MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 dd072a22fcaf2b435d425335f108ddd6e5f6017293d81cf0835df77e77b60d87. 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: 12


Intelligence 12 IOCs YARA 23 File information Comments

SHA256 hash: dd072a22fcaf2b435d425335f108ddd6e5f6017293d81cf0835df77e77b60d87
SHA3-384 hash: 7b6dd2769d52e8de6671ee79dea7821417f250acdc50b3f8d36893216d4e35d180dc9f77272bc1a1667be93a7ebed562
SHA1 hash: d84b8e634ae4e69bd9de946c8df4f60b0112463a
MD5 hash: 7d399eec5f6ce2a9268522ef47581b09
humanhash: utah-minnesota-sink-burger
File name:MRR SURCHARGE.PDF.exe
Download: download sample
Signature Formbook
File size:631'808 bytes
First seen:2023-10-26 13:05:13 UTC
Last seen:2023-10-26 14:02:31 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 12288:NGC1zjzNX9FasBd+hEEpRTQxCIfQGSo/f8H5zeYvfe:g89Fasv0EEc1fzSkkZz
Threatray 164 similar samples on MalwareBazaar
TLSH T188D4126422BC6722F2FA57FD68F131805B76B7267976D28C1DC818EB0623B41CB60B57
TrID 63.0% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.2% (.SCR) Windows screen saver (13097/50/3)
9.0% (.EXE) Win64 Executable (generic) (10523/12/4)
5.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.8% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter malwarelabnet
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
2
# of downloads :
352
Origin country :
CA CA
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Сreating synchronization primitives
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
greyware masquerade packed
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
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
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Uses an obfuscated file name to hide its real file extension (double extension)
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1332686 Sample: MRR_SURCHARGE.PDF.exe Startdate: 26/10/2023 Architecture: WINDOWS Score: 100 28 Malicious sample detected (through community Yara rule) 2->28 30 Multi AV Scanner detection for submitted file 2->30 32 Yara detected FormBook 2->32 34 6 other signatures 2->34 9 MRR_SURCHARGE.PDF.exe 3 2->9         started        process3 signatures4 38 Injects a PE file into a foreign processes 9->38 12 MRR_SURCHARGE.PDF.exe 9->12         started        15 MRR_SURCHARGE.PDF.exe 9->15         started        17 MRR_SURCHARGE.PDF.exe 9->17         started        process5 signatures6 40 Maps a DLL or memory area into another process 12->40 42 Queues an APC in another process (thread injection) 12->42 19 UYNYvtAyngST.exe 12->19 injected process7 process8 21 chkdsk.exe 19->21         started        signatures9 36 Maps a DLL or memory area into another process 21->36 24 explorer.exe 3 1 21->24 injected 26 UYNYvtAyngST.exe 21->26 injected process10
Threat name:
ByteCode-MSIL.Trojan.FormBook
Status:
Malicious
First seen:
2023-10-26 04:53:47 UTC
File Type:
PE (.Net Exe)
Extracted files:
12
AV detection:
13 of 36 (36.11%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  7/10
Tags:
n/a
Behaviour
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Checks computer location settings
Loads dropped DLL
Unpacked files
SH256 hash:
ec145960c741cd0b91076a5883cb9e983b709eecdf6ecdc2fdb6453ee5836a45
MD5 hash:
d131a60d6d098243a712afca598400cc
SHA1 hash:
f75282ed1f1fb921dbd91b1fe959a04f25041dad
SH256 hash:
5aab96f450bb094e05d06db714ba94337a4ea97c9f0337420f3fc68380062f85
MD5 hash:
37e4e55c600a08ea5209c89618df0e59
SHA1 hash:
45c51a16eb4024b20feb96e5027d8c9d8e22331e
SH256 hash:
79d41d1f0a710d8a2f97bad8dc8efe9cae7b148a94cfd77efc22f55098a2ec63
MD5 hash:
12d0e9361543ff2fcd71b48881076435
SHA1 hash:
7162ddeb7d270d66e115d9532e92648371e1bcf8
SH256 hash:
913ccc0587c7caf7373b4f4ea101b0ca0d2a6f6f0158eda59ecfb732dfadc661
MD5 hash:
6599e925e7e71ee6a886140c1ac8731b
SHA1 hash:
4f1263f12ca634a52bc267677c0d67363f15fa0c
SH256 hash:
afe1bf2cfbd09026f0f269e035de8c74a3066190418a052626deeeba9275014c
MD5 hash:
23296fded1ba92f049f5b2f6bc5ac991
SHA1 hash:
1bd901d9330786b6a87219b7aec2d1ac3328bc1b
SH256 hash:
dd072a22fcaf2b435d425335f108ddd6e5f6017293d81cf0835df77e77b60d87
MD5 hash:
7d399eec5f6ce2a9268522ef47581b09
SHA1 hash:
d84b8e634ae4e69bd9de946c8df4f60b0112463a
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:AgentTesla_DIFF_Common_Strings_01
Author:schmidtsz
Description:Identify partial Agent Tesla strings
Rule name:DebuggerCheck__GlobalFlags
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__QueryInfo
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Active
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Thread
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:maldoc_find_kernel32_base_method_1
Author:Didier Stevens (https://DidierStevens.com)
Rule name:maldoc_getEIP_method_1
Author:Didier Stevens (https://DidierStevens.com)
Rule name:MD5_Constants
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:meth_get_eip
Author:Willi Ballenthin
Rule name:NET
Author:malware-lu
Rule name:pe_imphash
Rule name:pe_no_import_table
Description:Detect pe file that no import table
Rule name:RIPEMD160_Constants
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SEH__vectored
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:SHA1_Constants
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:shellcode
Author:nex
Description:Matched shellcode byte patterns
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.

Comments