MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c3d490568e73f61c86d2d4c01e170bdcf3c0d3eb5e309ff3d3fb808a4a867a54. 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: 11


Intelligence 11 IOCs YARA File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c3d490568e73f61c86d2d4c01e170bdcf3c0d3eb5e309ff3d3fb808a4a867a54
SHA3-384 hash: d33d203c6db8f7f35cc5c6adac53e2966e062f82379741abde6c1162402151a3210ed7748613125fe29f4c3de59ec3ea
SHA1 hash: 7b4baec718caa9c5a3aa7cbe1d85121af68f810b
MD5 hash: a08fc6065952b6625893e48a8bc72106
humanhash: single-north-arkansas-saturn
File name:payment advice00000789_pdf.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:887'296 bytes
First seen:2021-01-12 07:23:35 UTC
Last seen:2021-01-12 09:51:54 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:kqDLOLtXH6LBTj6s4cEIOWe0cGGfwDJJuSLNREbHVBNC5:pDiL845VJGuw1JuAWxe
TLSH 0515C00025797F62EA3C97F92645222883F9379F04EDE7744CD270E712B5F865A90ACB
Reporter abuse_ch
Tags:exe FormBook


Avatar
abuse_ch
Malspam distributing Formbook:

HELO: ts20.progressiveline.com
Sending IP: 149.56.84.229
From: Bank of Hope. <kyunghwa.park@bankofhope.com>
Subject: Advice from Bank of Hope
Attachment: payment advice00000789_pdf.arj (contains "payment advice00000789_pdf.exe")

Intelligence

File Origin
# of uploads :
2
# of downloads :
190
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
payment advice00000789_pdf.exe
Verdict:
Malicious activity
Analysis date:
2021-01-12 08:56:45 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/7e025a99-a28e-4fa0-b51f-7d72e60e89af

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/111425/
Detection(s):
SecuriteInfo.com.Trojan.Siggen11.57608.5992.14909.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
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
Setting browser functions hooks
Unauthorized injection to a system process
Unauthorized injection to a browser process
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/578748
Signature
.NET source code contains potential unpacker
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)
Modifies the prolog of user mode functions (user mode inline hooks)
Multi AV Scanner detection for submitted file
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
Yara detected AntiVM_3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 338427 Sample: payment advice00000789_pdf.exe Startdate: 12/01/2021 Architecture: WINDOWS Score: 100 36 cdn.onenote.net 2->36 40 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->40 42 Found malware configuration 2->42 44 Malicious sample detected (through community Yara rule) 2->44 46 9 other signatures 2->46 11 payment advice00000789_pdf.exe 3 2->11         started        signatures3 process4 file5 28 C:\...\payment advice00000789_pdf.exe.log, ASCII 11->28 dropped 14 payment advice00000789_pdf.exe 11->14         started        process6 signatures7 54 Modifies the context of a thread in another process (thread injection) 14->54 56 Maps a DLL or memory area into another process 14->56 58 Sample uses process hollowing technique 14->58 60 Queues an APC in another process (thread injection) 14->60 17 explorer.exe 14->17 injected process8 dnsIp9 30 www.oakhazelnut.com 185.53.177.10, 49757, 80 TEAMINTERNET-ASDE Germany 17->30 32 www.impacttestonlinne.com 81.17.18.194, 49752, 80 PLI-ASCH Switzerland 17->32 34 4 other IPs or domains 17->34 38 System process connects to network (likely due to code injection or exploit) 17->38 21 mstsc.exe 17->21         started        signatures10 process11 signatures12 48 Modifies the context of a thread in another process (thread injection) 21->48 50 Maps a DLL or memory area into another process 21->50 52 Tries to detect virtualization through RDTSC time measurements 21->52 24 cmd.exe 1 21->24         started        process13 process14 26 conhost.exe 24->26         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/c3d490568e73f61c86d2d4c01e170bdcf3c0d3eb5e309ff3d3fb808a4a867a54/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-01-12 07:22:43 UTC
AV detection:
16 of 46 (34.78%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=ypkjavuoop3bzbws2tab4fyl3tz4bu7llyyj746t7oaiusugpjka._file
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook rat spyware stealer trojan
Link:
https://tria.ge/reports/210112-hs5jccmade/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Suspicious use of UnmapMainImage
Suspicious use of SetThreadContext
Deletes itself
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.aftabzahur.com/wgn/
Unpacked files
SH256 hash:
c3d490568e73f61c86d2d4c01e170bdcf3c0d3eb5e309ff3d3fb808a4a867a54
MD5 hash:
a08fc6065952b6625893e48a8bc72106
SHA1 hash:
7b4baec718caa9c5a3aa7cbe1d85121af68f810b
Link:
https://www.unpac.me/results/f6171def-aff1-4471-9863-3769aedc69b9/
SH256 hash:
64a419709ad219ffc006bda776b650da486d55048d2fa34525f40227da0e5c86
MD5 hash:
88c0ec8398978fa2e4240f02765086ad
SHA1 hash:
5a5c4935b2d70e890c89ad9332365f4f4aa86f3c
Link:
https://www.unpac.me/results/f6171def-aff1-4471-9863-3769aedc69b9/
SH256 hash:
7731644d3e49676243cd970ac9f0a3a62b4662f8a6ea52508cb856e749f20b3a
MD5 hash:
4c57690cd4045b693cd93b08693cba95
SHA1 hash:
d16abf6725fbd6684ec8958f54e4a81bb0623b11
Link:
https://www.unpac.me/results/f6171def-aff1-4471-9863-3769aedc69b9/
SH256 hash:
a272312b488605281adfc02fa6678d87a4ee90126c29dd9d860ed333d5702b76
MD5 hash:
cd8056ee3ad184ffa09ef89c092be9df
SHA1 hash:
2f7672deed47d0317e3ada163f4d5f8a13c978a9
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/f6171def-aff1-4471-9863-3769aedc69b9/
Parent samples :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 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/c3d490568e73f61c86d2d4c01e170bdcf3c0d3eb5e309ff3d3fb808a4a867a54

File information

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

Malspam

Formbook

arj 3a36ce7b4b3be0e427a7d3c31644eb842ee6de5f16a22ea695a3211dfee2f67b

Formbook

Executable exe c3d490568e73f61c86d2d4c01e170bdcf3c0d3eb5e309ff3d3fb808a4a867a54

(this sample)

  
Dropped by
MD5 a7ba240b1ab3170ab84be8a385cb9dfe
  
Delivery method
Distributed via e-mail attachment
  
URLhaus
https://urlhaus.abuse.ch/url/954574/
  
Dropped by
SHA256 3a36ce7b4b3be0e427a7d3c31644eb842ee6de5f16a22ea695a3211dfee2f67b
Cape
Cape
https://www.capesandbox.com/analysis/111425/

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