MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b2c216b105f0d625ec3d8fef5744dc11fc21c798fc2b308519cb753555b03ab5. 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: 16


Intelligence 16 IOCs YARA 2 File information Comments
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SHA256 hash: b2c216b105f0d625ec3d8fef5744dc11fc21c798fc2b308519cb753555b03ab5
SHA3-384 hash: 0756070e55ee01218f551689de2bdbf2d9aa38ffae82605d2198fbca03236fe799c3b7aefc37d3c12c38eb1af23104fc
SHA1 hash: 292bc622cc93b7ccb395fa93d9b661a2f9ad03eb
MD5 hash: cd755c1e4bf10d88887f5fcbcc2a231c
humanhash: speaker-kansas-timing-wisconsin
File name:Proforma invoice.pdf.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:501'760 bytes
First seen:2022-04-07 11:18:26 UTC
Last seen:2022-04-07 18:16:07 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'741 x AgentTesla, 19'604 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:ENYE0ZQOA4j2j5NcKi8wZ/e70kv9LZ9Pp:KYEVm2j5NcKi86K0k1LZ9
Threatray 14'664 similar samples on MalwareBazaar
TLSH T12EB4022DFAFBDA22C2A50733A5C5084413F1E7459513E71F6ADD22E95D027970EC2BE2
File icon (PE):PE icon
dhash icon b2cccccce8b2b28a (21 x AgentTesla, 14 x Formbook, 11 x SnakeKeylogger)
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
301
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
Proforma invoice.pdf.exe
Verdict:
Malicious activity
Analysis date:
2022-04-07 11:28:51 UTC
Tags:
formbook trojan stealer
Link:
https://app.any.run/tasks/962d5e39-0ef5-4db6-a5ad-fc8a192dc07d

