MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b3abc09be3775f75fe01c084e3024371dcf7bba8b91e97d5ecf35862f9812ee2. 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: 13


Intelligence 13 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b3abc09be3775f75fe01c084e3024371dcf7bba8b91e97d5ecf35862f9812ee2
SHA3-384 hash: c346256b49aedb16585f591a203c022b67c784a171cbd21f2eb4b7d359bc53b550fb74bec1d033f9242cebcb0a42c7d9
SHA1 hash: b7c250c68374b9893308acc7dea16c05c9446723
MD5 hash: ae989ee08e517c4f6579907fd38f689f
humanhash: yellow-item-texas-monkey
File name:New Booking # 1443026 Wallem 221 S376 DELAY NOTICE BY WHL.scr
Download: download sample
Signature Formbook
Create hunting rule
File size:503'808 bytes
First seen:2021-11-26 10:36:22 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'659 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:zdUEfQLTimG/GvYOLwfyQZjbvge/OUkSypSMkq6VoRx7VM:zdUnJrsfDx8oOrSokvVg
Threatray 11'650 similar samples on MalwareBazaar
TLSH T177B4023036D8A273CC260F761D31608127737A51BD11EA8F7CC9229E6D66F9B4B217A7
Reporter pr0xylife
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
134
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
New Booking # 1443026 Wallem 221 S376 DELAY NOTICE BY WHL.scr
Verdict:
Suspicious activity
Analysis date:
2021-11-26 10:43:31 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/5c6d223c-98f5-43c8-8ddb-0ca06256a279

