MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 2c81bc76bb2b34fc085a6ff0beb19fda2b1e400ad67341f55185b8d8b7351643. 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 3 File information Comments 1
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SHA256 hash: 2c81bc76bb2b34fc085a6ff0beb19fda2b1e400ad67341f55185b8d8b7351643
SHA3-384 hash: a974d763681cf34f3a7cf482e374404434fbde2fb4a2099d2e607fe8d5f8a5e355ab4f68733b8619483617df6ed9b520
SHA1 hash: eccd14d91fd5b52e7eef3c0ac15bba5240d70264
MD5 hash: b9d342a4738541a830da7c83947e6f61
humanhash: enemy-may-jupiter-india
File name:b9d342a4738541a830da7c83947e6f61
Download: download sample
Signature Formbook
Create hunting rule
File size:516'608 bytes
First seen:2021-11-23 10:14:15 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:hbjk0YR576zHVqbS4MBAiqEZy4/aGLtD00r5wISK/D:hbri2L6d2AiF0QaGLC0
Threatray 11'490 similar samples on MalwareBazaar
TLSH T1C1B4D0A8339072DFC827CE369D605CA4A7313527570BC61BA447029DAE1EA9BDF116F3
Reporter zbetcheckin
Tags:32 exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
85
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Payment Advice Note 22.11.2021.xlsx
Verdict:
Malicious activity
Analysis date:
2021-11-23 08:31:01 UTC
Tags:
encrypted opendir exploit CVE-2017-11882 loader trojan formbook stealer
Link:
https://app.any.run/tasks/0e71fc64-b618-42a5-98eb-2e6ea74647fe

