MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 457df636f0856d3ea978142fdcac35a4f2e31a863deb2660c2cdd8998f6bf2b9. 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: 12
| SHA256 hash: | 457df636f0856d3ea978142fdcac35a4f2e31a863deb2660c2cdd8998f6bf2b9 |
|---|---|
| SHA3-384 hash: | dfd4c2783f69d418428c78739a0cc94468cf5f7d90c91e50240433ccc48b240e8d3d82362dd252ed5674364d1788cb28 |
| SHA1 hash: | aa96d2972fb9d19ef77b1db916fd57cfd0dc03fd |
| MD5 hash: | 9808c8a2c63a32dc9743c03bddb09e39 |
| humanhash: | thirteen-asparagus-butter-triple |
| File name: | RF-03221127.exe |
| Download: | download sample |
| Signature | Formbook |
| File size: | 246'494 bytes |
| First seen: | 2022-03-22 11:44:58 UTC |
| Last seen: | 2022-03-22 13:52:35 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 7fa974366048f9c551ef45714595665e (946 x Formbook, 398 x Loki, 261 x AgentTesla) |
| ssdeep | 6144:rGiJjYNY9wXM7UcXHPXKJASPwElaptj8NCZxumx:FjYNYSARXHPzVqa3jotu |
| Threatray | 14'291 similar samples on MalwareBazaar |
| TLSH | T1CF34130F3DC09AB3E5D95A3170778E79E372C290865BCD176F843FB07AA75018516A3A |
| File icon (PE): |  |
| dhash icon | b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla) |
| Reporter |  lowmal3 |
| Tags: | exe FormBook |
Intelligence
File Origin
# of uploads :
3
# of downloads :
239
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Result
Verdict:
Malware
Maliciousness:
Behaviour
Searching for the window
Creating a window
Creating a file in the %temp% directory
Creating a process from a recently created file
Launching a process
Сreating synchronization primitives
Launching cmd.exe command interpreter
Searching for synchronization primitives
DNS request
Reading critical registry keys
Setting browser functions hooks
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Unauthorized injection to a system process
Unauthorized injection to a browser process
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
control.exe nemesis overlay packed shell32.dll
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
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)
Multi AV Scanner detection for domain / URL
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 (e.g. based on Emerging Threat rules)
Tries to detect virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
Threat name:
Win32.Trojan.NSISInject
Status:
Malicious
First seen:
2022-03-22 11:45:08 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
20 of 26 (76.92%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
formbook
Similar samples:
+ 14'281 additional samples on MalwareBazaar
Result
Malware family:
formbook
Score:
10/10
Tags:
family:formbook campaign:k13n rat spyware stealer trojan
Behaviour
Gathers network information
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Loads dropped DLL
Executes dropped EXE
Formbook Payload
Formbook
Unpacked files
SH256 hash:
7b16c04a43f74451956e0a68d53b6e2a50297e3ae9529043dee6676b31adb243
MD5 hash:
9aa210b36d4f72d80ab0dcb01c0f155f
SHA1 hash:
bde50ffbb1bef7296f3161729696543ede03cf3c
Detections:
win_formbook_g0
win_formbook_auto
SH256 hash:
b86ac9359640971886219282570c48219468583710e6b6b657b546d5fc605a2b
MD5 hash:
f9d5842e02d75738e0bbbef5c4d01183
SHA1 hash:
0ee704d0507458e8697baa319152d50eaa6f09b4
SH256 hash:
457df636f0856d3ea978142fdcac35a4f2e31a863deb2660c2cdd8998f6bf2b9
MD5 hash:
9808c8a2c63a32dc9743c03bddb09e39
SHA1 hash:
aa96d2972fb9d19ef77b1db916fd57cfd0dc03fd
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.18
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: | malware_Formbook_strings |
|---|---|
| Author: | JPCERT/CC Incident Response Group |
| Description: | detect Formbook in memory |
| Reference: | internal research |
| Rule name: | win_formbook_auto |
|---|---|
| Author: | Felix Bilstein - yara-signator at cocacoding dot com |
| Description: | Detects win.formbook. |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
Malspam
Delivery method
Distributed via e-mail attachment
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