MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 921628eeb649a7c9f45ccb4b95ccecba8a76e273a88bdf8478c7e63cef2fb10a. 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
| SHA256 hash: | 921628eeb649a7c9f45ccb4b95ccecba8a76e273a88bdf8478c7e63cef2fb10a |
|---|---|
| SHA3-384 hash: | 8831080186dbed7d100abec1b06a77cf489277f2c4d81befb06c0c3840f7571fd308b7be00300281612e148968e6e056 |
| SHA1 hash: | 2dd2157329e16150e476e058224f77bf0c2d1abc |
| MD5 hash: | 3247f8db646f5e524df32ea6a29e33d9 |
| humanhash: | stairway-coffee-beryllium-california |
| File name: | 3247f8db646f5e524df32ea6a29e33d9 |
| Download: | download sample |
| Signature | Formbook |
| File size: | 820'224 bytes |
| First seen: | 2022-02-15 21:06:25 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger) |
| ssdeep | 24576:GpPyANR1AiUEYDWt4T9FLrP1oV40/h9A:0PyAH1AiK84T9FtoP7 |
| TLSH | T16305011BB73BAA7AC47416B500DFE03113B15B8D2673DE3A7CBA32EC196236109B5539 |
| Reporter |  zbetcheckin |
| Tags: | 32 exe FormBook |
Intelligence
File Origin
# of uploads :
1
# of downloads :
285
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Detection(s):
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a window
Launching a process
Creating a file
Reading critical registry keys
Searching for synchronization primitives
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
control.exe formbook obfuscated packed replace.exe
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
Verdict:
Malicious
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
C2 URLs / IPs found in malware configuration
Found malware configuration
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
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
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
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Detection:
formbook
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2022-02-15 05:02:29 UTC
File Type:
PE (.Net Exe)
Extracted files:
8
AV detection:
23 of 28 (82.14%)
Threat level:
5/5
Verdict:
malicious
Label(s):
formbook
Result
Malware family:
formbook
Score:
10/10
Tags:
family:formbook campaign:vy44 rat spyware stealer trojan
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
Drops file in Windows directory
Suspicious use of SetThreadContext
Uses the VBS compiler for execution
Formbook Payload
Formbook
Unpacked files
SH256 hash:
d9e008784a1970a6e8905bfe986aff6937558801008bf4438e73b842288f7324
MD5 hash:
61c3ba87f7be1cddd89b3bb6477e2abb
SHA1 hash:
660c4483d8f619f7aa4303240128a63bf20a0488
SH256 hash:
352eaa20cf265f38ba7194fce6b2dc9c3cacc10c5b167472711595ba329670a4
MD5 hash:
f2a8092b74ddc6276bc780c9a38fa744
SHA1 hash:
b20e6ac4d1253462ce31d5ebda59a26bece3d73f
SH256 hash:
3ca74eb4ce4c2c5604dc298949ae47996d93063abfde0682d689205561d17d44
MD5 hash:
4e35b541f3d9162d0ac93d336df67779
SHA1 hash:
bb9e65761186806d4bada659e9d5db0c070501d4
SH256 hash:
7a9082e58b4c5f706686494af548c28c91b0d6b023c64ba850098dff87943591
MD5 hash:
ad7eca731b77353ea6fa2ceefb3d051d
SHA1 hash:
23027f153c665a249f7b2c57c034fa690999a447
Detections:
win_formbook_g0
win_formbook_auto
SH256 hash:
921628eeb649a7c9f45ccb4b95ccecba8a76e273a88bdf8478c7e63cef2fb10a
MD5 hash:
3247f8db646f5e524df32ea6a29e33d9
SHA1 hash:
2dd2157329e16150e476e058224f77bf0c2d1abc
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.65
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.
Web download
Delivery method
Distributed via web download
Comments
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