MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 a33a8a9c70d441ce1c244817950cffd5fd82a1e63a7fd0d988ae9a43b502f797. 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: | a33a8a9c70d441ce1c244817950cffd5fd82a1e63a7fd0d988ae9a43b502f797 |
|---|---|
| SHA3-384 hash: | cbf0a5d4be213087abda70e64f108ca2c2afde3e715196dbeb241201d5104d547de70d35382d647600603e90a37389d7 |
| SHA1 hash: | 8a6f4ce4f1ad020b96e31951d70a6b2fda16c01b |
| MD5 hash: | 4c4aa03e0524dce3dd4811c578a8eff3 |
| humanhash: | one-steak-lactose-cola |
| File name: | 4c4aa03e0524dce3dd4811c578a8eff3.exe |
| Download: | download sample |
| Signature | Formbook |
| File size: | 745'984 bytes |
| First seen: | 2022-11-14 13:07:38 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 | 12288:C+hJ5pMHmXFuKeE2pa3+cxsMhqnkIMCnyX5+SweSRX/fh/txJU2:dhSYNeta3+evgkcytSBltk2 |
| TLSH | T12BF4380570B7F13EED2F49FF87242E5FDAFC5509221CD28E492977E26880A76B86504B |
| TrID | 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 10.4% (.EXE) Win64 Executable (generic) (10523/12/4) 6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 4.4% (.EXE) Win32 Executable (generic) (4505/5/1) 2.0% (.EXE) OS/2 Executable (generic) (2029/13) |
| Reporter |  abuse_ch |
| Tags: | exe FormBook |
Intelligence
File Origin
# of uploads :
1
# of downloads :
203
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
4c4aa03e0524dce3dd4811c578a8eff3.exe
Verdict:
Suspicious activity
Analysis date:
2022-11-14 13:10:49 UTC
Tags:
n/a
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Detection(s):
Result
Verdict:
Malware
Maliciousness:
Behaviour
Searching for the window
Creating a window
Sending a custom TCP request
Verdict:
Suspicious
Threat level:
5/10
Confidence:
100%
Tags:
packed
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
Antivirus detection for URL or domain
C2 URLs / IPs found in 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)
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Trojan.Taskun
Status:
Malicious
First seen:
2022-11-14 08:26:17 UTC
File Type:
PE (.Net Exe)
Extracted files:
11
AV detection:
20 of 25 (80.00%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
formbook
Result
Malware family:
formbook
Score:
10/10
Tags:
family:formbook campaign:bt25 rat spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Formbook payload
Formbook
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
0c201f49e71c08016823372b101f7a727b81486e338f332a5e68656d255b605f
MD5 hash:
f21bcb610254c4eb322300c008641197
SHA1 hash:
025daea616934cb3cd772a132939bcf4d6bb20b1
Detections:
FormBook
win_formbook_auto
win_formbook_g0
SH256 hash:
ee12598bb8a56ce588520687d16ef0322e784b0b2f06edb83a86a0c4f6cb0a2e
MD5 hash:
c4879fa878300df3eccc09f226b1510d
SHA1 hash:
88f4c5664670827e3534531f251b5d84814f0f90
SH256 hash:
ce34e97039945cce99d90979d3b3452cb0d47d4a68995992e3ac9df065f3d894
MD5 hash:
07b3f3c8ce72cecf2aff3fe4b35548f6
SHA1 hash:
7d0c3ec5c74b971eb9b56f63e6f241954eb20353
SH256 hash:
cfc16a2dbb933b1b85807d48966e9301b9fc34f4c44e7357713ca88b54bf4ab4
MD5 hash:
aabd0bdc81026ade6c57383f21d5c227
SHA1 hash:
4b26936bb8c03be6d7963184215a5ab594ecb765
SH256 hash:
ab19f28c700d64814b0c55df868c30dfb94e0a1f9fb6f7bca05bac6eb78a4e52
MD5 hash:
1f2a6c02dcf9aa00a28a5039fb5b8ce0
SHA1 hash:
1ef480867d39b98368af7586a8e6ba38c0c3893a
SH256 hash:
a33a8a9c70d441ce1c244817950cffd5fd82a1e63a7fd0d988ae9a43b502f797
MD5 hash:
4c4aa03e0524dce3dd4811c578a8eff3
SHA1 hash:
8a6f4ce4f1ad020b96e31951d70a6b2fda16c01b
Malware family:
FormBook
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Formbook
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
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