MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 285b8a6638f87b87204ba68570315a41570229ce3f7ecb2014437aee9e0d5875. 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: 12


Intelligence 12 IOCs YARA File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 285b8a6638f87b87204ba68570315a41570229ce3f7ecb2014437aee9e0d5875
SHA3-384 hash: db74e45c37ab7b522bcf445ae783c4846fac8b808bb91f63101bd6724d2ce735a74689a3eb785dc301fd1fd26a725e85
SHA1 hash: b6cd7db78451f4300b1e0ce62aa546862f9e4d5e
MD5 hash: a29e2e6bcd5193f8fc813605d8f5970b
humanhash: oklahoma-batman-blue-louisiana
File name:a29e2e6bcd5193f8fc813605d8f5970b.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'504'768 bytes
First seen:2021-01-20 14:52:25 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'452 x Formbook, 12'201 x SnakeKeylogger)
ssdeep 24576:x0B4eQP6KOA4PUV9qdPuflWvdDnfIurIoTb2ZhgsZk8eEK0:wI4PyqdPudWlDfImIoTbehg23nK0
Threatray 3'582 similar samples on MalwareBazaar
TLSH 8965C49C751C71EEC8D7C0728AAB1C64AA536CBA431B420390173DB9BA7D897CF547B2
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
166
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Documents.xlsx
Verdict:
Malicious activity
Analysis date:
2021-01-20 14:25:08 UTC
Tags:
encrypted trojan exploit CVE-2017-11882 loader formbook stealer
Link:
https://app.any.run/tasks/1c583bc4-0e93-47c0-97c5-e6d79dfa379e

