MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 9b4f5703c5ab1e5e1ca54fbdf0412956a4738217a0c0cc4c2872090944dbee74. 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: 9b4f5703c5ab1e5e1ca54fbdf0412956a4738217a0c0cc4c2872090944dbee74
SHA3-384 hash: 888261c39aa80ca3df7f4966e30d0f59ee1b403fb548512530fd70b56b59af8c5eeb64419ab448f70e2ee77c319c9e27
SHA1 hash: 976a2a3152895dd0af7d01ce99f0bad176e4dca1
MD5 hash: 481df71026e894e91be4b8367d879912
humanhash: pennsylvania-maryland-ohio-hotel
File name:mSR4x9NnMI2lSah.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:482'304 bytes
First seen:2021-09-03 09:21:04 UTC
Last seen:2021-09-03 09:35:50 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'663 x AgentTesla, 19'478 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:yaIm00pjRF2urJVJtkYQ6oKUYgyoGED7rFNDOdk2+W6Z:yafxljtkYQ6o7tbd7
Threatray 8'907 similar samples on MalwareBazaar
TLSH T151A4DF9D325076EFC857C8778EA81C20AA61747B930BD307A45721AD9E4D69BCF121F3
Reporter GovCERT_CH
Tags:exe FormBook xloader

Intelligence

File Origin
# of uploads :
2
# of downloads :
299
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
mSR4x9NnMI2lSah.exe
Verdict:
Malicious activity
Analysis date:
2021-09-03 09:33:23 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/1a854d8a-49ce-4b86-9ef5-c738a5fc5b98

