MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c0aca9838fde50ce7f8d57a322812fe457914e6cd0f06337664b959c8f8bfd52. 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 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c0aca9838fde50ce7f8d57a322812fe457914e6cd0f06337664b959c8f8bfd52
SHA3-384 hash: a169160c2336bb0b975d7924a4fc9305bde762a8536798483fe0818eea5500a80369225bc320b0dc619a0d4cb3aa27f2
SHA1 hash: 95cceba08a5fcbf2b75087d9f55915f0ac551dda
MD5 hash: dc0937b48180d7776a17cee3da262a67
humanhash: michigan-jupiter-mockingbird-mobile
File name:NZLTAO22000450电子保单.pdf.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:914'432 bytes
First seen:2022-05-01 19:37:17 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 24576:RlTDdWZGDno6dilL0MF5sMEK0cwsXCgir8:Rg6no6deFCME3Hs3ir
Threatray 15'172 similar samples on MalwareBazaar
TLSH T17D15F11522F94F14E17E57F241B84230AB36760A645FE32D8DC164EB0E767828B8BB5F
TrID 64.2% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.5% (.SCR) Windows screen saver (13101/52/3)
9.2% (.EXE) Win64 Executable (generic) (10523/12/4)
5.7% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.9% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter cocaman
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
293
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
NZLTAO22000450电子保单.pdf.exe
Verdict:
Suspicious activity
Analysis date:
2022-05-01 19:38:59 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/425ecf4a-39cf-4c3c-bce5-878e675d17a2

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/268119/
Detection(s):
SecuriteInfo.com.W32.AIDetectNet.01.1633.5674.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
DNS request
Sending a custom TCP request
Launching the default Windows debugger (dwwin.exe)
Creating a process with a hidden window
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed replace.exe update.exe
Link:
https://www.filescan.io/uploads/626ee1780d3e2bd52d1d3d79/reports/ccd85b16-d248-40f9-807e-230ecfc6bd5a/overview
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/77149f22-8a0e-49ec-87e5-e5bdbdb11bff
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/986193
Signature
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)
Multi AV Scanner detection for submitted file
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
Detection:
xloader
Create hunting rule
Link:
https://mwdb.cert.pl/sample/c0aca9838fde50ce7f8d57a322812fe457914e6cd0f06337664b959c8f8bfd52/
Threat name:
Win32.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-05-01 15:53:37 UTC
File Type:
PE (.Net Exe)
Extracted files:
48
AV detection:
18 of 26 (69.23%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=ycwkta4p3zim474nk6rsfajp4rlzcttm2dyggn3gjokzzd4l7vja._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
06413191f73628949b030b8a40c9db6a65487beed5d1d3c8e7e70af666ae538d
Formbook
3be0ec47961daf00ad70c778e46eb97964a4a0c53b281e3ae7828c2ee79e0f62
Formbook
6ff40b2ed84520e3135881c7a31a49f2a0952e1ed7a9739527b1619bcb6ec8f8
Formbook
7b25cfa3fd8510d716490999e1fb90d79330f8e852aa2d539060e4768ffcf058
Formbook
898b47cb2e4d16a7325de16aae14c3c66894467ece923e706c186ee9ab75799b
Formbook
97e3431b489d64fb200c178334d0229cea2495e7f01856ac8571e4f085636b73
Formbook
de730251e1e204e4ee22464f4638e2baa2c64ee9a9520180443f593497678c58
Formbook
+ 15'162 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  9/10
Tags:
n/a
Link:
https://tria.ge/reports/220501-ycc1ysdgh4/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
CustAttr .NET packer
Unpacked files
SH256 hash:
bc110d7bae12529cdc1e25394cfdfe68afbb960b7fc4bb7e807be92ed2c14479
MD5 hash:
53ee1d9de63729396cea5156950dbcb6
SHA1 hash:
20fc3377e7f481ad067ffc410e42a9469d041c03
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/8a822116-fac7-4146-9edf-83ca1d6a09ba/
Parent samples :
de730251e1e204e4ee22464f4638e2baa2c64ee9a9520180443f593497678c58
9a89f7d24e1bc1ca09e2a9ed6b123a5e34fd963b5ced315c49e2bce5ed6b4bcb
3be0ec47961daf00ad70c778e46eb97964a4a0c53b281e3ae7828c2ee79e0f62
cd36d02294b8ffd6ba8dfa8966dd74b69f4af77a3ad3e5e8688b22cba6d7802a
621b174ac7de9b3b3b7698769ba6a83577db9453c8a93da26491d0cbfadf9f62
c0aca9838fde50ce7f8d57a322812fe457914e6cd0f06337664b959c8f8bfd52
304602b81a7a20873c7e72eec0d2c97b5994890910db8f7f0e05025d468bed86
SH256 hash:
86f236ffbd6d388a1655676f86198c50f468b2e8c14ad115857c217e8bbe4dfe
MD5 hash:
aa03f1ee4460e6ba3a370ef3c8f393dd
SHA1 hash:
d2977af59fa5db8117b74ccc12973f2fef3931cd
Link:
https://www.unpac.me/results/8a822116-fac7-4146-9edf-83ca1d6a09ba/
SH256 hash:
b0aaf5131cd40c7e2595f9ba94dd68d51f22981a88edfcfcf862f71bb78ae783
MD5 hash:
5170d50c67b83f0f35981e824a1c9778
SHA1 hash:
bc0b85ff475af189b51bb9d074f201634caae75a
Link:
https://www.unpac.me/results/8a822116-fac7-4146-9edf-83ca1d6a09ba/
SH256 hash:
f557ce2016a8ae1725b152d1d7c80f646b21ef1009cd8b09c2775d6c20dfa0bd
MD5 hash:
c59dae9280d88564e053f4d7e032d5ca
SHA1 hash:
24cdaa3881d79dbb8a49f941e53ae7a1a70510ef
Link:
https://www.unpac.me/results/8a822116-fac7-4146-9edf-83ca1d6a09ba/
SH256 hash:
c0aca9838fde50ce7f8d57a322812fe457914e6cd0f06337664b959c8f8bfd52
MD5 hash:
dc0937b48180d7776a17cee3da262a67
SHA1 hash:
95cceba08a5fcbf2b75087d9f55915f0ac551dda
Link:
https://www.unpac.me/results/8a822116-fac7-4146-9edf-83ca1d6a09ba/
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/c0aca9838fde50ce7f8d57a322812fe457914e6cd0f06337664b959c8f8bfd52

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: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

r00 30f412d4a278f0eec2f610da6a4860030629c3813d6a3957b6a6ca7f286eaf61

Formbook

Executable exe c0aca9838fde50ce7f8d57a322812fe457914e6cd0f06337664b959c8f8bfd52

(this sample)

  
Delivery method
Other
  
Dropped by
SHA256 30f412d4a278f0eec2f610da6a4860030629c3813d6a3957b6a6ca7f286eaf61
Cape
Cape
https://www.capesandbox.com/analysis/268119/
  
Dropped by
MD5 90d549c26c0562166d252c1374415384

Comments