MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 dfc0ab6c112746d539f78d2db06430e4058584c6c54951c4420d1c98f32d11d7. 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: 14


Intelligence 14 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: dfc0ab6c112746d539f78d2db06430e4058584c6c54951c4420d1c98f32d11d7
SHA3-384 hash: 603361b974d80b9ea37dd575940e5751425df47e167e8f6bc35c6a2156ffaa655d8c0c2f70fc3fc53847886a417a071f
SHA1 hash: b4e63c9f31043f728100de6d24a412266ba27eda
MD5 hash: 8cf9409e06e15fd23314055eb18be57d
humanhash: louisiana-jupiter-tennessee-stairway
File name:PO_39482.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:993'280 bytes
First seen:2022-05-15 21:15:49 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:umJDfxt7J0p09dRZxPsXoqTfltuz3NOa9X5OAEn4G4Zj/:B2q9dR7lkNtuzxcCj
TLSH T106257C40B288EE99E82913B1D935C4F00732BE19D575D60F29DA7D9F38B33436526E2B
TrID 54.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
23.2% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
7.8% (.EXE) Win64 Executable (generic) (10523/12/4)
4.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.3% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon d4c4c4d8ccd4f0c4 (63 x Formbook, 23 x AgentTesla, 8 x RemcosRAT)
Reporter TeamDreier
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
215
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/270829/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed replace.exe update.exe
Link:
https://www.filescan.io/uploads/62816dd5d06ea2f4a06e8893/reports/fecae88f-c5da-4ea6-86e3-7c80f691f164/overview
Result
Verdict:
MALICIOUS
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
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/1f6f99d6-d5ce-49f0-88b3-cc0853e78ece
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/994439
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
Icon mismatch, binary includes an icon from a different legit application in order to fool users
Initial sample is a PE file and has a suspicious name
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
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Self deletion via cmd delete
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 AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 626931 Sample: PO_39482.exe Startdate: 15/05/2022 Architecture: WINDOWS Score: 100 33 www.morfeamargot.xyz 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 10 other signatures 2->43 11 PO_39482.exe 3 2->11         started        signatures3 process4 file5 31 C:\Users\user\AppData\...\PO_39482.exe.log, ASCII 11->31 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_39482.exe 11->15         started        18 PO_39482.exe 11->18         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 20 explorer.exe 15->20 injected process9 dnsIp10 35 www.womensblockchaincouncil.com 20->35 45 System process connects to network (likely due to code injection or exploit) 20->45 24 chkdsk.exe 20->24         started        signatures11 process12 signatures13 47 Self deletion via cmd delete 24->47 49 Modifies the context of a thread in another process (thread injection) 24->49 51 Maps a DLL or memory area into another process 24->51 53 Tries to detect virtualization through RDTSC time measurements 24->53 27 cmd.exe 1 24->27         started        process14 process15 29 conhost.exe 27->29         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/dfc0ab6c112746d539f78d2db06430e4058584c6c54951c4420d1c98f32d11d7/
Threat name:
ByteCode-MSIL.Spyware.Negasteal
Create hunting rule
Status:
Malicious
First seen:
2022-05-10 02:22:37 UTC
File Type:
PE (.Net Exe)
Extracted files:
38
AV detection:
25 of 41 (60.98%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=37akw3are5dnkopxruw3azbq4qcylbggyvevdrccbuojr4znchlq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:mw06 rat spyware stealer suricata trojan
Link:
https://tria.ge/reports/220515-z4frlafeh5/
Behaviour
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
Suspicious use of SetThreadContext
Deletes itself
Formbook Payload
Formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
53721928004973ee33533fcc41ed1803606ec8fd60de1fdf91dcc34b425163c0
MD5 hash:
307412c715aa273e1bbded8a00885759
SHA1 hash:
d6a48e96043f80e978df663b1d71201ba7fcdaa6
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/32aef3c8-4170-4d90-a81b-db8ce54b5839/
Parent samples :
dfc0ab6c112746d539f78d2db06430e4058584c6c54951c4420d1c98f32d11d7
5f178e8ceb1e7a58d15110f4f376823069242ee2916a3d30782a14c1dda44cbe
ceaf0ea39f77d80e847f9cd525bc10747207eb16c5b778ac9cd0f883383adf16
8d2724f8e0a2404192bc667807968f1d7f2231c86757627e5ebc028f211eefd5
57741d0850f843f431770f336b440f60810cd5558f315de28a54782fab0b3801
6017c6dd8da77a97fcb9ab18cc38dbe1eb5ea008643bbc02dbca1fec004f20fd
SH256 hash:
dc6b2a3d0ac79da3cf21622a4aa77e343c149e6b8441d8b7b564a707eaffea82
MD5 hash:
068195453443d08aef19e53857e3ba74
SHA1 hash:
a518e8836b84862d27d2c09e2d1839270782bd14
Link:
https://www.unpac.me/results/32aef3c8-4170-4d90-a81b-db8ce54b5839/
SH256 hash:
417fbf6ee0491d2b11145ec9e3f64a7231de4d86c151d38c9b6b8eed0912b98e
MD5 hash:
e6417e4f40bf0980689a4b794a793ce2
SHA1 hash:
b6ed944ac449a6102fb5badf4eae34f37054565a
Link:
https://www.unpac.me/results/32aef3c8-4170-4d90-a81b-db8ce54b5839/
SH256 hash:
db0b4fa1571de93df4ff827175a132cbb8ecd0ff20a649bdb6c7071c441aa39e
MD5 hash:
c4e52638eb956c07f2966a4ad881a4bd
SHA1 hash:
9a5df9025428fd4c11b3714f3d6bc9d4e979cf8f
Link:
https://www.unpac.me/results/32aef3c8-4170-4d90-a81b-db8ce54b5839/
SH256 hash:
dfc0ab6c112746d539f78d2db06430e4058584c6c54951c4420d1c98f32d11d7
MD5 hash:
8cf9409e06e15fd23314055eb18be57d
SHA1 hash:
b4e63c9f31043f728100de6d24a412266ba27eda
Link:
https://www.unpac.me/results/32aef3c8-4170-4d90-a81b-db8ce54b5839/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.65
Link:
https://yomi.yoroi.company/submissions/dfc0ab6c112746d539f78d2db06430e4058584c6c54951c4420d1c98f32d11d7

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
Create hunting rule
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

Executable exe dfc0ab6c112746d539f78d2db06430e4058584c6c54951c4420d1c98f32d11d7

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/270829/

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