MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 a313480d6be1ceb4aa7d10d7c2d7fb2366427ab841ab03383e4f1f52a03266e3. 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: 11
| SHA256 hash: | a313480d6be1ceb4aa7d10d7c2d7fb2366427ab841ab03383e4f1f52a03266e3 |
|---|---|
| SHA3-384 hash: | db89476a5be5be351e6dd98d329e87b8d3652f8c646253bc1d811d2600638b7cdce9e5b634df5a4016657ff62e7692d1 |
| SHA1 hash: | 333a12e4f2bade7431899a36921b7333d91e50aa |
| MD5 hash: | 257679d1ffeaa47dcea2491b13637e50 |
| humanhash: | angel-texas-earth-comet |
| File name: | 257679d1ffeaa47dcea2491b13637e50 |
| Download: | download sample |
| Signature | Formbook |
| File size: | 506'880 bytes |
| First seen: | 2021-10-28 08:07:42 UTC |
| Last seen: | 2021-10-28 10:39:04 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'600 x Formbook, 12'241 x SnakeKeylogger) |
| ssdeep | 12288:kclLrO1YJQvkqpN5K5hxJbUEi+pi+qA+tQD:w54hu+pUA+tQD |
| Threatray | 9'191 similar samples on MalwareBazaar |
| TLSH | T17AB45F1CB7814AFAEE5DADB248164A067B231F1BD250AA89138F36D7DFBF3911C15C84 |
| File icon (PE): |  |
| dhash icon | 70d2d0d2d8dcd4d4 (5 x Formbook, 1 x AZORult, 1 x Loki) |
| Reporter |  zbetcheckin |
| Tags: | 32 exe FormBook |
Intelligence
File Origin
# of uploads :
2
# of downloads :
114
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a window
Launching a process
Creating a file in the %temp% directory
Delayed writing of the file
Verdict:
Suspicious
Threat level:
5/10
Confidence:
67%
Tags:
anti-vm obfuscated 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.
Verdict:
Malicious
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
Binary or sample is protected by dotNetProtector
C2 URLs / IPs found in malware configuration
Found 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)
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
Self deletion via cmd delete
System process connects to network (likely due to code injection or exploit)
Tries to delay execution (extensive OutputDebugStringW loop)
Tries to detect virtualization through RDTSC time measurements
Uses ipconfig to lookup or modify the Windows network settings
Yara detected FormBook
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Backdoor.Blakken
Status:
Malicious
First seen:
2021-10-27 23:24:43 UTC
AV detection:
13 of 28 (46.43%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
formbook
Similar samples:
+ 9'181 additional samples on MalwareBazaar
Result
Malware family:
formbook
Score:
10/10
Tags:
family:formbook campaign:sl4w rat spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.trustedfurnituretransport.net/sl4w/
Unpacked files
SH256 hash:
0d6a4b417e9ef81a61a82294cb504e574e1508b4ca76c4cb2aab3342d936cb9b
MD5 hash:
5dc7ffa55cd591ff3fa6c1829ba57715
SHA1 hash:
b77cbb968826fa287b4f55677bcc9b52e88725cd
Detections:
win_formbook_g0
win_formbook_auto
SH256 hash:
a313480d6be1ceb4aa7d10d7c2d7fb2366427ab841ab03383e4f1f52a03266e3
MD5 hash:
257679d1ffeaa47dcea2491b13637e50
SHA1 hash:
333a12e4f2bade7431899a36921b7333d91e50aa
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: | INDICATOR_EXE_Packed_dotNetProtector |
|---|---|
| Author: | ditekSHen |
| Description: | Detects executables packed with dotNetProtector |
| Rule name: | INDICATOR_EXE_Packed_SmartAssembly |
|---|---|
| Author: | ditekSHen |
| Description: | Detects executables packed with SmartAssembly |
| Rule name: | pe_imphash |
|---|
| 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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