a7c-66c3-43b0-af7b-d1797d879ad5/
Parent samples :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 note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Kryptik
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/b8e4dfdddae3c40ef710797605631573fe5689ae296637a411a88f8f3c1d7389

File information

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

Malspam

Formbook

rar 1796acbc33f359649dc07c84b9e403f9bb1238a0259962c23ef15768de6085d4

Formbook

Executable exe b8e4dfdddae3c40ef710797605631573fe5689ae296637a411a88f8f3c1d7389

(this sample)

  
Dropped by
MD5 05181e08b444b49c4f6d01667b598b2d
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/72778/
  
Dropped by
SHA256 1796acbc33f359649dc07c84b9e403f9bb1238a0259962c23ef15768de6085d4

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