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/261698/
Detection(s):
SecuriteInfo.com.Trojan.PWS.Stealer.23680.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Sending a custom TCP request
Launching a process
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
control.exe obfuscated packed
Link:
https://www.filescan.io/uploads/624ec8a8d53a7479dacd8160/reports/5dda3001-a46d-462b-ac56-c1d86f86357c/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/c0260c6c-4977-4d86-81af-e1ee9745ca5c
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/972312
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
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: Suspicious Double Extension
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
Uses an obfuscated file name to hide its real file extension (double extension)
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 604799 Sample: Proforma invoice.pdf.exe Startdate: 07/04/2022 Architecture: WINDOWS Score: 100 34 www.danielwisellc.com 2->34 42 Found malware configuration 2->42 44 Malicious sample detected (through community Yara rule) 2->44 46 Antivirus detection for URL or domain 2->46 48 11 other signatures 2->48 11 Proforma invoice.pdf.exe 3 2->11         started        signatures3 process4 file5 32 C:\Users\...\Proforma invoice.pdf.exe.log, ASCII 11->32 dropped 14 Proforma invoice.pdf.exe 11->14         started        17 Proforma invoice.pdf.exe 11->17         started        19 Proforma invoice.pdf.exe 11->19         started        process6 signatures7 60 Modifies the context of a thread in another process (thread injection) 14->60 62 Maps a DLL or memory area into another process 14->62 64 Sample uses process hollowing technique 14->64 66 Queues an APC in another process (thread injection) 14->66 21 explorer.exe 14->21 injected process8 dnsIp9 36 www.faktnews.info 188.114.97.7, 49834, 80 CLOUDFLARENETUS European Union 21->36 38 www.vospaupiettesontlourdes.com 21->38 40 3 other IPs or domains 21->40 50 System process connects to network (likely due to code injection or exploit) 21->50 25 chkdsk.exe 21->25         started        signatures10 process11 signatures12 52 Self deletion via cmd delete 25->52 54 Modifies the context of a thread in another process (thread injection) 25->54 56 Maps a DLL or memory area into another process 25->56 58 Tries to detect virtualization through RDTSC time measurements 25->58 28 cmd.exe 1 25->28         started        process13 process14 30 conhost.exe 28->30         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/b2c216b105f0d625ec3d8fef5744dc11fc21c798fc2b308519cb753555b03ab5/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-04-07 11:19:08 UTC
File Type:
PE (.Net Exe)
Extracted files:
13
AV detection:
20 of 26 (76.92%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=wlbbnmif6dlcl3b5r7xvorg4ch6cdr4y7qvtbbizzn2tkvnqhk2q._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
2522eb074537e2ea01f643fb1d5d4b7f5ab8d3f7cb6524f230ff5521c362cc3f
Formbook
3ea19f45dd5b9c5ed0e6f371d7e92afda076c69e6a43eafc3c83337819eee56a
Formbook
8c1de309eaa9d9a48f92587f93f88304ae1aa48aee62e7ede11893f1ca61775e
Formbook
8dce368d13b52cf207fa4139ed76adb6cc547ab99de8c3f6e5a5cbc6e391d26f
Formbook
99bb3d1c9a2a4dad6465a81df1008b91f5836e51ce0463da76b31f9758dd9b62
Formbook
bc5116cdc710b153d2c32a9ecb5bccd7f3ed3c4cee398b9eba9f482dc5c77cd1
Formbook
c232cf286c8156708491756db96442ab995cdaaea58875a7c63e3e496b30d0cf
Formbook
dc36fc5d4c108d54e3a2a4a5309f87093f484e4bc928158c0a749417052f6f56
Formbook
e07c12a4c17554763b40b0ca410493875bbdd907bc8ba261a732d935e015f852
Formbook
+ 14'654 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:cnt4 loader rat
Link:
https://tria.ge/reports/220407-net25sfcg8/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
Suspicious use of SetThreadContext
Blocklisted process makes network request
Xloader Payload
Xloader
Unpacked files
SH256 hash:
3d10e391c75dbd7aea54fca25d65fc8e8567aacb87410b0a71a50352d722c53c
MD5 hash:
169fef09540f138687bd08584e6eada0
SHA1 hash:
4194e60b7e11dd690c3323b7519747cccc524caf
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/e1e7b473-f0df-4ebd-b5b0-c9b99a2b8321/
Parent samples :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 hash:
bc5d8c78e0aba7322ca3cde7227dccd39eb19a1ee3c68ccb4b2cd45a3020c837
MD5 hash:
f6965e4075ec8567fe7886ccdd03d10a
SHA1 hash:
b3ff0873b7ace821504ace74ef2089a7e34b524f
Link:
https://www.unpac.me/results/e1e7b473-f0df-4ebd-b5b0-c9b99a2b8321/
SH256 hash:
e11871df824c3130e35f2c94d672404e18ebefddf3172d166f2e640ad3686c73
MD5 hash:
4379771ccd9b927712ef2505214161df
SHA1 hash:
6636b7b80e279de67c60b52277f566463afebf8e
Link:
https://www.unpac.me/results/e1e7b473-f0df-4ebd-b5b0-c9b99a2b8321/
SH256 hash:
546f937507e5d2059d0ebe7c8506853e24408bad1cacb61788f5cea67b33f4b9
MD5 hash:
2f465b011f3010eadd18941efea1f1c6
SHA1 hash:
27e6d86a29e523324308a720571a675d379f03c3
Link:
https://www.unpac.me/results/e1e7b473-f0df-4ebd-b5b0-c9b99a2b8321/
SH256 hash:
b2c216b105f0d625ec3d8fef5744dc11fc21c798fc2b308519cb753555b03ab5
MD5 hash:
cd755c1e4bf10d88887f5fcbcc2a231c
SHA1 hash:
292bc622cc93b7ccb395fa93d9b661a2f9ad03eb
Link:
https://www.unpac.me/results/e1e7b473-f0df-4ebd-b5b0-c9b99a2b8321/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/b2c216b105f0/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Formbook
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/b2c216b105f0d625ec3d8fef5744dc11fc21c798fc2b308519cb753555b03ab5

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 b2c216b105f0d625ec3d8fef5744dc11fc21c798fc2b308519cb753555b03ab5

(this sample)

  
Dropped by
Formbook
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/261698/

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