MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c4d096042c9e65f145f6d066277103fdcba41538ccca8827ac3a503a1088df2b. 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 2 File information Comments
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SHA256 hash: c4d096042c9e65f145f6d066277103fdcba41538ccca8827ac3a503a1088df2b
SHA3-384 hash: 8397e5b0e5ef45b6c72506068f852ba52e670f26e92c1b83fafd970c778749b99f9291f230ca2316fb459ad8442ab6e6
SHA1 hash: c9989580844913f0e68a44a263f5d0742c9b9476
MD5 hash: 0998d13b159e59323c22a5157c3f2792
humanhash: nuts-pasta-venus-mockingbird
File name:bank draft.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:726'528 bytes
First seen:2022-01-12 06:20:53 UTC
Last seen:Never
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:r8igCFtPti5qdFu9S+OjXCwnV64gIm4mL20xTUvezrUe/4kS9:zgOxtnFu96jbnsX+L05rWk
TLSH T17AF4E11637E8D902E17DAAF9C9FB54140BB9791A7532CB9C2CCD32CD18A1B904E9178F
File icon (PE):PE icon
dhash icon 00e6d0e74ecbcd23 (4 x Formbook, 4 x AgentTesla, 2 x Loki)
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
251
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
bank draft.exe
Verdict:
Malicious activity
Analysis date:
2022-01-12 06:21:46 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/a7bb6f17-22d4-483a-9d10-8a9e0d5b8fe4

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/218509/
Detection(s):
SecuriteInfo.com.Artemis0998D13B159E.3439.6913.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
DNS request
Sending a custom TCP request
Launching a process
Unauthorized injection to a system process
Gathering data
Result
Verdict:
UNKNOWN
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/9f9ff2de-421a-46fe-ae1d-ea6f7c9969df
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/918916
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
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: CMSTP Execution Process Creation
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 signatures2 2 Behavior Graph ID: 551394 Sample: bank draft.exe Startdate: 12/01/2022 Architecture: WINDOWS Score: 100 36 Found malware configuration 2->36 38 Malicious sample detected (through community Yara rule) 2->38 40 Antivirus detection for URL or domain 2->40 42 9 other signatures 2->42 10 bank draft.exe 3 2->10         started        13 explorer.exe 2->13         started        process3 file4 32 C:\Users\user\AppData\...\bank draft.exe.log, ASCII 10->32 dropped 15 bank draft.exe 10->15         started        18 bank draft.exe 10->18         started        process5 signatures6 52 Modifies the context of a thread in another process (thread injection) 15->52 54 Maps a DLL or memory area into another process 15->54 56 Sample uses process hollowing technique 15->56 58 Queues an APC in another process (thread injection) 15->58 20 explorer.exe 15->20 injected process7 process8 22 cmstp.exe 20->22         started        signatures9 44 Self deletion via cmd delete 22->44 46 Modifies the context of a thread in another process (thread injection) 22->46 48 Maps a DLL or memory area into another process 22->48 50 Tries to detect virtualization through RDTSC time measurements 22->50 25 explorer.exe 2 155 22->25         started        28 cmd.exe 1 22->28         started        process10 dnsIp11 34 192.168.2.1 unknown unknown 25->34 30 conhost.exe 28->30         started        process12
Detection:
xloader
Create hunting rule
Link:
https://mwdb.cert.pl/sample/c4d096042c9e65f145f6d066277103fdcba41538ccca8827ac3a503a1088df2b/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-01-12 03:11:30 UTC
File Type:
PE (.Net Exe)
Extracted files:
2
AV detection:
31 of 43 (72.09%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=ytijmbbmtzs7crpw2btco4id7xf2ifjyztfiqj5mhjidueei34vq._file
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:eb4c loader rat
Link:
https://tria.ge/reports/220112-g4btjabde5/
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
Unpacked files
SH256 hash:
e9e80f4baa8036b669486e9135d8b728cffdfda7f8593aa6419ef651bb0a1964
MD5 hash:
89bd7369bc6b563cdea8b5f0be88e1bb
SHA1 hash:
a1a5447d5bdd13e69373d3c45266a3494d7b1a39
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/39b4c460-c253-4350-adc2-df0b92cc52d5/
Parent samples :
c4d096042c9e65f145f6d066277103fdcba41538ccca8827ac3a503a1088df2b
459c86bf11535b9d62c895a6677a5eb40d8f0cf3136477e5da746045bf3fb6a3
589713496bc1f527bbccff193646a94b310124f01cd15b36f633a8b7d6686fb3
c916349f4538cf30cb73734f5c932c11d826fcf5d097b7afd1bbc6d508131063
SH256 hash:
6d6255e43f8c15ac35d75832b1b8ac911010720326488ca424eee3e0566817c6
MD5 hash:
6fbeffefb041ca0248c2873f8f170127
SHA1 hash:
dc99780c9888bd4855c7fb8c75e95921ecd6a96a
Link:
https://www.unpac.me/results/39b4c460-c253-4350-adc2-df0b92cc52d5/
SH256 hash:
b6db3d3ae0184724a7462a58d758d3df741cd03c84b1c49f1ab18db4b1bd4187
MD5 hash:
895d5b28201fdabe33ef58065f0aa22e
SHA1 hash:
d5b62c114c5fe4a9a3a5c2fb38314e512bf222b4
Link:
https://www.unpac.me/results/39b4c460-c253-4350-adc2-df0b92cc52d5/
SH256 hash:
29c1d0a0123b9e1d0ef4bf17d9a6762827693769e4079e4035fbe4b93a1c700b
MD5 hash:
e60679af3dec9a3faee63e9ce928d602
SHA1 hash:
3fe1c363d8201d6c9c682d9298162ed3ab42bd44
Link:
https://www.unpac.me/results/39b4c460-c253-4350-adc2-df0b92cc52d5/
SH256 hash:
c4d096042c9e65f145f6d066277103fdcba41538ccca8827ac3a503a1088df2b
MD5 hash:
0998d13b159e59323c22a5157c3f2792
SHA1 hash:
c9989580844913f0e68a44a263f5d0742c9b9476
Link:
https://www.unpac.me/results/39b4c460-c253-4350-adc2-df0b92cc52d5/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/c4d096042c9e/report/overview.html
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/c4d096042c9e65f145f6d066277103fdcba41538ccca8827ac3a503a1088df2b

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
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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 c4d096042c9e65f145f6d066277103fdcba41538ccca8827ac3a503a1088df2b

(this sample)

  
Dropped by
Formbook
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/218509/

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