MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 3bc25439a27fa2e9385f42bfc9b9a6caa56dc076ccc07fd2aa4684c0292c9622. 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: | 3bc25439a27fa2e9385f42bfc9b9a6caa56dc076ccc07fd2aa4684c0292c9622 |
|---|---|
| SHA3-384 hash: | 8c8a248fc6c517ddd1ada10b161d4e7336ebea24b931d869f7b3bdd5fe68e18b3c07ab938794fdd9a39c324e8d261c1d |
| SHA1 hash: | 74342dc0d77895524182b58395fc17075cb6ebd7 |
| MD5 hash: | 96b16c7c68ed531cbb182605a3d5ae2a |
| humanhash: | alanine-massachusetts-three-bluebird |
| File name: | 96b16c7c68ed531cbb182605a3d5ae2a |
| Download: | download sample |
| Signature | Formbook |
| File size: | 295'401 bytes |
| First seen: | 2021-11-29 15:25:30 UTC |
| Last seen: | 2021-11-29 16:30:52 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 7fa974366048f9c551ef45714595665e (946 x Formbook, 398 x Loki, 261 x AgentTesla) |
| ssdeep | 6144:rGiYDT64ZFV22no0UV05ibY6jgw9GUPO+deMGNF:ctF02nFUK5ibcCG0O+deMGNF |
| Threatray | 11'739 similar samples on MalwareBazaar |
| TLSH | T16954128A9481046FD2934A7014FAD3EAF3F7C69C44055F47BB4AAF63E477261DC086EA |
| File icon (PE): |  |
| dhash icon | b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla) |
| Reporter |  zbetcheckin |
| Tags: | 32 exe FormBook |
Intelligence
File Origin
# of uploads :
2
# of downloads :
139
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
RE_NOWE_ZAMOWIENIE.eml
Verdict:
Malicious activity
Analysis date:
2021-11-29 07:40:55 UTC
Tags:
exploit CVE-2017-11882 loader trojan formbook stealer
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
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
DNS request
Sending a custom TCP request
Result
Malware family:
n/a
Score:
0/10
Tags:
n/a
Verdict:
Suspicious
Threat level:
5/10
Confidence:
75%
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.
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 submitted file
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 detect virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
Detection:
formbook
Threat name:
Win32.Trojan.FormBook
Status:
Malicious
First seen:
2021-11-29 08:14:10 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
17 of 28 (60.71%)
Threat level:
5/5
Verdict:
malicious
Label(s):
formbook
Similar samples:
+ 11'729 additional samples on MalwareBazaar
Result
Malware family:
formbook
Score:
10/10
Tags:
family:formbook campaign:dy26 rat spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Loads dropped DLL
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.yukotopia.com/dy26/
Unpacked files
SH256 hash:
3bc25439a27fa2e9385f42bfc9b9a6caa56dc076ccc07fd2aa4684c0292c9622
MD5 hash:
96b16c7c68ed531cbb182605a3d5ae2a
SHA1 hash:
74342dc0d77895524182b58395fc17075cb6ebd7
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.
Web download
Delivery method
Distributed via web download
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