MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 de1c4a327916e1a5b5d900b4eba280a2ea8455390e3e5e4e4266e2d2aa11d681. 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: 8


Intelligence 8 IOCs YARA 1 File information Comments
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SHA256 hash: de1c4a327916e1a5b5d900b4eba280a2ea8455390e3e5e4e4266e2d2aa11d681
SHA3-384 hash: da036b4019b580f3ae3b3e444e5df74f683fa6b7021a9e2fb4aa9c971ffa06353b5c3360c5169adb1d0a4e50ddbf21e4
SHA1 hash: 62c64c69c227fe6ba00fc9a5abbc4dd6c7d4e4fb
MD5 hash: 17227172c7cba3a9a21834a320442a95
humanhash: monkey-princess-carpet-wisconsin
File name:(G0170-PF3F-20-0260)2T.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:934'400 bytes
First seen:2021-02-22 07:21:54 UTC
Last seen:2021-02-22 08:41:46 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 12288:buyLprmFwk0/vqLyEHPQhUvJh6f1NpQansFeVydP8B5KKZJHDUA7gFn21pd:bpHq2aP8Tq1FeVy+rJJHDUkCnU
Threatray 3'844 similar samples on MalwareBazaar
TLSH 30159C126B88DFADE07EA3355014960E9BF5B816E329DD1F7DD620EF0D61E808761E23
Reporter abuse_ch
Tags:exe FormBook geo KOR


Avatar
abuse_ch
Malspam distributing unidentified malware:

HELO: mail-smail-vm48.hanmail.net
Sending IP: 203.133.180.236
From: 권성록 <sungju8200@hanmail.net>
Subject: 견적문의 드립니다.(권성록 입니다.)
Attachment: G0170-PF3F-20-02602T.cab (contains "(G0170-PF3F-20-0260)2T.exe")

Intelligence

File Origin
# of uploads :
2
# of downloads :
117
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/118226/
Detection(s):
SecuriteInfo.com.MSIL.Kryptik.ZST.8653.12473.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:
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/613826
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
Machine Learning detection for dropped file
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 dropped file
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Scheduled temp file as task from temp location
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 schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM_3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 355925 Sample: (G0170-PF3F-20-0260)2T.exe Startdate: 22/02/2021 Architecture: WINDOWS Score: 100 43 www.lamesaroofing.com 2->43 51 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->51 53 Found malware configuration 2->53 55 Malicious sample detected (through community Yara rule) 2->55 57 14 other signatures 2->57 11 (G0170-PF3F-20-0260)2T.exe 7 2->11         started        signatures3 process4 file5 35 C:\Users\user\AppData\Roaming\OGeEdi.exe, PE32 11->35 dropped 37 C:\Users\user\...\OGeEdi.exe:Zone.Identifier, ASCII 11->37 dropped 39 C:\Users\user\AppData\Local\...\tmp3E81.tmp, XML 11->39 dropped 41 C:\Users\...\(G0170-PF3F-20-0260)2T.exe.log, ASCII 11->41 dropped 61 Tries to detect virtualization through RDTSC time measurements 11->61 15 (G0170-PF3F-20-0260)2T.exe 11->15         started        18 schtasks.exe 1 11->18         started        20 (G0170-PF3F-20-0260)2T.exe 11->20         started        signatures6 process7 signatures8 69 Modifies the context of a thread in another process (thread injection) 15->69 71 Maps a DLL or memory area into another process 15->71 73 Sample uses process hollowing technique 15->73 75 Queues an APC in another process (thread injection) 15->75 22 explorer.exe 15->22 injected 26 conhost.exe 18->26         started        process9 dnsIp10 45 www.catparkas.xyz 188.165.242.45, 49729, 80 OVHFR France 22->45 47 midnightblueinc.com 34.102.136.180, 49742, 80 GOOGLEUS United States 22->47 49 2 other IPs or domains 22->49 59 System process connects to network (likely due to code injection or exploit) 22->59 28 mstsc.exe 22->28         started        signatures11 process12 signatures13 63 Modifies the context of a thread in another process (thread injection) 28->63 65 Maps a DLL or memory area into another process 28->65 67 Tries to detect virtualization through RDTSC time measurements 28->67 31 cmd.exe 1 28->31         started        process14 process15 33 conhost.exe 31->33         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/de1c4a327916e1a5b5d900b4eba280a2ea8455390e3e5e4e4266e2d2aa11d681/
Threat name:
ByteCode-MSIL.Trojan.Pwsx
Create hunting rule
Status:
Malicious
First seen:
2021-02-22 07:22:20 UTC
AV detection:
11 of 47 (23.40%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=3yoeumtzc3q2lnozac2oxiuaulviivjzby7f4tscm3rnfkqr22aq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
1d0aa1485b2e4d3e411e2d2e9ddfc3763120082cc039972770d5aa882fd4cb87
Formbook
1ec5aeccf89c5d7a378e443e742e37f05a2aa7cb71150ee0ca4876c6b37d7b4d
Formbook
393b127088802012cba2a9b9065c17069669c919e6513b34f57d30d12f631d76
Formbook
5d617282230f991221360f213e15b0e62d0c462afc3d32299c9b410658fbb106
Formbook
720ffc99aa96c665aae27db46f776476c37ca113db207790579adfd81c73ad05
Formbook
8c5a90a4c4470d05fff7757920aa0a8bf56edab04f4eb926ba789652f1bfc74c
Formbook
957c5b5a6f0af47354f9ed2d09522fc671b8c0af06e3f3a5b6354e111b2c8129
Formbook
b69927fbfd7eb038b59aa9b7e9f49cb02d127d48fcf6517e65a379e982e806bc
Formbook
e68f17cfe87742103150ca9abd6cc16581caa6e0e0243d03fae2c89c2609c974
Formbook
f09416ef7aaab2c43c62ef77bb69c005ec4a57d4051586f5e7d8571e74fee41c
Formbook
+ 3'834 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/210222-54v4yf1bzx/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Deletes itself
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.midnightblueinc.com/2kf/
Unpacked files
SH256 hash:
e624003658c4f8b349f567c82229fd15d1e63d3d20fe6f7b4388403038cd2a44
MD5 hash:
b6ce7c1d81b9271eab825ea63de154c3
SHA1 hash:
0e7b89555314f8908c1098b652c9bf50e5ecc27b
Link:
https://www.unpac.me/results/d02a651b-c962-468c-9da3-e076cdbceb22/
SH256 hash:
de1c4a327916e1a5b5d900b4eba280a2ea8455390e3e5e4e4266e2d2aa11d681
MD5 hash:
17227172c7cba3a9a21834a320442a95
SHA1 hash:
62c64c69c227fe6ba00fc9a5abbc4dd6c7d4e4fb
Link:
https://www.unpac.me/results/d02a651b-c962-468c-9da3-e076cdbceb22/
Please note that we are no longer able to provide a coverage score for Virus Total.

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

cab 6d64bc9960fd4dc97bdf061d9f89c6eb64f2d8704ca9012d2514688c9825a499

Formbook

Executable exe de1c4a327916e1a5b5d900b4eba280a2ea8455390e3e5e4e4266e2d2aa11d681

(this sample)

  
Dropped by
MD5 00e8ca1c66ce36fffcd54950fef61459
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/118226/
  
Dropped by
SHA256 6d64bc9960fd4dc97bdf061d9f89c6eb64f2d8704ca9012d2514688c9825a499

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