MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 51a539d3d4b1594552e1f6ac43182bce7141f56ad940e8bef0221f3074b22756. 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: 16
| SHA256 hash: | 51a539d3d4b1594552e1f6ac43182bce7141f56ad940e8bef0221f3074b22756 |
|---|---|
| SHA3-384 hash: | 44e4067ff076c8f3ec687a10211a8c683270b6f3b98f2d9df03ab5d5b8af6e65149976ff30e42f4672f09545c605444c |
| SHA1 hash: | 2a5052a602c4652e2a13e14f48cb1875c65212c5 |
| MD5 hash: | e9353f3724be78a9e04fd2b63da682a0 |
| humanhash: | island-grey-hydrogen-florida |
| File name: | IR-82405- F-431A.exe |
| Download: | download sample |
| Signature | Formbook |
| File size: | 423'276 bytes |
| First seen: | 2023-10-26 13:00:03 UTC |
| Last seen: | 2023-10-31 07:27:50 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | b76363e9cb88bf9390860da8e50999d2 (464 x Formbook, 184 x AgentTesla, 122 x SnakeKeylogger) |
| ssdeep | 12288:uzSxv/Yegz6q1neLOE2FlNYL2SJT3ohHwn09Jv1thx8V:uzS9YTeKPPmsc07Thx8V |
| Threatray | 51 similar samples on MalwareBazaar |
| TLSH | T1BC941295238891B7E2838B713AB1157C957AED6D11D0E70787A9BE2B7B32343874E703 |
| TrID | 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13) 15.9% (.EXE) Win64 Executable (generic) (10523/12/4) 9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 7.6% (.EXE) Win16 NE executable (generic) (5038/12/1) 6.8% (.EXE) Win32 Executable (generic) (4505/5/1) |
| File icon (PE): |  |
| dhash icon | fcd0d0d8d4c0c0d4 (1 x Formbook) |
| Reporter |  malwarelabnet |
| Tags: | exe FormBook |
Intelligence
File Origin
# of uploads :
3
# of downloads :
348
Origin country :
CAVendor Threat Intelligence
Malware family:
formbook
ID:
1
File name:
message__20231026144736_E888799BD215AA92_3b_eng_org_.eml
Verdict:
Malicious activity
Analysis date:
2023-10-26 14:17:35 UTC
Tags:
formbook xloader stealer spyware sinkhole
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
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
Сreating synchronization primitives
Sending a custom TCP request
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Gathering data
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
control installer lolbin overlay packed shell32
Verdict:
Malicious
Labled as:
Malware
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:
Conti
Verdict:
Malicious
Result
Threat name:
FormBook, NSISDropper
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Antivirus detection for dropped file
Antivirus detection for URL or domain
Detected unpacking (changes PE section rights)
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
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)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
System process connects to network (likely due to code injection or exploit)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Writes to foreign memory regions
Yara detected FormBook
Yara detected NSISDropper
Behaviour
Behavior Graph:
Score:
96%
Verdict:
Malware
File Type:
PE
Threat name:
Win32.Trojan.Swotter
Status:
Malicious
First seen:
2023-10-26 07:37:55 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
16 of 38 (42.11%)
Threat level:
5/5
Detection(s):
Malicious file
Verdict:
malicious
Label(s):
formbook
Similar samples:
+ 41 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
7/10
Tags:
n/a
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Unpacked files
SH256 hash:
47ad438cfeca5048a674116b3e43a74eefa80ff08127b18364978465b568d29e
MD5 hash:
a7534dc46e5791eda2d64610f3a6630f
SHA1 hash:
e7ebcd72e8cbedf44a7e7edb91169d82aaec53ad
Detections:
win_formbook_w0
win_formbook_g0
SH256 hash:
568a7da2bff42094514b3c8cda6ddbb35ee512c1555e6108bc4a8f1b0ca82f05
MD5 hash:
9c399b7c7da398a5912deba1b7712327
SHA1 hash:
8b914fe46df7335df48e5abf6cda0a668af17faf
SH256 hash:
03ab0711fe0e407509f9e95a1bbeb7763d25807b27db7764da9f7908e7daa4d3
MD5 hash:
8356a514fe622f8ad2b5caf8ef8a03de
SHA1 hash:
50170170fff96400cb2398cc166dcae1088a700f
SH256 hash:
51a539d3d4b1594552e1f6ac43182bce7141f56ad940e8bef0221f3074b22756
MD5 hash:
e9353f3724be78a9e04fd2b63da682a0
SHA1 hash:
2a5052a602c4652e2a13e14f48cb1875c65212c5
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Formbook
Score:
1.00
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: | DebuggerCheck__GlobalFlags |
|---|---|
| Reference: | https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara |
| Rule name: | DebuggerCheck__QueryInfo |
|---|---|
| Reference: | https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara |
| Rule name: | DebuggerHiding__Active |
|---|---|
| Reference: | https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara |
| Rule name: | DebuggerHiding__Thread |
|---|---|
| Reference: | https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara |
| Rule name: | maldoc_find_kernel32_base_method_1 |
|---|---|
| Author: | Didier Stevens (https://DidierStevens.com) |
| Rule name: | maldoc_getEIP_method_1 |
|---|---|
| Author: | Didier Stevens (https://DidierStevens.com) |
| Rule name: | MD5_Constants |
|---|---|
| Author: | phoul (@phoul) |
| Description: | Look for MD5 constants |
| Rule name: | meth_get_eip |
|---|---|
| Author: | Willi Ballenthin |
| Rule name: | meth_stackstrings |
|---|---|
| Author: | Willi Ballenthin |
| Rule name: | pe_no_import_table |
|---|---|
| Description: | Detect pe file that no import table |
| Rule name: | RIPEMD160_Constants |
|---|---|
| Author: | phoul (@phoul) |
| Description: | Look for RIPEMD-160 constants |
| Rule name: | SEH__vectored |
|---|---|
| Reference: | https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara |
| Rule name: | SHA1_Constants |
|---|---|
| Author: | phoul (@phoul) |
| Description: | Look for SHA1 constants |
| Rule name: | shellcode |
|---|---|
| Author: | nex |
| Description: | Matched shellcode byte patterns |
| Rule name: | Windows_Trojan_Formbook |
|---|---|
| Author: | @malgamy12 |
| Rule name: | Windows_Trojan_Formbook_1112e116 |
|---|---|
| Author: | Elastic Security |
| Rule name: | win_formbook_w0 |
|---|---|
| Author: | @malgamy12 |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
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