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Gathering data
Detection(s):
SecuriteInfo.com.W32.MSIL_Kryptik.GDO.genEldorado.31229.27294.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
DNS request
Unauthorized injection to a recently created process
Creating a file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
67%
Tags:
fareit obfuscated packed vidar
Link:
https://www.filescan.io/uploads/619cbf2802c80febc2a6f779/reports/93244781-bd4a-4821-9ce0-39b88b409eba/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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/af7ffb02-55a3-40f6-aaad-8a8e8ff640ca
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/894623
Signature
C2 URLs / IPs found in malware configuration
Found malware configuration
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
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 dnsIp2 2 Behavior Graph ID: 527102 Sample: oRHNbi7IaE Startdate: 23/11/2021 Architecture: WINDOWS Score: 100 32 www.pwrsearch.com 2->32 34 www.hikinglifekr.com 2->34 36 2 other IPs or domains 2->36 46 Found malware configuration 2->46 48 Malicious sample detected (through community Yara rule) 2->48 50 Multi AV Scanner detection for submitted file 2->50 52 5 other signatures 2->52 10 oRHNbi7IaE.exe 3 2->10         started        14 explorer.exe 56 2->14         started        signatures3 process4 file5 30 C:\Users\user\AppData\...\oRHNbi7IaE.exe.log, ASCII 10->30 dropped 62 Tries to detect virtualization through RDTSC time measurements 10->62 16 oRHNbi7IaE.exe 10->16         started        signatures6 process7 signatures8 38 Modifies the context of a thread in another process (thread injection) 16->38 40 Maps a DLL or memory area into another process 16->40 42 Sample uses process hollowing technique 16->42 44 Queues an APC in another process (thread injection) 16->44 19 cmd.exe 16->19         started        22 explorer.exe 16->22 injected process9 signatures10 54 Self deletion via cmd delete 19->54 56 Modifies the context of a thread in another process (thread injection) 19->56 58 Maps a DLL or memory area into another process 19->58 60 Tries to detect virtualization through RDTSC time measurements 19->60 24 cmd.exe 1 19->24         started        26 explorer.exe 1 156 19->26         started        process11 process12 28 conhost.exe 24->28         started       
Detection:
xloader
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Link:
https://mwdb.cert.pl/sample/2c81bc76bb2b34fc085a6ff0beb19fda2b1e400ad67341f55185b8d8b7351643/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-11-23 10:15:12 UTC
File Type:
PE (.Net Exe)
Extracted files:
8
AV detection:
26 of 45 (57.78%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
05c36634ef7b938c2494ed619644b03acf1add4bf7802238e7290af9185d3f78
Formbook
1bbc8a34b7590c1593c5a79a8d0f93b17a162f44893c37aa11e4cb9e0e2d96bf
Formbook
26506e7d3f4821066fc1989a5c79afb4d1a316aa428f9e4a920644d93a80b495
Formbook
5d407049f81d3b75bf2d9eb7dc14662f533b1ca37d283e5ef50e001a7ac1f758
Formbook
7716fec715a46b0eb4518d53703b0fc2186e6a473a876de7aee9155ec289f93a
Formbook
84bbdc0b303d03c1ef4ee6d48dedd94181d8fc5650a20b557a555b0917aaf879
Formbook
894f9fa39a5922cc3ec8d79c7957cfacbb99ce27c2b3babdb23e061a5a178ddc
Formbook
bb8e1d48225b002a4da7d0c33051e7fc457e244ed610f536b87702439d978a46
Formbook
c6d6851e1cfe92f14e816a4404fa6f4c822185f2da816f49a39b64b19bf33481
Formbook
+ 11'480 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:hno0 loader rat
Link:
https://tria.ge/reports/211123-l98gxachd9/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Xloader Payload
Xloader
Malware Config
C2 Extraction:
http://www.heidecide.xyz/hno0/
Unpacked files
SH256 hash:
f30ca642597c059f9dbcc6cfea27687245fbcaf5456be0b7a4528d946f3a0a05
MD5 hash:
0f6349011cf5446131faf0cadbace87b
SHA1 hash:
0cd48b5cb5a0ca095043c333c9002ba5273e92e8
Link:
https://www.unpac.me/results/26a53127-11d6-4033-b17d-69687c95378f/
SH256 hash:
042cbcc4fd307fca2fa4de3812f00254db242f863c016acd5a4e1706968f843f
MD5 hash:
3d7b9ccac2dab43f326ee1a40b0fe768
SHA1 hash:
6684523c5657931f5acfb9705099b3144bce1671
Link:
https://www.unpac.me/results/26a53127-11d6-4033-b17d-69687c95378f/
SH256 hash:
e91fb76e13425f9f6253662e380c5bc84196251c9f3969b960d6cbcec79f3d00
MD5 hash:
2dd5b522b207576e74a6e7100367b78a
SHA1 hash:
766051b069420e0539b5a49cf32a72d3cbf44f7a
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/26a53127-11d6-4033-b17d-69687c95378f/
Parent samples :
2c81bc76bb2b34fc085a6ff0beb19fda2b1e400ad67341f55185b8d8b7351643
4c6f60ba070864a86dceaa5785b1dceb395cbe4667b9c539bc0675411b4e16a9
ba10b4ebe4ae3556a1320c7a9b8cb14da16042061c33f1ded73c193cbac8f346
667e8635796cd94ca4161f15f33e8c9d837c7c35a25d583e4f978ad76d9b86f8
87c4a09709a7ba312539673bc4e85e4543d8e1ac4da43ce58adf8635f97f6207
775e97d800d0495cc950870530ddd9fc3a3169b95095c6cba2f29c7b99e0cac1
174efa98c8e09e5ac9d2916509eb3323fa20dd47dd3173ad069a2cb5e17b1852
efaa4527b761b2acb19d40051d303867ce0798ea1e32cf72b4408898d01b463b
SH256 hash:
2c81bc76bb2b34fc085a6ff0beb19fda2b1e400ad67341f55185b8d8b7351643
MD5 hash:
b9d342a4738541a830da7c83947e6f61
SHA1 hash:
eccd14d91fd5b52e7eef3c0ac15bba5240d70264
Link:
https://www.unpac.me/results/26a53127-11d6-4033-b17d-69687c95378f/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/2c81bc76bb2b/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/2c81bc76bb2b34fc085a6ff0beb19fda2b1e400ad67341f55185b8d8b7351643

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: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.

Web download

Formbook

Executable exe 2c81bc76bb2b34fc085a6ff0beb19fda2b1e400ad67341f55185b8d8b7351643

(this sample)

  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/208641/
  
URLhaus
https://urlhaus.abuse.ch/url/1808550/

Comments


Avatar
zbet commented on 2021-11-23 10:14:19 UTC

url : hxxp://52.56.119.158/www1/ckim.exe