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/113152/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a custom TCP request
Creating a window
Sending a UDP request
Unauthorized injection to a recently created process
Creating a file
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.
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/586249
Signature
Antivirus detection for URL or domain
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Detected unpacking (changes PE section rights)
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
PE file contains section with special chars
PE file has nameless sections
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 sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Tries to download HTTP data from a sinkholed server
Yara detected AntiVM_3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 342157 Sample: KtJsMM8kdE.exe Startdate: 20/01/2021 Architecture: WINDOWS Score: 100 33 www.herbmedia.net 2->33 41 Tries to download HTTP data from a sinkholed server 2->41 43 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->43 45 Found malware configuration 2->45 47 9 other signatures 2->47 11 KtJsMM8kdE.exe 3 2->11         started        signatures3 process4 file5 31 C:\Users\user\AppData\...\KtJsMM8kdE.exe.log, ASCII 11->31 dropped 57 Detected unpacking (changes PE section rights) 11->57 59 Tries to detect virtualization through RDTSC time measurements 11->59 61 Injects a PE file into a foreign processes 11->61 63 Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent) 11->63 15 KtJsMM8kdE.exe 11->15         started        18 KtJsMM8kdE.exe 11->18         started        signatures6 process7 signatures8 65 Modifies the context of a thread in another process (thread injection) 15->65 67 Maps a DLL or memory area into another process 15->67 69 Sample uses process hollowing technique 15->69 71 Queues an APC in another process (thread injection) 15->71 20 explorer.exe 6 15->20 injected process9 dnsIp10 35 6983ylc.com 102.134.35.144, 49740, 80 sun-asnSC South Africa 20->35 37 brainandbodystrengthcoach.com 34.102.136.180, 49733, 49753, 49761 GOOGLEUS United States 20->37 39 25 other IPs or domains 20->39 49 System process connects to network (likely due to code injection or exploit) 20->49 24 help.exe 20->24         started        signatures11 process12 signatures13 51 Modifies the context of a thread in another process (thread injection) 24->51 53 Maps a DLL or memory area into another process 24->53 55 Tries to detect virtualization through RDTSC time measurements 24->55 27 cmd.exe 1 24->27         started        process14 process15 29 conhost.exe 27->29         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/285b8a6638f87b87204ba68570315a41570229ce3f7ecb2014437aee9e0d5875/
Threat name:
ByteCode-MSIL.Trojan.Wacatac
Create hunting rule
Status:
Malicious
First seen:
2021-01-20 14:53:06 UTC
AV detection:
19 of 29 (65.52%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=fbnyuzry7b5yoiclu2cxamk2iflqekooh57mwiauin5o5hqnlb2q._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
0a909cbfd2a1c352fbd9eb58f0623302fde6975668631cf5b0b294716b91b189
Formbook
1ade8e9c697c91b31ad76389a10e95c229eb05359a1dd70358be045199ff77a4
Formbook
2abb16d594f4b36fc8b8aab8cab7736350421c619cec8e12e8975e87f7a99faa
Formbook
2d876129c69f0f4be0c87aeb20cdc38ae8f5db29bea6f87807946b89e0b61a50
Formbook
549de81621fd5e577a164009e14fe791e2099b1a985fe37739801fdf156800b8
Formbook
57fcc02e839d4ae0b8965ed55738960a952006f5e70ee1317f2bfacb97a43a5f
Formbook
7052f92dce4eaee0a7a7046c6529d6ebc79ddb2ee6e487cf34c6c7cd5dfea6ee
Formbook
767b1b32d4ac4cec73967590ca5b28c3e0f4d709c0773e3f4021774f15a2483a
Formbook
a80553f1c2dcc35c48adf765bbb4f695d9d3c47d57ab0e47e4e8118588466731
Formbook
b4db045a825affb493b9ecf2155047996fe2dd6f85db26a79070c7fd78fa60e9
Formbook
+ 3'572 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:formbook family:xloader loader rat spyware stealer trojan
Link:
https://tria.ge/reports/210120-pf4n3qeyc6/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Xloader Payload
Formbook
Xloader
Malware Config
C2 Extraction:
http://www.herbmedia.net/csv8/
Unpacked files
SH256 hash:
cf03d88cc1b7f472176164f81f85e80be1923031844f157de28bfe3f7c983868
MD5 hash:
282ac604229ba63d2e37255cae871674
SHA1 hash:
b7a8efccf802bf8a99fced2f87d16ea51c6fa336
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/2b640a9b-8e32-468b-8810-47652ec6fd58/
Parent samples :
7052f92dce4eaee0a7a7046c6529d6ebc79ddb2ee6e487cf34c6c7cd5dfea6ee
0a909cbfd2a1c352fbd9eb58f0623302fde6975668631cf5b0b294716b91b189
d28c56accd73a0c2d4c5a62a288ae12af64ee719ac6060ef2c7ea9be3c5d400f
4abfdb9315d534afdc9907bcf369d15a121e02d40dc772dece65de6ee2ade651
9548c6a9da2d6cee9d27565c0055be4429cabfae9287ab3e525aaba66fd67032
2abb16d594f4b36fc8b8aab8cab7736350421c619cec8e12e8975e87f7a99faa
767b1b32d4ac4cec73967590ca5b28c3e0f4d709c0773e3f4021774f15a2483a
57fcc02e839d4ae0b8965ed55738960a952006f5e70ee1317f2bfacb97a43a5f
2d876129c69f0f4be0c87aeb20cdc38ae8f5db29bea6f87807946b89e0b61a50
285b8a6638f87b87204ba68570315a41570229ce3f7ecb2014437aee9e0d5875
1a1316858bdc617d23e0330ddcde1958d2e95a083fa04020675ad4fb01780c46
486035f5d7f5cffc2c03aee2ecb06252449dc9330cae4b8fb35662010f59eab8
45edd72b7b04c327b5c5278a3074d6e0bccbdf2ece95c524f1e5342bd6910dcf
4996310387ecc6608c106ed08eaa2151f1fbe8f855f4b41c923c05f89e6eafcf
3682691140da912f7a282b23de9aaccffa2ad8178665e6a8ace9d745a8fb8cde
23d45e8af999c98cf3f241fe633ea391f057fe2223ca01a1d403906309defddc
d1a94322d53165f8a59fb1ba9309872100d115f0119dbf6892f75267c45dca92
SH256 hash:
c5f99c7554e532226a84e705b630f4381e284eecc11f21ce5377c4b95a789a3d
MD5 hash:
df4f9cf9ce7a77629187315631e8cffc
SHA1 hash:
d19d4b4dded1efce531cfcced066143396a61d52
Link:
https://www.unpac.me/results/2b640a9b-8e32-468b-8810-47652ec6fd58/
SH256 hash:
64a419709ad219ffc006bda776b650da486d55048d2fa34525f40227da0e5c86
MD5 hash:
88c0ec8398978fa2e4240f02765086ad
SHA1 hash:
5a5c4935b2d70e890c89ad9332365f4f4aa86f3c
Link:
https://www.unpac.me/results/2b640a9b-8e32-468b-8810-47652ec6fd58/
SH256 hash:
285b8a6638f87b87204ba68570315a41570229ce3f7ecb2014437aee9e0d5875
MD5 hash:
a29e2e6bcd5193f8fc813605d8f5970b
SHA1 hash:
b6cd7db78451f4300b1e0ce62aa546862f9e4d5e
Link:
https://www.unpac.me/results/2b640a9b-8e32-468b-8810-47652ec6fd58/
Please 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/285b8a6638f87b87204ba68570315a41570229ce3f7ecb2014437aee9e0d5875

File information

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

Web download

Formbook

Executable exe 285b8a6638f87b87204ba68570315a41570229ce3f7ecb2014437aee9e0d5875

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/948953/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/113152/

Comments