MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 957c5b5a6f0af47354f9ed2d09522fc671b8c0af06e3f3a5b6354e111b2c8129. 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 1 File information Comments
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SHA256 hash: 957c5b5a6f0af47354f9ed2d09522fc671b8c0af06e3f3a5b6354e111b2c8129
SHA3-384 hash: 50b17ed75d42d1e91aa4858c21f51c608ec507109f9dfa1b5f95db254730031a937ff0a3198b60a1d55e58ee62f1e2dd
SHA1 hash: 4bda936ca3dee495b15aee5378a3dc87abd7cdef
MD5 hash: b76684163bc9667e4907b4034a0763c1
humanhash: artist-three-beryllium-fifteen
File name:PO-2021-FV6ppD.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'044'480 bytes
First seen:2021-02-18 08:43:28 UTC
Last seen:2021-02-18 11:05:25 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'650 x AgentTesla, 19'462 x Formbook, 12'203 x SnakeKeylogger)
ssdeep 12288:dhm2ptsj6jRPLjRPqjBjjyjBjBjBjBjLj6Pf71xLtDaGgr2KbA16sCCwpTx9EEWm:oPHLtbx16Smx9Ey75
Threatray 3'806 similar samples on MalwareBazaar
TLSH 0825E4111EA44A01FC7D5B744515D131D3BCACD28A62D27A2AC63C9B39F7E81EF26E0E
Reporter abuse_ch
Tags:exe FormBook


Avatar
abuse_ch
Malspam distributing unidentified malware:

From: RAIDER <greta@bagbnb.com>
Subject: Fw: 回复：RE: R: PAYMENT OF 78,000.00USD
Attachment: PO-2021-FV6ppD.7z (contains "PO-2021-FV6ppD.exe")

Intelligence

File Origin
# of uploads :
2
# of downloads :
106
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/117721/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.545.29767.8703.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %AppData% subdirectories
Sending a UDP request
Result
Verdict:
SUSPICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/611274
Signature
.NET source code contains potential unpacker
C2 URLs / IPs found in malware configuration
Found malware configuration
Injects a PE file into a foreign processes
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
Uses netsh to modify the Windows network and firewall settings
Yara detected AntiVM_3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 354656 Sample: PO-2021-FV6ppD.exe Startdate: 18/02/2021 Architecture: WINDOWS Score: 100 31 www.saxonsproperties.com 2->31 39 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->39 41 Found malware configuration 2->41 43 Malicious sample detected (through community Yara rule) 2->43 45 8 other signatures 2->45 11 PO-2021-FV6ppD.exe 146 16 2->11         started        signatures3 process4 file5 29 C:\Users\user\...\PO-2021-FV6ppD.exe.log, ASCII 11->29 dropped 55 Tries to detect virtualization through RDTSC time measurements 11->55 57 Injects a PE file into a foreign processes 11->57 15 PO-2021-FV6ppD.exe 11->15         started        signatures6 process7 signatures8 59 Modifies the context of a thread in another process (thread injection) 15->59 61 Maps a DLL or memory area into another process 15->61 63 Sample uses process hollowing technique 15->63 65 Queues an APC in another process (thread injection) 15->65 18 explorer.exe 15->18 injected process9 dnsIp10 33 costaricajusta.com 34.102.136.180, 49740, 49746, 80 GOOGLEUS United States 18->33 35 www.fincazalduendo.com 18->35 37 4 other IPs or domains 18->37 47 System process connects to network (likely due to code injection or exploit) 18->47 22 netsh.exe 18->22         started        signatures11 process12 signatures13 49 Modifies the context of a thread in another process (thread injection) 22->49 51 Maps a DLL or memory area into another process 22->51 53 Tries to detect virtualization through RDTSC time measurements 22->53 25 cmd.exe 1 22->25         started        process14 process15 27 conhost.exe 25->27         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/957c5b5a6f0af47354f9ed2d09522fc671b8c0af06e3f3a5b6354e111b2c8129/
Threat name:
ByteCode-MSIL.Backdoor.Androm
Create hunting rule
Status:
Malicious
First seen:
2021-02-18 08:44:08 UTC
AV detection:
12 of 46 (26.09%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=sv6fwwtpbl2hgvhz5uwqsurpyzy3rqfpa3r7hjnwgvhbcgzmqeuq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
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0db69eb6654d1090cb17ab58537a7304e2c269613c0edabf123cf230d289db73
Formbook
0fbe3e570e7074462b9c44528e6a1a3e9a4d02775acf4e9877f4f3ac87cdbd2e
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Formbook
6a0c21a5a37e307becd9ed9bdee0f3f41e3d1a61847a6e9ae272ec891d4f7728
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720ffc99aa96c665aae27db46f776476c37ca113db207790579adfd81c73ad05
Formbook
8c5a90a4c4470d05fff7757920aa0a8bf56edab04f4eb926ba789652f1bfc74c
Formbook
e68f17cfe87742103150ca9abd6cc16581caa6e0e0243d03fae2c89c2609c974
Formbook
f09416ef7aaab2c43c62ef77bb69c005ec4a57d4051586f5e7d8571e74fee41c
Formbook
+ 3'796 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook rat spyware stealer trojan
Link:
https://tria.ge/reports/210218-32clh6jyrx/
Behaviour
Enumerates system info in registry
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Deletes itself
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.roofingchimeyspecialist.com/llc/
Unpacked files
SH256 hash:
b2f91d1427c7b60a3ad485bed04ba75636560783c9265a8f26542d5f6aa5d8a9
MD5 hash:
5ad6dc03137fc80e4e691f4b409d9120
SHA1 hash:
edb38e49ce79ecce33ce9a891df56468c3a4016e
Link:
https://www.unpac.me/results/77aecf69-56ed-447b-85c2-51f27ddb18d5/
SH256 hash:
957c5b5a6f0af47354f9ed2d09522fc671b8c0af06e3f3a5b6354e111b2c8129
MD5 hash:
b76684163bc9667e4907b4034a0763c1
SHA1 hash:
4bda936ca3dee495b15aee5378a3dc87abd7cdef
Link:
https://www.unpac.me/results/77aecf69-56ed-447b-85c2-51f27ddb18d5/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/957c5b5a6f0af47354f9ed2d09522fc671b8c0af06e3f3a5b6354e111b2c8129

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:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFuture
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time

File information

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

Malspam

Formbook

7z ee0cc8f2739f86d2cd0e6c828669d5a235d658ca2ed1ec30cdfa3d5679a63c25

Formbook

Executable exe 957c5b5a6f0af47354f9ed2d09522fc671b8c0af06e3f3a5b6354e111b2c8129

(this sample)

  
Dropped by
MD5 b3506bd6912d30f5087d12786eb93fe2
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 ee0cc8f2739f86d2cd0e6c828669d5a235d658ca2ed1ec30cdfa3d5679a63c25
Cape
Cape
https://www.capesandbox.com/analysis/117721/

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