MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c0a5470477f1ef65286a66e14b46c02b71c41eabc473b9885fbe7911844d90b7. 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: c0a5470477f1ef65286a66e14b46c02b71c41eabc473b9885fbe7911844d90b7
SHA3-384 hash: 04217fa4d3557872a46b9aca6265f211c2158b86377ed3249c7407cf21553d2244a8e82db07d5c101ad1c886105ecb48
SHA1 hash: fbe936019b2596e65ff25cb46abdb0f48fa93464
MD5 hash: 939ab865c8b7be3fdfaf765139a62f02
humanhash: colorado-cat-massachusetts-island
File name:Purchase Order FEB22_76543.exe
Download: download sample
Signature Formbook
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File size:614'912 bytes
First seen:2022-02-18 06:48:17 UTC
Last seen:2022-02-18 09:03:10 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:CfCMTpM2K777777777777uHJ4aPcmGxMd6kYkMRONlDrI9DpVP8HxhkRg4vH:CqMS2K777777777777up4atZYkMRONx+
TLSH T157D4B0D48577C9BAC87505BCF02051442FB6AE9E9703F3ADE88CB8794870B825BD6937
File icon (PE):PE icon
dhash icon b0cf4a4c4c4ccfb0 (31 x Formbook, 20 x RemcosRAT, 18 x AgentTesla)
Reporter lowmal3
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
220
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/242441/
Detection(s):
SecuriteInfo.com.Variant.Barys.3660.22106.13809.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Creating a file
Сreating synchronization primitives
Searching for synchronization primitives
Launching a process
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
cmd.exe netsh.exe obfuscated packed replace.exe
Link:
https://www.filescan.io/uploads/620f4160a2660f3bb9f8c231/reports/baccce05-7a90-494b-8b9e-8153d3145a64/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.
Gathering data
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/942040
Signature
.NET source code contains potential unpacker
.NET source code contains very large strings
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
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
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Self deletion via cmd delete
Sigma detected: CMSTP Execution Process Creation
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 AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 574518 Sample: Purchase Order FEB22_76543.exe Startdate: 18/02/2022 Architecture: WINDOWS Score: 100 34 Found malware configuration 2->34 36 Malicious sample detected (through community Yara rule) 2->36 38 Antivirus detection for URL or domain 2->38 40 11 other signatures 2->40 10 Purchase Order FEB22_76543.exe 3 2->10         started        process3 file4 30 C:\...\Purchase Order FEB22_76543.exe.log, ASCII 10->30 dropped 52 Injects a PE file into a foreign processes 10->52 14 Purchase Order FEB22_76543.exe 10->14         started        17 Purchase Order FEB22_76543.exe 10->17         started        signatures5 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 19 explorer.exe 14->19 injected process8 dnsIp9 32 www.5t45urfgurkhgbvkhbuh.com 54.178.81.125, 80 AMAZON-02US United States 19->32 42 System process connects to network (likely due to code injection or exploit) 19->42 23 cmstp.exe 19->23         started        signatures10 process11 signatures12 44 Self deletion via cmd delete 23->44 46 Modifies the context of a thread in another process (thread injection) 23->46 48 Maps a DLL or memory area into another process 23->48 50 Tries to detect virtualization through RDTSC time measurements 23->50 26 cmd.exe 1 23->26         started        process13 process14 28 conhost.exe 26->28         started       
Detection:
xloader
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Link:
https://mwdb.cert.pl/sample/c0a5470477f1ef65286a66e14b46c02b71c41eabc473b9885fbe7911844d90b7/
Threat name:
Win32.Trojan.FormBook
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Status:
Malicious
First seen:
2022-02-18 06:49:08 UTC
File Type:
PE (.Net Exe)
Extracted files:
21
AV detection:
19 of 28 (67.86%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ycsuobdx6hxwkkdkm3quwrwafny4ihvlyrz3tcc7xz4rdbcnsc3q._file
Verdict:
malicious
Label(s):
formbook
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Result
Malware family:
xloader
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Score:
  10/10
Tags:
family:xloader campaign:zqzw loader rat
Link:
https://tria.ge/reports/220218-hlctjsbhc2/
Behaviour
Checks processor information in registry
Modifies data under HKEY_USERS
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
Drops file in Windows directory
Suspicious use of SetThreadContext
Deletes itself
Xloader Payload
Xloader
Unpacked files
SH256 hash:
79ae0b03c7fb13f978ce4d5240f8ac11d7df67fa21d870dd77fc7566685c2ec2
MD5 hash:
b1e1ec5c090c44cf46751f1a1ec609b6
SHA1 hash:
ae8c65bfa078322b1f6ff8fec4361373edaf01a5
Detections:
win_formbook_g0
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win_formbook_auto
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Link:
https://www.unpac.me/results/078b660f-2364-41bf-9635-23ccf93ae28e/
Parent samples :
82ca37f8d0b630ec22f7b60a7ce6e5e8490ca703f240b0db10b2e6e014c5d4ab
e8232a6b14f66804622f2ea2bfd8c2d8bfe5eef292f664c5801844b96a84d125
2a170cc5086a00b41ce8ff4bcf8fce45f85aef342d4cf4d08f018943cc5221ac
fa0c54af42af10dbb34626554f789c0d00d392a6bca0017f97babda9e17ef785
ed99b5652455f1287171fd7d49a5ac69add7ed72a08712d4c66f6474fd094615
08e2b0e469f2809991e59e65177fe994f3aeeea601a2af8aec6c7ae1406debb0
cd4ee025ad3406b7e572952d42465eee19649cef6c0d3a6acbb0e972096988f4
670a250601cc6d66fe3491438274b4a3de650b7283525caf699ab7d81ff93b93
3c6a613507d90d332e2d4d7f91c7c2ef3135e464e5937b1da1a9c4f749528343
c0a5470477f1ef65286a66e14b46c02b71c41eabc473b9885fbe7911844d90b7
SH256 hash:
3ea0c66909c20877ba250010a59fea07464a6c392c1f515325658bb1fcf75020
MD5 hash:
ed8877276d1021c6042339421b3160ce
SHA1 hash:
a31728ae08018ddd53bc8c600f373db74642849e
Link:
https://www.unpac.me/results/078b660f-2364-41bf-9635-23ccf93ae28e/
SH256 hash:
79823e47436e129def4fba8ee225347a05b7bb27477fb1cc8be6dc9e9ce75696
MD5 hash:
39f524c1ab0eb76dfd79b2852e5e8c39
SHA1 hash:
428018e1701006744e34480b0029982a76d8a57d
Link:
https://www.unpac.me/results/078b660f-2364-41bf-9635-23ccf93ae28e/
SH256 hash:
c0a5470477f1ef65286a66e14b46c02b71c41eabc473b9885fbe7911844d90b7
MD5 hash:
939ab865c8b7be3fdfaf765139a62f02
SHA1 hash:
fbe936019b2596e65ff25cb46abdb0f48fa93464
Link:
https://www.unpac.me/results/078b660f-2364-41bf-9635-23ccf93ae28e/
Malware family:
XLoader
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Verdict:
Malicious
Link:
https://www.vmray.com/analyses/c0a5470477f1/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.71
Link:
https://yomi.yoroi.company/submissions/c0a5470477f1ef65286a66e14b46c02b71c41eabc473b9885fbe7911844d90b7

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
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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 c0a5470477f1ef65286a66e14b46c02b71c41eabc473b9885fbe7911844d90b7

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/242441/

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