MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5c5f5e9cd06c7c7da03edfc2cd3dd6d45cfdcb5fe1b8e1fbb26fa63c264eb3b6. 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: 10


Intelligence 10 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 5c5f5e9cd06c7c7da03edfc2cd3dd6d45cfdcb5fe1b8e1fbb26fa63c264eb3b6
SHA3-384 hash: 2b459c65e85a4caf70f075d06ea92b8b4961e58b7ade7a96376e04d52833fc6e69f16187f588995a9767f81505bc8408
SHA1 hash: fee1c98a1288d73f6c690b97a366bb1091837583
MD5 hash: ac1b7bad52fe685636ade99c1c206f97
humanhash: london-kilo-lamp-colorado
File name:p027639.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:489'984 bytes
First seen:2020-10-14 15:16:12 UTC
Last seen:2020-10-14 15:57:32 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 6144:r+9jBnQurvvBpUcJgyr4OmKhcNNnEYq91CDrxrcmOmCcmnQVS9yD8O:r+xBNLBTJgEfWvb4mOmQniDb
Threatray 248 similar samples on MalwareBazaar
TLSH DAA4BEBE2056786DC568CF72D1A507C1F93656822FE48D1D3DAEC24C0D2EA1B779232E
Reporter abuse_ch
Tags:exe FormBook Outlook


Avatar
abuse_ch
Malspam distributing Formbook:

HELO: EUR06-AM7-obe.outbound.protection.outlook.com
Sending IP: 40.92.16.74
From: Aurelien Rinadi<beau.nuagee@hotmail.com>
Subject: Order for Umbrella
Attachment: umbrella.r00 (contains "p027639.exe")

