MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 1681c41d589d2a6351a62ce6d9ed88413473484c01d4e7da438883fa469ef1e9. 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: | 1681c41d589d2a6351a62ce6d9ed88413473484c01d4e7da438883fa469ef1e9 |
|---|---|
| SHA3-384 hash: | b39390c32f927111c9d7faa1ca0d86c1a0eb3ea5e851576953649f19b06af149cc786cdcb38f59863c137781f3a0eee0 |
| SHA1 hash: | e488ae890a8c57f3d0191b279c5ed69342df37e2 |
| MD5 hash: | 6870cc470fc63a011f8ec105b5f009fa |
| humanhash: | seven-saturn-papa-king |
| File name: | 1681c41d589d2a6351a62ce6d9ed88413473484c01d4e7da438883fa469ef1e9 |
| Download: | download sample |
| Signature | Formbook |
| File size: | 254'464 bytes |
| First seen: | 2024-01-24 14:01:31 UTC |
| Last seen: | 2024-01-29 09:23:43 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| ssdeep | 6144:ycRfbiqoFYQaJ6HPPCOfAbqCR9vsoRU90XseXOFV3:yCzCYkPCOf4R9UoeSXsnV |
| Threatray | 534 similar samples on MalwareBazaar |
| TLSH | T17A44235A8D07C3BBCCD2B372D8632A4A4851ABAD766087D3D4984D5434BC0DBD63B4CE |
| Reporter |  adrian__luca |
| Tags: | exe FormBook |
Intelligence
File Origin
# of uploads :
2
# of downloads :
307
Origin country :
HUVendor Threat Intelligence
Detection:
n/a
Detection(s):
Result
Verdict:
Clean
Maliciousness:
Behaviour
Searching for the window
Searching for synchronization primitives
Launching the default Windows debugger (dwwin.exe)
Sending a custom TCP request
Verdict:
Suspicious
Threat level:
5/10
Confidence:
100%
Tags:
packed
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:
Formbook
Verdict:
Malicious
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.evad
Score:
92 / 100
Signature
Antivirus / Scanner detection for submitted sample
Deletes itself after installation
Found potential dummy code loops (likely to delay analysis)
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Yara detected FormBook
Behaviour
Behavior Graph:
Score:
100%
Verdict:
Malware
File Type:
PE
Threat name:
Win32.Trojan.FormBook
Status:
Malicious
First seen:
2024-01-24 14:02:05 UTC
File Type:
PE (Exe)
AV detection:
21 of 24 (87.50%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
formbook
Similar samples:
+ 524 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
3/10
Tags:
n/a
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Program crash
Unpacked files
SH256 hash:
02ed407ac3aa9245a82d1b7762c763e0715dc3a32c39c561772627b370e8d2b8
MD5 hash:
ac03da31609312a6b74f5176420c1544
SHA1 hash:
2a2291d6cb8e771962119d590ce6d79c7a66e4e2
SH256 hash:
1681c41d589d2a6351a62ce6d9ed88413473484c01d4e7da438883fa469ef1e9
MD5 hash:
6870cc470fc63a011f8ec105b5f009fa
SHA1 hash:
e488ae890a8c57f3d0191b279c5ed69342df37e2
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: | 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 |
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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