MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 b844435235a5eb37ef8ddfbde5694104bb1d2faef4220739997f5bea28361c15. 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: | b844435235a5eb37ef8ddfbde5694104bb1d2faef4220739997f5bea28361c15 |
|---|---|
| SHA3-384 hash: | 6483744591b56390c70545e0b930d1832d42ddb7274ea2ca068ef69620a509937ebc3091288d37d5fba91417980d02f7 |
| SHA1 hash: | 37c8d6e6d68cfbe147660d16845055d4641032b7 |
| MD5 hash: | a546a3227508c546175ceabd87d77183 |
| humanhash: | october-sixteen-south-equal |
| File name: | a546a3227508c546175ceabd87d77183 |
| Download: | download sample |
| Signature | Formbook |
| File size: | 683'520 bytes |
| First seen: | 2022-06-01 14:01:37 UTC |
| Last seen: | 2022-06-01 14:43:06 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'747 x AgentTesla, 19'638 x Formbook, 12'244 x SnakeKeylogger) |
| ssdeep | 12288:ErXpUSlB61512RHHAakm00RAljCJyy1Yb524STOG0aUK/otiHva0xIzG:iXpUSlB61512RHgDOG0J31Yb524bGbU8 |
| TLSH | T128E4122866AD9652CCBF0FF69199A1545335C1163A07F72FDEC09AAA78D33D209037E3 |
| TrID | 64.2% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 11.5% (.SCR) Windows screen saver (13101/52/3) 9.2% (.EXE) Win64 Executable (generic) (10523/12/4) 5.7% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 3.9% (.EXE) Win32 Executable (generic) (4505/5/1) |
| File icon (PE): |  |
| dhash icon | 70f8ecccece87070 (15 x Formbook, 9 x AgentTesla, 8 x Loki) |
| Reporter |  zbetcheckin |
| Tags: | 32 exe FormBook |
Intelligence
File Origin
# of uploads :
2
# of downloads :
920
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
a546a3227508c546175ceabd87d77183
Verdict:
Suspicious activity
Analysis date:
2022-06-01 14:11:46 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
Creating a window
Сreating synchronization primitives
Unauthorized injection to a recently created process
Creating a file
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
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
Self deletion via cmd or bat file
Snort IDS alert for network traffic
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 ipconfig to lookup or modify the Windows network settings
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Detection:
formbook
Threat name:
Win32.Trojan.FormBook
Status:
Malicious
First seen:
2022-05-31 14:45:06 UTC
File Type:
PE (.Net Exe)
Extracted files:
12
AV detection:
19 of 40 (47.50%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
formbook
Result
Malware family:
formbook
Score:
10/10
Tags:
family:formbook campaign:h2s4 rat spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Formbook Payload
Formbook
Unpacked files
SH256 hash:
cb081d0e8cff95ed3fb865ebf310c413abac399810e4a6c6bf3f30a9a6b767d5
MD5 hash:
1e447320a7e5850a8f083c0046b8cd46
SHA1 hash:
4a68faad7542a442f15d063872cd62d0a9faae4a
Detections:
win_formbook_g0
win_formbook_auto
SH256 hash:
8d05271f440a5bc2390570851a7d5549ef991ccb30b6a3aef41eb9d12343c868
MD5 hash:
04b1a14467cf3cf43488c3330816d0f1
SHA1 hash:
f5cb3380007b1f21266bc3cb12c1bf92d24f9349
SH256 hash:
5100b293ef24dc3fd37db37fddd0a0dc0beca1aae3be0de39b783660f122c4ea
MD5 hash:
b74454b55d04ef2ccec2dd3bf9d0b598
SHA1 hash:
ac5843a527200cc5099d23c408e6cdcaa1478c15
SH256 hash:
879c29560b21be7d9b69ca27ca4756df86e080fa3e34cb191aad5cb1e5f05504
MD5 hash:
30b6a54a992eae921a2eb8c5ea130911
SHA1 hash:
1c83f0319bffe007077c6656418c9b7344d5affe
SH256 hash:
b844435235a5eb37ef8ddfbde5694104bb1d2faef4220739997f5bea28361c15
MD5 hash:
a546a3227508c546175ceabd87d77183
SHA1 hash:
37c8d6e6d68cfbe147660d16845055d4641032b7
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.65
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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