MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 61731a8887ca50f031dca2672ede53eb0f066a93487877cd0c79e4721528cd3c. 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
| SHA256 hash: | 61731a8887ca50f031dca2672ede53eb0f066a93487877cd0c79e4721528cd3c |
|---|---|
| SHA3-384 hash: | 44c5405c587af90c8668c95241d36e4524cc9d7950a983f50eede094ef1ce8d0343c29127f016df895a262912dfd2a84 |
| SHA1 hash: | f442384947ca9359a7b30f71eb6103bd36a9c59e |
| MD5 hash: | c41ec7c822cd34e297ceb9175a5789ad |
| humanhash: | july-hydrogen-lion-dakota |
| File name: | c41ec7c822cd34e297ceb9175a5789ad |
| Download: | download sample |
| Signature | Formbook |
| File size: | 572'928 bytes |
| First seen: | 2022-02-01 18:19:58 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'665 x AgentTesla, 19'478 x Formbook, 12'208 x SnakeKeylogger) |
| ssdeep | 12288:Z+aczUpWWVO7JMtHYvoTuMDchLOpAgVjwKU7yS1VtJgLur:Z+ZWVOVquwDclOqghwKeykZaur |
| Threatray | 13'034 similar samples on MalwareBazaar |
| TLSH | T17FC4BE74A2A74651F01F8BB464E8F96007B270E3FAC99D3A177535858FAAF542F4820F |
| Reporter |  zbetcheckin |
| Tags: | 32 exe FormBook |
Intelligence
File Origin
# of uploads :
1
# of downloads :
165
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Detection(s):
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a window
DNS request
Sending a custom TCP request
Сreating synchronization primitives
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a process from a recently created file
Creating a process with a hidden window
Creating a file in the %temp% directory
Launching a process
Creating a file
Launching cmd.exe command interpreter
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
7.5/10
Confidence:
100%
Tags:
obfuscated packed replace.exe
Result
Verdict:
UNKNOWN
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
Adds a directory exclusion to Windows Defender
Allocates memory in foreign processes
C2 URLs / IPs found in malware configuration
Found malware configuration
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 dropped file
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
Sigma detected: Bad Opsec Defaults Sacrificial Processes With Improper Arguments
Sigma detected: Powershell Defender Exclusion
Sigma detected: Suspicius Add Task From User AppData Temp
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
Uses schtasks.exe or at.exe to add and modify task schedules
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:
2022-02-01 18:20:13 UTC
File Type:
PE (.Net Exe)
Extracted files:
4
AV detection:
21 of 28 (75.00%)
Threat level:
5/5
Detection(s):
Malicious file
Verdict:
malicious
Label(s):
formbook
Similar samples:
+ 13'024 additional samples on MalwareBazaar
Result
Malware family:
formbook
Score:
10/10
Tags:
family:formbook campaign:cy22 rat spyware stealer suricata trojan
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Formbook Payload
Formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
0ef48af7f5468242958b60dd781960ab16e330b288bb2abff6ade48e9ec518c3
MD5 hash:
d2fcfbf0abccc2e5aed3978e2b6c6175
SHA1 hash:
8d3d88c89f15b64d86ec6dee202c997e0f96674c
Detections:
win_formbook_g0
win_formbook_auto
SH256 hash:
a3a35ed1b01faca97189d26ee3c3002f75b8929c6c37f4e8eeca5fa191381a35
MD5 hash:
2fe995b09b84ce777d08231bfaa30c32
SHA1 hash:
a21644a5bfb45fbad64435c7b204db355588a7bc
SH256 hash:
6f1b89bc3013177c101fe4448340c48c0dd08d19017a798bd11c2d0f76be1fbc
MD5 hash:
60a604887b3616e3ed86d81fab0a9ebb
SHA1 hash:
8db84f5f4c569c86c69aff464b2ffc4ce3dafa20
SH256 hash:
61731a8887ca50f031dca2672ede53eb0f066a93487877cd0c79e4721528cd3c
MD5 hash:
c41ec7c822cd34e297ceb9175a5789ad
SHA1 hash:
f442384947ca9359a7b30f71eb6103bd36a9c59e
Malware family:
FormBook
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
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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