Intelligence

File Origin
# of uploads :
2
# of downloads :
81
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/70864/
Detection(s):
SecuriteInfo.com.ArtemisAC1B7BAD52FE.31384.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a file in the %temp% subdirectories
Creating a window
Creating a file
Creating a process from a recently created file
Launching cmd.exe command interpreter
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Unauthorized injection to a system process
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/491244
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Allocates memory in foreign processes
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)
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
Tries to detect virtualization through RDTSC time measurements
Uses netstat to query active network connections and open ports
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 298147 Sample: p027639.exe Startdate: 14/10/2020 Architecture: WINDOWS Score: 100 34 Malicious sample detected (through community Yara rule) 2->34 36 Multi AV Scanner detection for submitted file 2->36 38 Yara detected FormBook 2->38 40 5 other signatures 2->40 10 p027639.exe 8 2->10         started        process3 file4 26 C:\Users\user\AppData\...\InstallUtil.exe, PE32 10->26 dropped 28 C:\Users\user\AppData\...\p027639.exe.log, ASCII 10->28 dropped 30 C:\Users\user\AppData\...\AgileDotNetRT.dll, PE32 10->30 dropped 32 C:\Users\user\AppData\Local\Temp\...\D.dll, PE32 10->32 dropped 48 Writes to foreign memory regions 10->48 50 Allocates memory in foreign processes 10->50 52 Tries to detect virtualization through RDTSC time measurements 10->52 54 Injects a PE file into a foreign processes 10->54 14 InstallUtil.exe 10->14         started        signatures5 process6 signatures7 56 Modifies the context of a thread in another process (thread injection) 14->56 58 Maps a DLL or memory area into another process 14->58 60 Sample uses process hollowing technique 14->60 62 2 other signatures 14->62 17 explorer.exe 14->17 injected process8 process9 19 NETSTAT.EXE 17->19         started        signatures10 42 Modifies the context of a thread in another process (thread injection) 19->42 44 Maps a DLL or memory area into another process 19->44 46 Tries to detect virtualization through RDTSC time measurements 19->46 22 cmd.exe 1 19->22         started        process11 process12 24 conhost.exe 22->24         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/5c5f5e9cd06c7c7da03edfc2cd3dd6d45cfdcb5fe1b8e1fbb26fa63c264eb3b6/
Threat name:
ByteCode-MSIL.Spyware.Noon
Create hunting rule
Status:
Malicious
First seen:
2020-10-14 08:28:35 UTC
AV detection:
23 of 29 (79.31%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=lrpv5hgqnr6h3ib637bm2pow2rop3s274g4od65sn6tdyjsowo3a._file
Verdict:
unknown
Similar samples:
046fd8e4a205a247d179395dd6ee877378bb4afa552ae98cfa5afd5c323b680e
Formbook
1d9958a0a083b0f134bf5c777e6cee112d30f6059e3f7d301cf78e3777b7a637
Formbook
30e5d725ef8367f4d2d044ab45908659b7eda107d02452f6b30a87e4a6a49885
Formbook
39ce81e6ad84dcbf630be5d52c63c633a58018b3292862d1d027dab127fc1a3a
Formbook
7607fe282dd083bc09221a832e4309a259790d3a77b309ddf26d7b3113e1c26e
Formbook
84572ad8dbc3d50c74fecbd6194869f0ef86d98dbf401be16738413022a4752b
Formbook
aad188e844512984d297dc57bf44a14396d19f459d9e0955a8414486c4081edb
Formbook
ba8a06a6f0966f527162f1f1217a08cd67b1b14d23af4d87ffb18385adaf1a98
Formbook
e334c709a414d7ab88c0ce1d12bdf200a8053193da5c9cb757c79ac9d5f4d3b8
Formbook
ec3aa959d7e04528bef389996412273d8aa9d29aa469ec998ff0ad908a7e6051
Formbook
+ 238 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
rat trojan spyware stealer family:formbook
Link:
https://tria.ge/reports/201014-ekz8qpa5yj/
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 SetThreadContext
Loads dropped DLL
Executes dropped EXE
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.elevatedqueensnc.com/ajr/
Unpacked files
SH256 hash:
5c5f5e9cd06c7c7da03edfc2cd3dd6d45cfdcb5fe1b8e1fbb26fa63c264eb3b6
MD5 hash:
ac1b7bad52fe685636ade99c1c206f97
SHA1 hash:
fee1c98a1288d73f6c690b97a366bb1091837583
Link:
https://www.unpac.me/results/246e6902-9028-45f5-a635-4287825ff203/
SH256 hash:
30140c3bf5874d7d184b15513016f9de1524ae95a5efe9a1cb15bad6d6936d64
MD5 hash:
03847d82611bc6461cbb99ca768828f1
SHA1 hash:
39859a3fd3326520dfd1ed10456bb227933a8871
Link:
https://www.unpac.me/results/246e6902-9028-45f5-a635-4287825ff203/
SH256 hash:
89aa143c91d8cace96581d1ad1e4a67060238498168d9e412227019a838574a3
MD5 hash:
beadcc53a3524ce380a7b07b4da47d57
SHA1 hash:
7014b2381ef1ca0f0c8f1b0884315260dc73932f
Link:
https://www.unpac.me/results/246e6902-9028-45f5-a635-4287825ff203/
SH256 hash:
19d9922060be89a70b76e5c0056e751f1baa5d41819235c92cf4f5d7668e1267
MD5 hash:
811864a0b06c529af894a7fec6ddbf47
SHA1 hash:
d35b82933eb06a6ec60e8cbbdb65eb6cdcaeb6d2
Link:
https://www.unpac.me/results/246e6902-9028-45f5-a635-4287825ff203/
Parent samples :
afa2f55e149097f9b250142bbfd94d9d56d10649c96adb079fdb0dfdac7c6660
69e2ae11e1b5cbe120bf02301191a1cf05e87fc09b09d63bd782abbf3615d05d
0b778873c94f6bc89a40294c0e85a38ab82509260cd2a2e8b73d00c5c90e8757
7ddfa6f44a60f4b894321f6977f8121cfb371c3c61ac872c58ba61fd5ee13deb
SH256 hash:
2e62cdc2bcfb40cfadfaaf8f15c5b2cb18d293240c40137506e593b309a2ad00
MD5 hash:
e9b4d866a5fce473853ebe67d7b44344
SHA1 hash:
5a90e25d4b630026faeb4df52f18b4d7ed0e32d7
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/246e6902-9028-45f5-a635-4287825ff203/
Parent samples :
0538ad6e3f92ea13a5a3dadb18e807ce26097bbfd2f473e873a514b6dbbe8f5d
145880ed94e0db3cab65cb54db4728520f1ac5f95ff2b0dda2650233542dd706
bfae046475f1458c460cf4eed534a48c8e769fbfc622138170c3945a4ad61a90
b7859dd4f12959b0c3b717089ddde8f623d288e27d092d93b06afaf9fc4a51d8
1d9958a0a083b0f134bf5c777e6cee112d30f6059e3f7d301cf78e3777b7a637
5c5f5e9cd06c7c7da03edfc2cd3dd6d45cfdcb5fe1b8e1fbb26fa63c264eb3b6
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.80
Link:
https://yomi.yoroi.company/submissions/5c5f5e9cd06c7c7da03edfc2cd3dd6d45cfdcb5fe1b8e1fbb26fa63c264eb3b6

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:Formbook
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Formbook in memory
Reference:internal research
Rule name:win_formbook_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:autogenerated rule brought to you by yara-signator

File information

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

Malspam

Formbook

r00 4becafe8d2b0793ae916d3a3a0d0e59d92408cb0e75640fbcaa6affafa2aca2b

Formbook

Executable exe 5c5f5e9cd06c7c7da03edfc2cd3dd6d45cfdcb5fe1b8e1fbb26fa63c264eb3b6

(this sample)

  
Dropped by
MD5 64dd604d05335508c3e7f23fba5fe2ce
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/70864/
  
Dropped by
SHA256 4becafe8d2b0793ae916d3a3a0d0e59d92408cb0e75640fbcaa6affafa2aca2b

Comments