MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4c817012f18358469290ab2d534a7670dbd7769499cfafa327b5f7afca8c3552. 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: 17


Intelligence 17 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4c817012f18358469290ab2d534a7670dbd7769499cfafa327b5f7afca8c3552
SHA3-384 hash: 8262d36d24667ac980936b19ccb1d77e130d19017a6c6cb8796b74b092e7f67ef85ded56af3d11be34aae16fad52f71e
SHA1 hash: 8bc5e723bc75979404f55481990afc8014b648b0
MD5 hash: e0b5ba1741b777e172f3c51d48768572
humanhash: seventeen-nine-purple-venus
File name:file
Download: download sample
Signature Formbook
Create hunting rule
File size:281'254 bytes
First seen:2023-01-26 13:48:52 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 61259b55b8912888e90f516ca08dc514 (1'059 x Formbook, 741 x AgentTesla, 427 x GuLoader)
ssdeep 6144:PYa6mJ/EbkFtG0rrQ6veLQDSZPUtSx2Jiee+eSou3:PYwyYFtnrrQ6WXUAxce+ku3
TLSH T16B541245B1D4C07FE1A293319EBF872287B5B8126477AE1B23544D1E7CA87C1AB1FB02
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):PE icon
dhash icon b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla)
Reporter jstrosch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
189
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2023-01-26 13:50:02 UTC
Tags:
formbook xloader trojan stealer
Link:
https://app.any.run/tasks/f61e9229-7529-4ae0-9c46-55880f622483

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/357126/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a window
Creating a process from a recently created file
Searching for synchronization primitives
Launching cmd.exe command interpreter
Reading critical registry keys
Сreating synchronization primitives
Sending a custom TCP request
Setting browser functions hooks
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Forced shutdown of a system process
Unauthorized injection to a system process
Unauthorized injection to a browser process
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/63231/overview
Behaviour
MalwareBazaar
Verdict:
No Threat
Threat level:
  2/10
Confidence:
83%
Tags:
overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/63d284d31c9cbf7d62530cb2/reports/b9a499c4-6b22-46bf-82bc-07001f4b1734/overview
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
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/6c5a0d0d-75b9-49b0-958a-bac88cada51c
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1159575
Signature
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Detected unpacking (changes PE section rights)
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 dropped file
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Snort IDS alert for network traffic
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:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 792314 Sample: file.exe Startdate: 26/01/2023 Architecture: WINDOWS Score: 100 34 www.buatosh.top 2->34 36 vip.myshopline.shop 2->36 52 Snort IDS alert for network traffic 2->52 54 Malicious sample detected (through community Yara rule) 2->54 56 Multi AV Scanner detection for submitted file 2->56 58 4 other signatures 2->58 12 file.exe 19 2->12         started        signatures3 process4 file5 32 C:\Users\user\AppData\Local\...\rajaemva.exe, PE32 12->32 dropped 15 rajaemva.exe 12->15         started        process6 signatures7 68 Antivirus detection for dropped file 15->68 70 Multi AV Scanner detection for dropped file 15->70 72 Detected unpacking (changes PE section rights) 15->72 74 2 other signatures 15->74 18 rajaemva.exe 15->18         started        process8 signatures9 44 Modifies the context of a thread in another process (thread injection) 18->44 46 Maps a DLL or memory area into another process 18->46 48 Sample uses process hollowing technique 18->48 50 Queues an APC in another process (thread injection) 18->50 21 explorer.exe 1 6 18->21 injected process10 dnsIp11 38 www.hkifarm.com 38.163.6.122, 49722, 80 COGENT-174US United States 21->38 40 www.gotoken.online 3.64.163.50, 49726, 80 AMAZON-02US United States 21->40 42 2 other IPs or domains 21->42 60 System process connects to network (likely due to code injection or exploit) 21->60 25 mstsc.exe 21->25         started        signatures12 process13 signatures14 62 Modifies the context of a thread in another process (thread injection) 25->62 64 Maps a DLL or memory area into another process 25->64 66 Tries to detect virtualization through RDTSC time measurements 25->66 28 cmd.exe 1 25->28         started        process15 process16 30 conhost.exe 28->30         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4c817012f18358469290ab2d534a7670dbd7769499cfafa327b5f7afca8c3552/
Threat name:
Win32.Spyware.Noon
Create hunting rule
Status:
Malicious
First seen:
2023-01-26 13:49:10 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
14 of 26 (53.85%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=jsaxaexrqnmeneuqvmwvgstwodn5o5uuthh27izhwx327sumgvja._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:w12e rat spyware stealer trojan
Link:
https://tria.ge/reports/230126-q4n9asfc3x/
Behaviour
Gathers network information
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Loads dropped DLL
Executes dropped EXE
Formbook payload
Formbook
Unpacked files
SH256 hash:
1b8527467b81e5393ac11395dc6203af648fef54092cd79087030937578dd525
MD5 hash:
c3f70d248314d63eaab4ce45ebf1177b
SHA1 hash:
3113333f546e4afe569a10dbf8a0c1ae56ba646a
Detections:
FormBook
Create hunting rule
win_formbook_w0
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/85aeb207-747d-436a-b78e-435b91fb6052/
Parent samples :
4c817012f18358469290ab2d534a7670dbd7769499cfafa327b5f7afca8c3552
2e919dbaca46898116a0aa387553a54f4711aea584ea9931e6ea49d89e8986b8
SH256 hash:
96954f717e4286effa6164834c1d84ada3893a01e02cfb941935359d217733ec
MD5 hash:
db6440cb49420b859465e90af3d803df
SHA1 hash:
1f5bd9fe996a7f366fd849e1938958a0aafb672b
Link:
https://www.unpac.me/results/85aeb207-747d-436a-b78e-435b91fb6052/
SH256 hash:
4c817012f18358469290ab2d534a7670dbd7769499cfafa327b5f7afca8c3552
MD5 hash:
e0b5ba1741b777e172f3c51d48768572
SHA1 hash:
8bc5e723bc75979404f55481990afc8014b648b0
Link:
https://www.unpac.me/results/85aeb207-747d-436a-b78e-435b91fb6052/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/4c817012f183/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/4c817012f18358469290ab2d534a7670dbd7769499cfafa327b5f7afca8c3552

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:cobalt_strike_tmp01925d3f
Create hunting rule
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
Rule name:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
Rule name:shellcode
Create hunting rule
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.

Web download

Formbook

Executable exe 4c817012f18358469290ab2d534a7670dbd7769499cfafa327b5f7afca8c3552

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2518433/
Cape
Cape
https://www.capesandbox.com/analysis/357126/

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