MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c40018a8c58d463f829a97d5c5280c2b5292573cbd321f042e7225db4bff6d95. 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: 16


Intelligence 16 IOCs YARA 2 File information Comments
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SHA256 hash: c40018a8c58d463f829a97d5c5280c2b5292573cbd321f042e7225db4bff6d95
SHA3-384 hash: 835e2d5d1e0040ae099b46387c95167ae8ff2772c33e837c55e406383701c305f69a07da3bfefb105efb546cef2ef6cd
SHA1 hash: df09b761005eba5e45cc3c1503cf2761077d4c49
MD5 hash: 862a815ffdf58d6c2ae62a2948658e74
humanhash: finch-mockingbird-enemy-video
File name:DOC001876543456781987651000_PDF .EXE
Download: download sample
Signature Formbook
Create hunting rule
File size:877'568 bytes
First seen:2022-06-03 13:35:21 UTC
Last seen:2022-06-03 13:36:07 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'608 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:L2/pKmJAagHvRnAmqgc/SdORHmV1ujAcV0szEZbnRQuNbNhPDDSXG:L2/pL+RvCT/SoRHmKgszEZNZH4G
TLSH T143157B4339DC47DDD5A306F66C71F320212E7E0F86959E8ABED3AA0D94602C946792CF
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon ecec889ce6d8e8f0 (40 x Formbook, 21 x AgentTesla, 12 x SnakeKeylogger)
Reporter cocaman
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
414
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
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ID:
1
File name:
DOC001876543456781987651000_PDF .EXE
Verdict:
Malicious activity
Analysis date:
2022-06-03 13:38:26 UTC
Tags:
formbook trojan stealer
Link:
https://app.any.run/tasks/6e461a7c-f136-481a-a3db-c6ae7787e332