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Gathering data
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
DNS request
Unauthorized injection to a recently created process
Creating a file
Сreating synchronization primitives
Launching a process
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/61a0b8cfb71ceed415316f90/reports/486e81e2-ce3c-4255-a9c6-b293ebd58ae5/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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/f8c940eb-5964-46c9-9a6d-71e88ee50bac
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/896615
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
Initial sample is a PE file and has a suspicious name
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
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
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 529090 Sample: New Booking # 1443026 Walle... Startdate: 26/11/2021 Architecture: WINDOWS Score: 100 36 www.lacofood.com 2->36 38 www.answersystems-of-texas.com 2->38 42 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->42 44 Found malware configuration 2->44 46 Malicious sample detected (through community Yara rule) 2->46 48 9 other signatures 2->48 11 New Booking # 1443026 Wallem 221 S376 DELAY NOTICE BY WHL.exe 3 2->11         started        signatures3 process4 file5 28 New Booking # 1443...TICE BY WHL.exe.log, ASCII 11->28 dropped 14 New Booking # 1443026 Wallem 221 S376 DELAY NOTICE BY WHL.exe 11->14         started        process6 signatures7 58 Modifies the context of a thread in another process (thread injection) 14->58 60 Maps a DLL or memory area into another process 14->60 62 Sample uses process hollowing technique 14->62 64 Queues an APC in another process (thread injection) 14->64 17 explorer.exe 14->17 injected process8 dnsIp9 30 www.bqric.com 210.209.125.174, 49794, 80 NWT-AS-APASnumberforNewWorldTelephoneLtdHK Hong Kong 17->30 32 www.yotosunny.com 3.64.163.50, 49816, 80 AMAZON-02US United States 17->32 34 6 other IPs or domains 17->34 40 System process connects to network (likely due to code injection or exploit) 17->40 21 chkdsk.exe 17->21         started        signatures10 process11 signatures12 50 Self deletion via cmd delete 21->50 52 Modifies the context of a thread in another process (thread injection) 21->52 54 Maps a DLL or memory area into another process 21->54 56 Tries to detect virtualization through RDTSC time measurements 21->56 24 cmd.exe 1 21->24         started        process13 process14 26 conhost.exe 24->26         started       
Detection:
xloader
Create hunting rule
Link:
https://mwdb.cert.pl/sample/b3abc09be3775f75fe01c084e3024371dcf7bba8b91e97d5ecf35862f9812ee2/
Threat name:
ByteCode-MSIL.Spyware.FormBook
Create hunting rule
Status:
Malicious
First seen:
2021-11-24 07:54:46 UTC
File Type:
PE (.Net Exe)
Extracted files:
7
AV detection:
21 of 27 (77.78%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wov4bg7do5pxl7qbyccogasdohoppo5ixepjpvpm6nmgf6mbf3ra._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
18e91cbaa2d04fa969e97e947ccd011d494f68eb6375b067f0342a7765fb3119
Formbook
1bdc41058e53e885ccf81cf42ddac59733b6608f40719017dde98ac33ed8b8f5
Formbook
1f26dff77c5abe47b2f1ec6360396fef9b66c18fa7c76629568de2089bc7052f
Formbook
5d5aa4f1afaa9dd98bc1317f5b8e190cf21130d465da575fac9d4fbc6b3fb3af
Formbook
64b041387c3c512a5b43c2a1d811b35f18f4d537c522dafb7b3e736912907426
Formbook
f0a7f92f4fa639da7f829e82242a21aa8861bc98f1783b51638e04dc148e81b5
Formbook
fafcee9b031f24dbd150b43afbb5cac24bbdccfa4125f4f3017bdd8e94926e9e
Formbook
fb276f51c615e16f18d29939fd68c876b2edca1351471e3d428fadcb61e97239
Formbook
ff50a282945cb9b5a738f97aa08714f874469eaa4ed79fcd0c5fd0c12d6a4be8
Formbook
fff77f3852a66a56bad4ec5bc1c1bc2afb0b08b8ea65393384a1ee6917dcb355
Formbook
+ 11'640 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:mc6b loader rat
Link:
https://tria.ge/reports/211126-mntbjafbd6/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
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
Xloader Payload
Xloader
Malware Config
C2 Extraction:
http://www.orderinformantmailer.site/mc6b/
Unpacked files
SH256 hash:
57f345b6d516489389fffeedc00c642e0d850485b36ea9829e092d3f7cc601e5
MD5 hash:
18d21f966189dc6ac738a0e718106474
SHA1 hash:
007d152fdd6ff727262689be34b2217626eee6d0
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/719eedc2-308b-4499-b2a4-bc2941007a49/
Parent samples :
6d1db64be8034306d9b947c25edf28730771762e1df73dc15f4bb2347266f4a1
05d5b977ea607673e5be640c0a73fd382e02eeecac8e91ac7e3e36bd334e32d4
fb276f51c615e16f18d29939fd68c876b2edca1351471e3d428fadcb61e97239
b3abc09be3775f75fe01c084e3024371dcf7bba8b91e97d5ecf35862f9812ee2
d1edc3c0253606f0816f85d7eafe573813deb260842945ac31c376cb28d7504b
SH256 hash:
6176deea29f5f2cb08a7536c524069e2e017a719a3667e3b363cb04ec4c9f98c
MD5 hash:
e635fef80d65ffd787b8ddefa3054554
SHA1 hash:
b82b9f8eb55d8c71e2244d3453bb5bf62fce35a4
Link:
https://www.unpac.me/results/719eedc2-308b-4499-b2a4-bc2941007a49/
SH256 hash:
302ac54c94e8bdb12b7fdaeef76e2b936e0294ea5b1ced38c6da51ef50c3067e
MD5 hash:
d1a58ca8f82c480763bfa3205e80b770
SHA1 hash:
7b23287d165b2dae07ead2625bd4e1e525d27a1b
Link:
https://www.unpac.me/results/719eedc2-308b-4499-b2a4-bc2941007a49/
SH256 hash:
b3abc09be3775f75fe01c084e3024371dcf7bba8b91e97d5ecf35862f9812ee2
MD5 hash:
ae989ee08e517c4f6579907fd38f689f
SHA1 hash:
b7c250c68374b9893308acc7dea16c05c9446723
Link:
https://www.unpac.me/results/719eedc2-308b-4499-b2a4-bc2941007a49/
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/b3abc09be3775f75fe01c084e3024371dcf7bba8b91e97d5ecf35862f9812ee2

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.

Cape
Cape
https://www.capesandbox.com/analysis/209737/

Comments