MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 3fde800099900011f3f8cdda19331944e52ad1c36e430bbc661cd2433ac12c51. 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: | 3fde800099900011f3f8cdda19331944e52ad1c36e430bbc661cd2433ac12c51 |
|---|---|
| SHA3-384 hash: | b94e07387c3db1bb79470c8812e4ea50810898f6120a84b87066b229b91d4e3948276271040398fe468b7f8c37fc608d |
| SHA1 hash: | 58db843047d510637039caafff573b1908bd0cd3 |
| MD5 hash: | 297da67da164905878c696be732c835f |
| humanhash: | lima-johnny-five-july |
| File name: | Bank Slip and our New P.O copy.pdf.exe |
| Download: | download sample |
| Signature | Formbook |
| File size: | 472'576 bytes |
| First seen: | 2021-06-18 21:04:58 UTC |
| Last seen: | 2021-06-18 21:42:09 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger) |
| ssdeep | 12288:nAhcWUDdy8wuo1nI3LiqC82TyXG9ADs4Pb:nAhcWUDdXwuleqCrO2x4Pb |
| Threatray | 5'837 similar samples on MalwareBazaar |
| TLSH | 56A4120133FD4B32E8BC4BFAA561A19127B1A11B9155EB0E5EC631D64C67F884B23F27 |
| Reporter |  James_inthe_box |
| Tags: | exe FormBook |
Intelligence
File Origin
# of uploads :
2
# of downloads :
184
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Bank Slip and our New P.O copy.pdf.exe
Verdict:
Malicious activity
Analysis date:
2021-06-18 21:10:23 UTC
Tags:
trojan formbook stealer
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
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
C2 URLs / IPs found in malware configuration
Found malware configuration
Initial sample is a PE file and has a suspicious name
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
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Suspicious Double Extension
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
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Detection:
formbook
Threat name:
ByteCode-MSIL.Spyware.Noon
Status:
Malicious
First seen:
2021-06-18 01:19:52 UTC
File Type:
PE (.Net Exe)
Extracted files:
20
AV detection:
19 of 29 (65.52%)
Threat level:
2/5
Detection(s):
Malicious file
Verdict:
malicious
Label(s):
formbook
Similar samples:
+ 5'827 additional samples on MalwareBazaar
Result
Malware family:
formbook
Score:
10/10
Tags:
family:formbook rat spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Deletes itself
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.activeco.xyz/kb8f/
Unpacked files
SH256 hash:
e02310982eba4831ac320d43a05821a55d214bf98d8f24a7fd7a06bc16fd80b1
MD5 hash:
ced83e9c837c0db1a56a9f598d0d13ed
SHA1 hash:
2ddf098504d771993f5b50b142b071f0e57d103d
Detections:
win_formbook_g0
win_formbook_auto
SH256 hash:
5bede9eedf6ae6df5a9d587c116c9583b31474c159c2b53486b000093cb3fde6
MD5 hash:
072eeac61b35d3f09edee4ff4f80f52d
SHA1 hash:
696fd9905a47e526470c2e234fef32f1ec1b74ad
SH256 hash:
8540eded8ab1f5dbc1cc3ab939de6235093aadfe142ca8f8607dfa309502e50d
MD5 hash:
c553ef04f889987e36f0e45af2885ec6
SHA1 hash:
385067cd1bfe22a7970b5bdad0599aa27b9a3b44
SH256 hash:
3fde800099900011f3f8cdda19331944e52ad1c36e430bbc661cd2433ac12c51
MD5 hash:
297da67da164905878c696be732c835f
SHA1 hash:
58db843047d510637039caafff573b1908bd0cd3
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.55
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_InTheFu |
|---|---|
| Author: | ditekSHen |
| Description: | Detect executables with stomped PE compilation timestamp that is greater than local current time |
| Rule name: | pe_imphash |
|---|
| Rule name: | Skystars_Malware_Imphash |
|---|---|
| Author: | Skystars LightDefender |
| Description: | imphash |
| Rule name: | win_formbook_auto |
|---|---|
| Author: | Felix Bilstein - yara-signator at cocacoding dot com |
| Description: | autogenerated rule brought to you by yara-signator |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
Delivery method
Other
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