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/276542/
Detection(s):
SecuriteInfo.com.Trojan.GenericKD.50375564.10771.24020.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Unauthorized injection to a recently created process
Creating a file
Launching a process
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
anti-debug anti-vm control.exe obfuscated packed replace.exe
Link:
https://www.filescan.io/uploads/629a0e598f4ade68c4ea7fd1/reports/370899c6-227c-460e-9190-ad7cadd0aa10/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.
Malware family:
Formbook
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/f5830eb0-7734-4852-96ae-ca35d20705ad
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1006363
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
Initial sample is a PE file and has a suspicious name
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 or bat file
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Uses an obfuscated file name to hide its real file extension (a lot of spaces)
Uses ipconfig to lookup or modify the Windows network settings
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 638858 Sample: DOC001876543456781987651000... Startdate: 03/06/2022 Architecture: WINDOWS Score: 100 33 www.cloudinfra-demo1.net 2->33 37 Found malware configuration 2->37 39 Malicious sample detected (through community Yara rule) 2->39 41 Antivirus detection for URL or domain 2->41 43 8 other signatures 2->43 11 DOC001876543456781987651000_PDF                                         .EXE 3 2->11         started        signatures3 process4 file5 31 DOC001876543456781...           .EXE.log, ASCII 11->31 dropped 14 DOC001876543456781987651000_PDF                                         .EXE 11->14         started        process6 signatures7 53 Modifies the context of a thread in another process (thread injection) 14->53 55 Maps a DLL or memory area into another process 14->55 57 Sample uses process hollowing technique 14->57 59 Queues an APC in another process (thread injection) 14->59 17 explorer.exe 14->17 injected process8 signatures9 35 Uses ipconfig to lookup or modify the Windows network settings 17->35 20 ipconfig.exe 17->20         started        23 autochk.exe 17->23         started        25 autochk.exe 17->25         started        process10 signatures11 45 Self deletion via cmd or bat file 20->45 47 Modifies the context of a thread in another process (thread injection) 20->47 49 Maps a DLL or memory area into another process 20->49 51 Tries to detect virtualization through RDTSC time measurements 20->51 27 cmd.exe 1 20->27         started        process12 process13 29 conhost.exe 27->29         started       
Detection:
xloader
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Link:
https://mwdb.cert.pl/sample/c40018a8c58d463f829a97d5c5280c2b5292573cbd321f042e7225db4bff6d95/
Threat name:
Win32.Trojan.AgentTesla
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Status:
Malicious
First seen:
2022-06-03 09:55:02 UTC
File Type:
PE (.Net Exe)
Extracted files:
13
AV detection:
20 of 26 (76.92%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=yqabrkgfrvdd7au2s7k4kkamfnjjevz4xuzb6bboois5ws77nwkq._file
Verdict:
malicious
Label(s):
formbook
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Result
Malware family:
xloader
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Score:
  10/10
Tags:
family:xloader campaign:b6qc loader persistence rat suricata
Link:
https://tria.ge/reports/220603-qv8atafhb3/
Behaviour
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Drops file in Program Files directory
Suspicious use of SetThreadContext
Deletes itself
Adds policy Run key to start application
Xloader Payload
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
b6d0cb02eb83a2d9962b0ba51cd6a2708f77442e4341e162e15c2ff8b4fa5c2a
MD5 hash:
5f77be289fe4de9abdd118e5c471b6bc
SHA1 hash:
a7ddbb3a6dde6df64698a96f4bdcbee20ca1e9b9
Detections:
win_formbook_g0
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win_formbook_auto
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Link:
https://www.unpac.me/results/708dcfc7-85e2-41cb-971e-3a485f99e0d0/
Parent samples :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 hash:
1eb0bad3fea0db2e3fdd1ff0848dec83957108760373b1fd78c6511fe60bad71
MD5 hash:
6005387009ef0b9e4a8b53256f789fab
SHA1 hash:
7bcbb9005e5ee2fa61874e3d55cd2a2943e2b8ee
Link:
https://www.unpac.me/results/708dcfc7-85e2-41cb-971e-3a485f99e0d0/
SH256 hash:
0a8dfbc6378effa73e39b30c414e7e18530a94fb44d29126345688667c307a0e
MD5 hash:
fd0aa59cd3380e81078fa5b698e2e317
SHA1 hash:
2f030f19b3ba4f297eb3260c6659ddea539741a3
Link:
https://www.unpac.me/results/708dcfc7-85e2-41cb-971e-3a485f99e0d0/
SH256 hash:
879c29560b21be7d9b69ca27ca4756df86e080fa3e34cb191aad5cb1e5f05504
MD5 hash:
30b6a54a992eae921a2eb8c5ea130911
SHA1 hash:
1c83f0319bffe007077c6656418c9b7344d5affe
Link:
https://www.unpac.me/results/708dcfc7-85e2-41cb-971e-3a485f99e0d0/
SH256 hash:
c40018a8c58d463f829a97d5c5280c2b5292573cbd321f042e7225db4bff6d95
MD5 hash:
862a815ffdf58d6c2ae62a2948658e74
SHA1 hash:
df09b761005eba5e45cc3c1503cf2761077d4c49
Link:
https://www.unpac.me/results/708dcfc7-85e2-41cb-971e-3a485f99e0d0/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/c40018a8c58d/report/overview.html
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/c40018a8c58d463f829a97d5c5280c2b5292573cbd321f042e7225db4bff6d95

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: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.

Malspam

Formbook

img 661eda3234e1b3b497701920414c03108188d4e4cadc8a3de7dbda17753c9e09

Formbook

Executable exe c40018a8c58d463f829a97d5c5280c2b5292573cbd321f042e7225db4bff6d95

(this sample)

  
Delivery method
Other
  
Dropped by
SHA256 661eda3234e1b3b497701920414c03108188d4e4cadc8a3de7dbda17753c9e09
Cape
Cape
https://www.capesandbox.com/analysis/276542/
  
Dropped by
MD5 4ad9a15626677976b84e54ea4dde0420

Comments