MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 398d4c9bea813210e56da3547fc784f0ffee56f99bb8f95216d05c7d06a14d63. 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: 16
| SHA256 hash: | 398d4c9bea813210e56da3547fc784f0ffee56f99bb8f95216d05c7d06a14d63 |
|---|---|
| SHA3-384 hash: | 1fe9396c43177a48b3fa36a3c361ba3b247a16a2b8799bca842d6ea32386db91f13fca6b9ad82e21efaa82016b133442 |
| SHA1 hash: | 575caf4c6c4d85ed76b60abddbc6dc335ff11177 |
| MD5 hash: | 61e99b74b2905cb627430ffcff42dda1 |
| humanhash: | colorado-princess-early-jupiter |
| File name: | 61e99b74b2905cb627430ffcff42dda1.exe |
| Download: | download sample |
| Signature | Formbook |
| File size: | 576'512 bytes |
| First seen: | 2023-11-01 06:51:42 UTC |
| Last seen: | 2023-11-01 08:16:14 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger) |
| ssdeep | 12288:m8G69yqLKWqieizNNf4OVMY0Wb0W3jUcTSK2OtzYHJ0/Bgw:66XW3PizHNMY0WtUcTCOIJ0/B |
| Threatray | 168 similar samples on MalwareBazaar |
| TLSH | T124C422407BBD4B64C77CA3B54BE35148A3B7721B1160EB2D2CC866CE50B7B8A4765B83 |
| 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) |
| File icon (PE): |  |
| dhash icon | c4c6a2202e223684 (12 x AgentTesla, 8 x Formbook, 2 x Loki) |
| Reporter |  abuse_ch |
| Tags: | exe FormBook |
Intelligence
File Origin
# of uploads :
2
# of downloads :
293
Origin country :
NLVendor Threat Intelligence
Detection:
Formbook
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a window
Searching for synchronization primitives
Launching the default Windows debugger (dwwin.exe)
Searching for the window
Verdict:
Likely Malicious
Threat level:
7.5/10
Confidence:
100%
Tags:
barys packed
Verdict:
Malicious
Labled as:
Trojan.Generic
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 potential unpacker
.NET source code contains very large array initializations
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
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
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Uses netstat to query active network connections and open ports
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Score:
100%
Verdict:
Malware
File Type:
PE
Detection:
formbook
Threat name:
ByteCode-MSIL.Trojan.FormBook
Status:
Malicious
First seen:
2023-10-30 13:59:09 UTC
File Type:
PE (.Net Exe)
Extracted files:
19
AV detection:
26 of 38 (68.42%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
formbook
Similar samples:
+ 158 additional samples on MalwareBazaar
Result
Malware family:
formbook
Score:
10/10
Tags:
family:formbook campaign:o5pf rat spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Formbook payload
Formbook
Unpacked files
SH256 hash:
764626825537bb776af81a162fe5b90c71fb8999d5e31a4bcb486f7b35d346fb
MD5 hash:
1ea222ce3f8474c2e4379cf6fd75a8ba
SHA1 hash:
d5e4ae31492e35d8fe50fdd8f6092450bb87019d
Detections:
FormBook
win_formbook_w0
win_formbook_auto
win_formbook_g0
SH256 hash:
a311c67e0bb00a74da93860302adb22926bedbf253cccd412609e8865aaa3577
MD5 hash:
4d9a190baac47411916c5ea0c62ebe91
SHA1 hash:
c54bb84403c45557daa8ddfc23ab94b507b332b9
SH256 hash:
758bfca2d1d77955d3d83e6b42678c3ab63debadbef76ac52e86b7f5a5855dd4
MD5 hash:
626682715389c6d615dc0d4fe2affd27
SHA1 hash:
b332f746b88c4acfd284d68b2223f6f6e413c472
SH256 hash:
a7ef759c38ab070f2c2cf3e71323609c5789cb709d6db2990a1c9ddcd24e3205
MD5 hash:
a315610d6d907f979250c06dfb865743
SHA1 hash:
08f3d6803a08eba2ce729caaa8cd618656929045
SH256 hash:
398d4c9bea813210e56da3547fc784f0ffee56f99bb8f95216d05c7d06a14d63
MD5 hash:
61e99b74b2905cb627430ffcff42dda1
SHA1 hash:
575caf4c6c4d85ed76b60abddbc6dc335ff11177
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: | NET |
|---|---|
| Author: | malware-lu |
| 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
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