MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 dbcbe4b91e3a84301ac4927687d5271b09dcd24c2f83a9176819ee16cd3347e3. 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: 13


Intelligence 13 IOCs YARA 4 File information Comments

SHA256 hash: dbcbe4b91e3a84301ac4927687d5271b09dcd24c2f83a9176819ee16cd3347e3
SHA3-384 hash: 2acd6975d8770b80013abd13ccc5c579fc676023f79369b40d02ba0fe2f9203518a10d84462af79e2d359322417dc9ff
SHA1 hash: 302297d80229b52a410af050fba09dcbd3444936
MD5 hash: cab7336242712f071d417d8424324afb
humanhash: texas-glucose-happy-stairway
File name:PO88976#.PDF.exe
Download: download sample
Signature Formbook
File size:1'335'296 bytes
First seen:2021-12-20 08:12:36 UTC
Last seen:2021-12-20 14:06:40 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 6144:MZDyhMy5rEjCmb1WyCFXPkCwKuPbKNSp0Gki4Xefd45cNVSltVxRxofDS0RRlGUp:Mimz0jQsYW6xtyg5eQU74ZxTM8lJp
Threatray 12'472 similar samples on MalwareBazaar
TLSH T10955230913D44CB3EB7F7B388CBA1E0606B0BF156B2BB54F9874A0CC8E65B5394B2516
Reporter lowmal3
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
3
# of downloads :
174
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
DNS request
Sending a custom TCP request
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
75%
Tags:
obfuscated
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.
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
C2 URLs / IPs found in malware configuration
Found malware configuration
Initial sample is a PE file and has a suspicious name
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
Sigma detected: Suspect Svchost Activity
Sigma detected: Suspicious Svchost Process
Tries to detect virtualization through RDTSC time measurements
Uses an obfuscated file name to hide its real file extension (double extension)
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 542566 Sample: PO88976#.PDF.exe Startdate: 20/12/2021 Architecture: WINDOWS Score: 100 32 Found malware configuration 2->32 34 Malicious sample detected (through community Yara rule) 2->34 36 Multi AV Scanner detection for submitted file 2->36 38 10 other signatures 2->38 10 PO88976#.PDF.exe 2 2->10         started        process3 file4 30 C:\Users\user\...\PO88976#.PDF.exe.log, ASCII 10->30 dropped 44 Writes to foreign memory regions 10->44 46 Injects a PE file into a foreign processes 10->46 14 aspnet_regbrowsers.exe 10->14         started        17 conhost.exe 10->17         started        signatures5 process6 signatures7 48 Modifies the context of a thread in another process (thread injection) 14->48 50 Maps a DLL or memory area into another process 14->50 52 Sample uses process hollowing technique 14->52 54 2 other signatures 14->54 19 explorer.exe 14->19 injected process8 process9 21 svchost.exe 19->21         started        24 autochk.exe 19->24         started        signatures10 40 Maps a DLL or memory area into another process 21->40 42 Tries to detect virtualization through RDTSC time measurements 21->42 26 cmd.exe 1 21->26         started        process11 process12 28 conhost.exe 26->28         started       
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2021-12-20 06:49:49 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
23 of 42 (54.76%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  1/10
Tags:
n/a
Behaviour
Suspicious use of AdjustPrivilegeToken
Unpacked files
SH256 hash:
57b3486a659f2b6e7d91e454a59116f2184468dda3c8b4f34213e6c98a0d2f80
MD5 hash:
dc2c61e522f0929d52da32c96ecc32a0
SHA1 hash:
c36603ae44d3cd06f20ceb18d29955cf70a78dc6
SH256 hash:
dbcbe4b91e3a84301ac4927687d5271b09dcd24c2f83a9176819ee16cd3347e3
MD5 hash:
cab7336242712f071d417d8424324afb
SHA1 hash:
302297d80229b52a410af050fba09dcbd3444936
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
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
Rule name:pe_imphash
Rule name:pe_imphash
Rule name:Skystars_Malware_Imphash
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 dbcbe4b91e3a84301ac4927687d5271b09dcd24c2f83a9176819ee16cd3347e3

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments