MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 10a4841b7d56afca3aad568e29fcd3c44f3a0d893aef62ee32471847be405797. 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: 13
| SHA256 hash: | 10a4841b7d56afca3aad568e29fcd3c44f3a0d893aef62ee32471847be405797 |
|---|---|
| SHA3-384 hash: | 414581e66515aa2afa209b7d4cf5d430a07f4fbc53c6ee96a6c2b4b6d3efc31ffa4a5daba3affb1d54f965d4d8f1e992 |
| SHA1 hash: | d8c46cc203e6d92bf607d2637d37937dc08466f3 |
| MD5 hash: | 4e42888ffbe2082ce98d4375eb9c3794 |
| humanhash: | ink-mississippi-oscar-berlin |
| File name: | customs docs.exe |
| Download: | download sample |
| Signature | Formbook |
| File size: | 340'310 bytes |
| First seen: | 2021-11-19 09:17:48 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 7fa974366048f9c551ef45714595665e (946 x Formbook, 398 x Loki, 261 x AgentTesla) |
| ssdeep | 6144:rGiBUI9lCpUtrT5bG7IgnlmspnbBCboTRuP2KrEiqNFzaBCuFnpI0hTY:N7lIaRbdgnlmseboT4P2dD9aBvFCqTY |
| Threatray | 11'382 similar samples on MalwareBazaar |
| TLSH | T19174239A35C1595BC31596B219B6B736F3FA42C90BA83D2BD7487FF22E121C748093D4 |
| 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 :
1
# of downloads :
166
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
customs docs.exe
Verdict:
Malicious activity
Analysis date:
2021-11-19 09:23:43 UTC
Tags:
installer trojan formbook stealer
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Gathering data
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a window
Creating a file in the %temp% directory
Creating a file
Unauthorized injection to a recently created process
Searching for synchronization primitives
Launching a process
Сreating synchronization primitives
Launching cmd.exe command interpreter
DNS request
Setting browser functions hooks
Unauthorized injection to a system process
Unauthorized injection to a browser process
Verdict:
Suspicious
Threat level:
5/10
Confidence:
60%
Tags:
overlay 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
C2 URLs / IPs found in malware configuration
Found malware configuration
Injects a PE file into a foreign processes
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 domain / URL
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Self deletion via cmd delete
Tries to detect virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
Detection:
formbook
Threat name:
Win32.Spyware.Noon
Status:
Malicious
First seen:
2021-11-19 09:18:06 UTC
AV detection:
8 of 44 (18.18%)
Threat level:
2/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
formbook
Similar samples:
+ 11'372 additional samples on MalwareBazaar
Result
Malware family:
formbook
Score:
10/10
Tags:
family:formbook campaign:dn7r rat spyware stealer trojan
Behaviour
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
Deletes itself
Loads dropped DLL
Blocklisted process makes network request
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.yourherogarden.net/dn7r/
Unpacked files
SH256 hash:
10a4841b7d56afca3aad568e29fcd3c44f3a0d893aef62ee32471847be405797
MD5 hash:
4e42888ffbe2082ce98d4375eb9c3794
SHA1 hash:
d8c46cc203e6d92bf607d2637d37937dc08466f3
Malware family:
FormBook
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.47
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: | Formbook |
|---|---|
| Author: | JPCERT/CC Incident Response Group |
| Description: | detect Formbook in memory |
| Reference: | internal research |
| Rule name: | INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFuture |
|---|---|
| Author: | ditekSHen |
| Description: | Detect executables with stomped PE compilation timestamp that is greater than local current time |
| 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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