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/185150/
Detection(s):
SecuriteInfo.com.Suspicious.Win32.Save.a.28064.22521.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
DNS request
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
Unauthorized injection to a system process
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/1255f18e-8ed1-444c-bbff-c8b1bd01452c
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/844682
Signature
.NET source code contains potential unpacker
C2 URLs / IPs found in malware configuration
Found malware configuration
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)
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
Sigma detected: Suspect Svchost Activity
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 AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 477110 Sample: mSR4x9NnMI2lSah.exe Startdate: 03/09/2021 Architecture: WINDOWS Score: 100 34 www.almarenait.com 2->34 36 www.westernpiedmontsistercities.com 2->36 46 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->46 48 Found malware configuration 2->48 50 Malicious sample detected (through community Yara rule) 2->50 52 9 other signatures 2->52 11 mSR4x9NnMI2lSah.exe 3 2->11         started        signatures3 process4 file5 32 C:\Users\user\...\mSR4x9NnMI2lSah.exe.log, ASCII 11->32 dropped 64 Tries to detect virtualization through RDTSC time measurements 11->64 66 Injects a PE file into a foreign processes 11->66 15 mSR4x9NnMI2lSah.exe 11->15         started        signatures6 process7 signatures8 68 Modifies the context of a thread in another process (thread injection) 15->68 70 Maps a DLL or memory area into another process 15->70 72 Sample uses process hollowing technique 15->72 74 Queues an APC in another process (thread injection) 15->74 18 explorer.exe 15->18 injected process9 dnsIp10 38 www.sell518.com 160.124.133.245, 80 POWERLINE-AS-APPOWERLINEDATACENTERHK South Africa 18->38 40 www.onehundredymq.com 208.91.197.46, 49731, 80 CONFLUENCE-NETWORK-INCVG Virgin Islands (BRITISH) 18->40 42 2 other IPs or domains 18->42 54 System process connects to network (likely due to code injection or exploit) 18->54 22 svchost.exe 12 18->22         started        26 autochk.exe 18->26         started        signatures11 process12 dnsIp13 44 www.sell518.com 22->44 56 System process connects to network (likely due to code injection or exploit) 22->56 58 Self deletion via cmd delete 22->58 60 Modifies the context of a thread in another process (thread injection) 22->60 62 2 other signatures 22->62 28 cmd.exe 1 22->28         started        signatures14 process15 process16 30 conhost.exe 28->30         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/9b4f5703c5ab1e5e1ca54fbdf0412956a4738217a0c0cc4c2872090944dbee74/
Threat name:
ByteCode-MSIL.Trojan.Sabsik
Create hunting rule
Status:
Malicious
First seen:
2021-09-03 07:44:33 UTC
AV detection:
9 of 42 (21.43%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=tnhvoa6fvmpf4hffj667aqjjk2shhaqxudamytbioieqsrg35z2a._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
108cc18c30a306c9fcd29d6d587cee73e18ccabbda0cb669b513a22b300d3a1d
Formbook
1de5c6b986a6401ba0490ccce78e8bf125d9604d07c4ad87a856a588f0aba6cb
Formbook
3e23bf4937349c5f5cf233e30658562fca94d58790ebbe693e176fb595fb0b34
Formbook
5349c12829e9211379203cade48f7d00777a66b4cb898d68764da90890aae048
Formbook
6b89423281b15d82bd2dabd24a68d7a1a7744c12ca2e951913f7361a271e34e5
Formbook
6b919aedc991817793774e45c3e84c4fd5ec2b6f299566101ad1392fe47595f3
Formbook
8d96cdba8c8ac7896773c03f0ab27a5cebe912d9cc6614fda1e149191fc6a7c7
Formbook
a7167abf716c8462ee7032b94b01b4e2ae49ea5dd9610138112bcbdad991ef03
Formbook
ae80c3c9ddf62e5b9b70e173c55b946db7a41aafee9bd645621157e05e9f95f4
Formbook
bb9ba507dcfe191724f459ded8009edfa46481b2e244827354116f1734a52a9c
Formbook
+ 8'897 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:p90g loader rat suricata
Link:
https://tria.ge/reports/210903-lbb12sgagm/
Behaviour
Gathers network information
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Deletes itself
Xloader Payload
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
Malware Config
C2 Extraction:
http://www.homeofficecovid.com/p90g/
Unpacked files
SH256 hash:
2b888abea02a9b3b440a7b8938f4a3fad8ff2d1e351c6c967d687e9702d0413d
MD5 hash:
4222053c38d6fccf2b6b84274f12e15a
SHA1 hash:
fec32f51e14126ea316faaa5789dfa2e64f7cc03
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/6ce4f028-af0d-424b-bccc-8521bd02bd72/
Parent samples :
6b89423281b15d82bd2dabd24a68d7a1a7744c12ca2e951913f7361a271e34e5
6b919aedc991817793774e45c3e84c4fd5ec2b6f299566101ad1392fe47595f3
9b4f5703c5ab1e5e1ca54fbdf0412956a4738217a0c0cc4c2872090944dbee74
24b2084808676120ed7c9057e7d830c7d78b18c1fe01558c6f33e47ff6aeca79
661cafba8f1ca7c7b53b269699e86a6386ffb3649eacfd81d70f806552ca4164
SH256 hash:
b20e4cd5143d141ed3c374f95a9e545e8515e3e0de2c5bdd9e55e5dca5627451
MD5 hash:
bacf82c41c10c8c796ed44dc378cab81
SHA1 hash:
6975cc57f7910a89bb24e771a49b3c542e92e20a
Link:
https://www.unpac.me/results/6ce4f028-af0d-424b-bccc-8521bd02bd72/
SH256 hash:
71c22e6ac9082e540a563032ab02ef848c2d58dbb60fe0a5597810f7443a1f9d
MD5 hash:
95ea881d8865fe012b17544c35852e8b
SHA1 hash:
2e3b723ca6c794305ba770f5a99e119fc4d22c9d
Link:
https://www.unpac.me/results/6ce4f028-af0d-424b-bccc-8521bd02bd72/
SH256 hash:
9b4f5703c5ab1e5e1ca54fbdf0412956a4738217a0c0cc4c2872090944dbee74
MD5 hash:
481df71026e894e91be4b8367d879912
SHA1 hash:
976a2a3152895dd0af7d01ce99f0bad176e4dca1
Link:
https://www.unpac.me/results/6ce4f028-af0d-424b-bccc-8521bd02bd72/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/9b4f5703c5ab/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.81
Link:
https://yomi.yoroi.company/submissions/9b4f5703c5ab1e5e1ca54fbdf0412956a4738217a0c0cc4c2872090944dbee74

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.

Malspam

Formbook

Executable exe 9b4f5703c5ab1e5e1ca54fbdf0412956a4738217a0c0cc4c2872090944dbee74

(this sample)

  
Dropped by
xloader
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/185150/

Comments