MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 4a1e3a03026f57a6364b645bc8e05e1d7cc9d0fe8fe7ddbf6eb57ee4288fbb57. 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: 17
| SHA256 hash: | 4a1e3a03026f57a6364b645bc8e05e1d7cc9d0fe8fe7ddbf6eb57ee4288fbb57 |
|---|---|
| SHA3-384 hash: | 9a3c9eafbefaf65a1e1fbea2628626b277de49e379bf622e6513714dbd93836b338eb605d18ffabe21942fbda1d8d46f |
| SHA1 hash: | 361749afe3423b3904f6ffb2432baa8ce7288642 |
| MD5 hash: | cfff2b043a6c98616a197315a813ca6d |
| humanhash: | washington-cold-monkey-artist |
| File name: | cfff2b043a6c98616a197315a813ca6d |
| Download: | download sample |
| Signature | Formbook |
| File size: | 279'270 bytes |
| First seen: | 2023-08-17 19:08:40 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 61259b55b8912888e90f516ca08dc514 (1'059 x Formbook, 741 x AgentTesla, 427 x GuLoader) |
| ssdeep | 6144:/Ya6UQW9kY0V1PypWp08lOSYzvseWjdGuOqaNSKOX:/YaQW9kYBpWm8lOSYjsBdGuUOX |
| Threatray | 3'820 similar samples on MalwareBazaar |
| TLSH | T13F54128123F1E067FAA262300E75AED78BFB7E621A34A38F131855DDBD46792D11C361 |
| 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 |  zbetcheckin |
| Tags: | 32 exe FormBook |
Intelligence
File Origin
# of uploads :
1
# of downloads :
284
Origin country :
FRVendor Threat Intelligence
Malware family:
formbook
ID:
1
File name:
Order 20230816.xls
Verdict:
Malicious activity
Analysis date:
2023-08-17 18:13:18 UTC
Tags:
opendir exploit cve-2017-11882 loader formbook xloader stealer spyware
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Detection(s):
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a file in the %temp% directory
Creating a window
Creating a file
Unauthorized injection to a recently created process
Restart of the analyzed sample
Result
Malware family:
n/a
Score:
5/10
Tags:
n/a
Behaviour
MalwareBazaar
Gathering data
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
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, NSISDropper
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Detected unpacking (changes PE section rights)
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
Found malware configuration
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 dropped file
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Tries to detect virtualization through RDTSC time measurements
Yara detected FormBook
Yara detected NSISDropper
Behaviour
Behavior Graph:
Detection:
formbook
Threat name:
Win32.Trojan.Nemesis
Status:
Malicious
First seen:
2023-08-17 18:58:47 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
19 of 38 (50.00%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
formbook
Similar samples:
+ 3'810 additional samples on MalwareBazaar
Result
Malware family:
formbook
Score:
10/10
Tags:
family:formbook campaign:sy22 rat spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Loads dropped DLL
Formbook payload
Formbook
Unpacked files
SH256 hash:
c3bf741b75a7dd95c1df0f0ae28aadb08fd536c43ad3c06b7db041e2a487de21
MD5 hash:
23f8b8d638849f6a4bbc8cf796842ffa
SHA1 hash:
c829b35bc1d1e34aa021124fec85fb7628d860f6
SH256 hash:
4a1e3a03026f57a6364b645bc8e05e1d7cc9d0fe8fe7ddbf6eb57ee4288fbb57
MD5 hash:
cfff2b043a6c98616a197315a813ca6d
SHA1 hash:
361749afe3423b3904f6ffb2432baa8ce7288642
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: | shellcode |
|---|---|
| Author: | nex |
| Description: | Matched shellcode byte patterns |
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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