MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 77a41bcc3afa2f5e690bb8ba00a7d099eaa5bfd9a19e5973a70a0139467c25aa. 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
| SHA256 hash: | 77a41bcc3afa2f5e690bb8ba00a7d099eaa5bfd9a19e5973a70a0139467c25aa |
|---|---|
| SHA3-384 hash: | 8af65a0ca82d6906383c275004548ee99ba88b7b3f884d417259301bae5d4314ef96e366dd615c521712974f4fe27406 |
| SHA1 hash: | 564c34cdb54d863de4040e7f6d1600af14a37830 |
| MD5 hash: | 3d3a5f065d3b0379c206aac4452f0b0c |
| humanhash: | quebec-missouri-eighteen-cardinal |
| File name: | PO-230803-S00.exe |
| Download: | download sample |
| Signature | Formbook |
| File size: | 256'396 bytes |
| First seen: | 2023-03-13 11:14:42 UTC |
| Last seen: | 2023-03-13 12:43:43 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 61259b55b8912888e90f516ca08dc514 (1'059 x Formbook, 741 x AgentTesla, 429 x GuLoader) |
| ssdeep | 6144:/Ya6Nvqq2nB44cs7pXEDN/UMiYcrgQA6Z+tqUu:/YfSq2HrX+fkgQAU+W |
| Threatray | 2'280 similar samples on MalwareBazaar |
| TLSH | T116441251A160C4BBD5731B321D79376AAFF1E1214A98C34633209E67BF31BC0572EBA6 |
| TrID | 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13) 15.9% (.EXE) Win64 Executable (generic) (10523/12/4) 9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 7.6% (.EXE) Win16 NE executable (generic) (5038/12/1) 6.8% (.EXE) Win32 Executable (generic) (4505/5/1) |
| File icon (PE): |  |
| dhash icon | b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla) |
| Reporter |  madjack_red |
| Tags: | exe FormBook |
Intelligence
File Origin
# of uploads :
2
# of downloads :
216
Origin country :
GBVendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
PO-230803-S00.exe
Verdict:
Malicious activity
Analysis date:
2023-03-13 11:18:05 UTC
Tags:
n/a
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Result
Verdict:
Malware
Maliciousness:
Behaviour
Searching for the window
Creating a file in the %temp% directory
Creating a window
Creating a process from a recently created file
Сreating synchronization primitives
Searching for synchronization primitives
Launching a process
DNS request
Sending an HTTP GET request
Reading critical registry keys
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Stealing user critical data
Unauthorized injection to a system process
Result
Malware family:
n/a
Score:
5/10
Tags:
n/a
Behaviour
MalwareBazaar
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
comodo formbook nemesis overlay packed remcos shell32.dll zusy
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Malware family:
Formbook
Verdict:
Malicious
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Antivirus detection for dropped file
Antivirus detection for URL or domain
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
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)
Multi AV Scanner detection for dropped file
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
System process connects to network (likely due to code injection or exploit)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Yara detected FormBook
Behaviour
Behavior Graph:
Threat name:
Win32.Trojan.Tnega
Status:
Malicious
First seen:
2023-03-07 23:56:21 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
30 of 39 (76.92%)
Threat level:
5/5
Detection(s):
Malicious file
Verdict:
malicious
Label(s):
formbook
Similar samples:
+ 2'270 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
7/10
Tags:
n/a
Behaviour
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Suspicious use of SetThreadContext
Executes dropped EXE
Loads dropped DLL
Unpacked files
SH256 hash:
719df9e2b8c5cfa3224343e5ed35e23631f90a8b2f8d3d792e6bd3a67da4f799
MD5 hash:
01b6d47080868c886c77a3cf78a83268
SHA1 hash:
3708f99e34fe14a5793be441c756d9825bff1182
Detections:
win_formbook_w0
win_formbook_auto
win_formbook_g0
SH256 hash:
6a5c1119b791b67e50ace96d6e686e99bca12f290cdb2b66d88ad8bb671d7352
MD5 hash:
ded9f915f01e78189fb9e9b6478e20e0
SHA1 hash:
8d5b011abb769e005463248d27361ad3726f1a2b
SH256 hash:
e64a807fce6e3482e379d0613ec6c6e3681aa815bdaeb301d9d33ab3134d386d
MD5 hash:
642c8098ada94f2ced7c53de84dc67b1
SHA1 hash:
8b50935fb78f17ef79a2888bc0e25197db381f7d
SH256 hash:
77a41bcc3afa2f5e690bb8ba00a7d099eaa5bfd9a19e5973a70a0139467c25aa
MD5 hash:
3d3a5f065d3b0379c206aac4452f0b0c
SHA1 hash:
564c34cdb54d863de4040e7f6d1600af14a37830
Malware family:
XLoader
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: | meth_get_eip |
|---|---|
| Author: | Willi Ballenthin |
| Rule name: | meth_stackstrings |
|---|---|
| Author: | Willi Ballenthin |
| Rule name: | shellcode |
|---|---|
| Author: | nex |
| Description: | Matched shellcode byte patterns |
| Rule name: | Windows_Trojan_Formbook |
|---|---|
| Author: | @malgamy12 |
| Rule name: | Windows_Trojan_Formbook_1112e116 |
|---|---|
| Author: | Elastic Security |
| Rule name: | win_formbook_auto |
|---|---|
| Author: | Felix Bilstein - yara-signator at cocacoding dot com |
| Description: | Detects win.formbook. |
| Rule name: | win_formbook_w0 |
|---|---|
| Author: | @malgamy12 |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
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