MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d2551632f3f195c68160fb0faf465cacb8ebab09348ae46d0f6b53be2db4ca97. 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: 15


Intelligence 15 IOCs YARA 2 File information Comments

SHA256 hash: d2551632f3f195c68160fb0faf465cacb8ebab09348ae46d0f6b53be2db4ca97
SHA3-384 hash: b67b721e74427dc42a9cea51cddc5edc7c647a1bb12a4bb4590d6d92bf332a91b2783798adeb76e027571f6ef4336526
SHA1 hash: 6a2f462665d027848bec7de06bf713e669ce4f21
MD5 hash: e43fb2a6bad29e9594653baa9e3afbc0
humanhash: west-aspen-single-fourteen
File name:Zeste Agency - New Purchase Order98765678.exe
Download: download sample
Signature FormBook
File size:1'459'712 bytes
First seen:2023-01-08 20:57:49 UTC
Last seen:2023-01-08 22:30:23 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 24576:w+6Em0jhxBoSvl/hmlnwIYQgsadS1Cn/M0MSvfSNztq250:zm0mMwdpYDdSM/dM0fSNz
TLSH T1E465C49D765072DFC867C972DAA81C64EAA074BB830FD203A06715EDDA4D99BCF140F2
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 Anonymous
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
2
# of downloads :
194
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
ID:
1
File name:
Zeste Agency - New Purchase Order98765678.exe
Verdict:
Malicious activity
Analysis date:
2023-01-08 21:00:00 UTC
Tags:
formbook xloader

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
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
Сreating synchronization primitives
Creating a file in the %AppData% subdirectories
Reading critical registry keys
Launching cmd.exe command interpreter
Creating a file in the %temp% directory
Searching for synchronization primitives
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
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.spyw.evad
Score:
100 / 100
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Detected FormBook malware
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: Steal Google chrome login data
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
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 780330 Sample: Zeste Agency - New Purchase... Startdate: 08/01/2023 Architecture: WINDOWS Score: 100 43 Malicious sample detected (through community Yara rule) 2->43 45 Antivirus detection for URL or domain 2->45 47 Multi AV Scanner detection for submitted file 2->47 49 9 other signatures 2->49 10 Zeste Agency - New Purchase Order98765678.exe 3 2->10         started        process3 file4 37 Zeste Agency - New...der98765678.exe.log, ASCII 10->37 dropped 61 Injects a PE file into a foreign processes 10->61 14 Zeste Agency - New Purchase Order98765678.exe 10->14         started        17 Zeste Agency - New Purchase Order98765678.exe 10->17         started        signatures5 process6 signatures7 65 Modifies the context of a thread in another process (thread injection) 14->65 67 Maps a DLL or memory area into another process 14->67 69 Sample uses process hollowing technique 14->69 71 Queues an APC in another process (thread injection) 14->71 19 explorer.exe 14->19 injected process8 dnsIp9 41 www.hdgby2.com 182.16.15.107, 80 NETSEC-HKNETSECHK Hong Kong 19->41 51 System process connects to network (likely due to code injection or exploit) 19->51 23 cmmon32.exe 18 19->23         started        signatures10 process11 file12 33 C:\Users\user\AppData\...336Mlogrv.ini, data 23->33 dropped 35 C:\Users\user\AppData\...356Mlogri.ini, data 23->35 dropped 53 Detected FormBook malware 23->53 55 Tries to steal Mail credentials (via file / registry access) 23->55 57 Tries to harvest and steal browser information (history, passwords, etc) 23->57 59 3 other signatures 23->59 27 cmd.exe 2 23->27         started        signatures13 process14 file15 39 C:\Users\user\AppData\Local\Temp\DB1, SQLite 27->39 dropped 63 Tries to harvest and steal browser information (history, passwords, etc) 27->63 31 conhost.exe 27->31         started        signatures16 process17
Threat name:
Win32.Trojan.Leonem
Status:
Malicious
First seen:
2023-01-02 05:44:10 UTC
File Type:
PE (.Net Exe)
Extracted files:
20
AV detection:
17 of 26 (65.38%)
Threat level:
  5/5
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:ned5 rat spyware stealer trojan
Behaviour
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Reads user/profile data of web browsers
Formbook payload
Formbook
Unpacked files
SH256 hash:
a327516357b9fa1a75753b3fbd0030e13f374be7cefcdf983d0b731f278b0c59
MD5 hash:
404efdeb9931733904da07f96fabeb72
SHA1 hash:
7ce363cd612f1d9a90b33ec196c4d0a49cdaee02
SH256 hash:
0759a0bd2187a1d1e4aa9562624c58ed871e2802ee48a926555aca0f8533e7df
MD5 hash:
9553096e9ebb11a1a85fba457ea50f10
SHA1 hash:
6966defa8f62e7bc21b0e78e8e346707683a1d6d
SH256 hash:
d2551632f3f195c68160fb0faf465cacb8ebab09348ae46d0f6b53be2db4ca97
MD5 hash:
e43fb2a6bad29e9594653baa9e3afbc0
SHA1 hash:
6a2f462665d027848bec7de06bf713e669ce4f21
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: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 d2551632f3f195c68160fb0faf465cacb8ebab09348ae46d0f6b53be2db4ca97

(this sample)

  
Dropped by
formbook
  
Delivery method
Distributed via e-mail attachment

Comments