MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 2449800b54909498a549817cc5bd9b8fc610a0d7ef6fd2bfda0d370783da8d32. 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 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 2449800b54909498a549817cc5bd9b8fc610a0d7ef6fd2bfda0d370783da8d32
SHA3-384 hash: 87969cc2ed4a6e73e1fb3a3dcdc2d5f9d17a0599ddf18876f948cfa3c755a9475a387f3b1beb889b309b977c63c83adb
SHA1 hash: f39ae8144d690f439d5eda69c74bfe6ed9de4513
MD5 hash: 2178794f0f12d01f85d909a5131e12c8
humanhash: cup-louisiana-four-alabama
File name:13012021.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'091'584 bytes
First seen:2021-01-13 07:42:53 UTC
Last seen:2021-01-13 09:38:53 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'653 x AgentTesla, 19'464 x Formbook, 12'205 x SnakeKeylogger)
ssdeep 12288:rI33EOCNuqzcLcL8Jyoph3LYTVDJSGA+pEHABkAK1wHZz1:rJOW/zcLcYyop1EbA+SABkA3b
TLSH A5352A40BBD85700F3BD27BC693040615BF5FB55EAB9E31CF86C506A1BA2E5480BE762
Reporter abuse_ch
Tags:exe FormBook geo KOR


Avatar
abuse_ch
Malspam distributing Formbook:

HELO: mail-smail-vm47.hanmail.net
Sending IP: 203.133.180.235
From: A-SEONG CO.,LTD <kimsister22@hanmail.net>
Subject: 주문서화일첨부합니다.
Attachment: A-SEONG CO.,LTD.cab (contains "13012021.exe")

Intelligence

File Origin
# of uploads :
2
# of downloads :
190
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
13012021.exe
Verdict:
Malicious activity
Analysis date:
2021-01-13 09:08:48 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/4f76a9f1-0a44-49ff-93ef-91705bc2a0c5

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/111751/
Detection(s):
SecuriteInfo.com.Artemis2178794F0F12.32197.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Unauthorized injection to a recently created process
Creating a file
Launching a process
Launching cmd.exe command interpreter
Unauthorized injection to a system process
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.
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/579890
Signature
.NET source code contains potential unpacker
Found malware configuration
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
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
Yara detected AntiVM_3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 338991 Sample: 13012021.exe Startdate: 13/01/2021 Architecture: WINDOWS Score: 100 35 www.sydiifinancial.com 2->35 37 sydiifinancial.com 2->37 45 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->45 47 Found malware configuration 2->47 49 Malicious sample detected (through community Yara rule) 2->49 51 7 other signatures 2->51 11 13012021.exe 3 2->11         started        signatures3 process4 file5 33 C:\Users\user\AppData\...\13012021.exe.log, ASCII 11->33 dropped 61 Tries to detect virtualization through RDTSC time measurements 11->61 63 Injects a PE file into a foreign processes 11->63 15 13012021.exe 11->15         started        18 13012021.exe 11->18         started        20 13012021.exe 11->20         started        signatures6 process7 signatures8 65 Modifies the context of a thread in another process (thread injection) 15->65 67 Maps a DLL or memory area into another process 15->67 69 Sample uses process hollowing technique 15->69 71 Queues an APC in another process (thread injection) 15->71 22 explorer.exe 15->22 injected process9 dnsIp10 39 independencepartynyc.com 34.102.136.180, 49748, 49754, 49755 GOOGLEUS United States 22->39 41 td-balancer-euw2-6-109.wixdns.net 35.246.6.109, 49753, 80 GOOGLEUS United States 22->41 43 11 other IPs or domains 22->43 53 System process connects to network (likely due to code injection or exploit) 22->53 26 chkdsk.exe 22->26         started        signatures11 process12 signatures13 55 Modifies the context of a thread in another process (thread injection) 26->55 57 Maps a DLL or memory area into another process 26->57 59 Tries to detect virtualization through RDTSC time measurements 26->59 29 cmd.exe 1 26->29         started        process14 process15 31 conhost.exe 29->31         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/2449800b54909498a549817cc5bd9b8fc610a0d7ef6fd2bfda0d370783da8d32/
Threat name:
Win32.Trojan.CrypterX
Create hunting rule
Status:
Malicious
First seen:
2021-01-13 07:43:15 UTC
AV detection:
4 of 46 (8.70%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=ereyac2usckjrjkjqf6mlpm3r7dbbigx55x5fp62bu3qpa62ruza._file
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook rat spyware stealer trojan
Link:
https://tria.ge/reports/210113-3bj9546pxa/
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 UnmapMainImage
Suspicious use of SetThreadContext
Deletes itself
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.timoniks.com/rbg/
Unpacked files
SH256 hash:
2449800b54909498a549817cc5bd9b8fc610a0d7ef6fd2bfda0d370783da8d32
MD5 hash:
2178794f0f12d01f85d909a5131e12c8
SHA1 hash:
f39ae8144d690f439d5eda69c74bfe6ed9de4513
Link:
https://www.unpac.me/results/8c1c1c12-a012-41a8-92f5-36dfbd22e48b/
SH256 hash:
296620e9308a1069ca98d27c426f25f5c1f87d9240bb371c657571034b0261b5
MD5 hash:
4cf24d41a7882216740280e3294cb853
SHA1 hash:
6bcb31d3dc0a7d71da1067a628168664202769a4
Link:
https://www.unpac.me/results/8c1c1c12-a012-41a8-92f5-36dfbd22e48b/
SH256 hash:
d8c6a8d5e1e22becd5856e0b031c529589378c8591cf0d24837f343ffbb9c663
MD5 hash:
450b49a5b2714c7671d71640c1577eb2
SHA1 hash:
95a718117decce0cc553097cc49410f97464061f
Link:
https://www.unpac.me/results/8c1c1c12-a012-41a8-92f5-36dfbd22e48b/
SH256 hash:
c347153fdef49fe1c7937bfe439e51c771923677a4b7a5578bd8b88a5e2fc9b2
MD5 hash:
92e611e075c477df421bb505f311dce5
SHA1 hash:
28a969df0932dec813ac1f61184d1e5d98d2014e
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/8c1c1c12-a012-41a8-92f5-36dfbd22e48b/
Parent samples :
fa1e4180024c1bb17610a4c0d6d3fd40b863c34016b131f1ce08fbcc140ce257
ae73e8799690e6e7efe2222fe8a471af2c7f7f0f82dff259434626eac35a2721
931f6aeff35cea88af521bc2cdca24164113c47ab3153e148e33d5bce66313f4
2449800b54909498a549817cc5bd9b8fc610a0d7ef6fd2bfda0d370783da8d32
9a9ac9671ba6e6954776498cf28264d6c1742bc52fb070d7736d83a3582a14c8
e10a18344876f44eea40708f80322df6ec17eea4fec0b7de74c97aab23421600
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Kryptik
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/2449800b54909498a549817cc5bd9b8fc610a0d7ef6fd2bfda0d370783da8d32

File information

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

Malspam

Formbook

cab 9e46e989910f7b4ab8f51fc2df12d74f9c7ee48a57444f9330a0a98b35f5cb16

Formbook

Executable exe 2449800b54909498a549817cc5bd9b8fc610a0d7ef6fd2bfda0d370783da8d32

(this sample)

  
Dropped by
MD5 55fac1f711a47375eb4c2e1167f874ad
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 9e46e989910f7b4ab8f51fc2df12d74f9c7ee48a57444f9330a0a98b35f5cb16
Cape
Cape
https://www.capesandbox.com/analysis/111751/

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