MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3c35a04edd86465c4f752711854c9bc1a902395c647067b5e88c53895654906f. 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


Intelligence 11 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 3c35a04edd86465c4f752711854c9bc1a902395c647067b5e88c53895654906f
SHA3-384 hash: f94755ccd5d4ad9466ad0bdb1ca39f5f2b66c1d67250589611be5286161a8eab2a952aa9550d8ebdfa3b08f485a030d6
SHA1 hash: b2ccd7190c03583d41e4b9f74e0fcc9c3b72d20e
MD5 hash: 18a53e8426076b426f4ea1af0ebebc4f
humanhash: oranges-november-arizona-fifteen
File name:PIO298767890098.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:628'224 bytes
First seen:2022-10-18 17:59:26 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'757 x AgentTesla, 19'664 x Formbook, 12'254 x SnakeKeylogger)
ssdeep 12288:qLmHM28bxhvruH5XuwSl595n5HTFhiUxpBGefqwKZcFROidcea:hExhTcRSXn5HJ+eyFcFy
TLSH T1BFD4E0FD52408F57DE78A0B6C411124197F49AA75E22FB8F7E8331DA00D2F4D67AA90B
TrID 64.2% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.5% (.SCR) Windows screen saver (13101/52/3)
9.2% (.EXE) Win64 Executable (generic) (10523/12/4)
5.7% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.9% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon 70c4acace8e2ce72 (4 x Formbook, 3 x SnakeKeylogger, 2 x AgentTesla)
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
289
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/321467/
Detection(s):
SecuriteInfo.com.Trojan.Nanocore.498.2812.19451.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Searching for the window
Unauthorized injection to a recently created process
Creating a file
Searching for synchronization primitives
Launching a process
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/634ee9a34fc319a52d562088/reports/6948046e-834f-4be5-9590-65b3073bf22d/overview
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/ccb0d6a1-f2af-4bad-b839-cf182ddad11a
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1092954
Signature
C2 URLs / IPs found in 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
Queues an APC in another process (thread injection)
System process connects to network (likely due to code injection or exploit)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Uses netstat to query active network connections and open ports
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 725576 Sample: PIO298767890098.exe Startdate: 18/10/2022 Architecture: WINDOWS Score: 100 34 Malicious sample detected (through community Yara rule) 2->34 36 Multi AV Scanner detection for submitted file 2->36 38 Yara detected AntiVM3 2->38 40 5 other signatures 2->40 10 PIO298767890098.exe 3 2->10         started        process3 file4 30 C:\Users\user\...\PIO298767890098.exe.log, ASCII 10->30 dropped 52 Tries to detect virtualization through RDTSC time measurements 10->52 54 Injects a PE file into a foreign processes 10->54 14 PIO298767890098.exe 10->14         started        signatures5 process6 signatures7 56 Modifies the context of a thread in another process (thread injection) 14->56 58 Maps a DLL or memory area into another process 14->58 60 Queues an APC in another process (thread injection) 14->60 17 explorer.exe 14->17 injected process8 dnsIp9 32 www.decentralizedponzi.com 52.128.23.153, 49725, 80 DOSARRESTUS United States 17->32 42 System process connects to network (likely due to code injection or exploit) 17->42 44 Uses netstat to query active network connections and open ports 17->44 21 NETSTAT.EXE 17->21         started        24 autofmt.exe 17->24         started        signatures10 process11 signatures12 46 Modifies the context of a thread in another process (thread injection) 21->46 48 Maps a DLL or memory area into another process 21->48 50 Tries to detect virtualization through RDTSC time measurements 21->50 26 cmd.exe 1 21->26         started        process13 process14 28 conhost.exe 26->28         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/3c35a04edd86465c4f752711854c9bc1a902395c647067b5e88c53895654906f/
Threat name:
ByteCode-MSIL.Trojan.Leonem
Create hunting rule
Status:
Malicious
First seen:
2022-10-18 09:09:46 UTC
File Type:
PE (.Net Exe)
Extracted files:
22
AV detection:
23 of 26 (88.46%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=hq22atw5qzdfyt3ve4iykte3yguqeok4mrygpnpirrjysvsusbxq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Result
Malware family:
formbook
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Score:
  10/10
Tags:
family:formbook campaign:g47e rat spyware stealer trojan
Link:
https://tria.ge/reports/221018-wlawvaghar/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Deletes itself
Formbook payload
Formbook
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/61823bb6-4ad6-4c83-8df0-14c55028242c
Unpacked files
SH256 hash:
00ba906c2cbf39e9ce07fbd3c9a516919da5cf3aa6500e3896a1d8cfbe3d6ea4
MD5 hash:
febe6442602cc5df18074ff14f4eddb5
SHA1 hash:
9b9e5d212672cdbdeed7d36bf90b6f0116e70476
Detections:
FormBook
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/989bef95-03c2-4b88-bd40-3aeafd797fbc/
Parent samples :
3c35a04edd86465c4f752711854c9bc1a902395c647067b5e88c53895654906f
737b1dfa1329a868ec8f854a6bce10cafa4e0e04d16b2e73db1e9fb29e54d2fd
93c2315009ff086b25c1000011c5097117f466d04866bebd396989b59b35835e
76c7d2803113f28e42c8421072c002e0b4bd72ecfec7e2727768931cfd328fa3
51a2542d1b273f9d3d1c1b8817d77451c46bdb03e22c7b25c05f383b289305d0
SH256 hash:
4f80ddfe49b270f801ab44aa899153bbe2a0fb93abed0f9fc992f74ff6ab4fde
MD5 hash:
f4ba8570299eabf8fe2d02cc1dc0606a
SHA1 hash:
5d7add32313074f5a1e9b4ab379298dee8b6217e
Link:
https://www.unpac.me/results/989bef95-03c2-4b88-bd40-3aeafd797fbc/
SH256 hash:
59c6f83476f1a5ae55447e68d3bb55e2d9866cf5f1e6c95aaf6f51a07ec98bd9
MD5 hash:
c6114f9450d1e4c06d5632f82ac3a0fa
SHA1 hash:
2b981eded6e884c64b9d24ad47cfa28c9845b01e
Link:
https://www.unpac.me/results/989bef95-03c2-4b88-bd40-3aeafd797fbc/
SH256 hash:
3c35a04edd86465c4f752711854c9bc1a902395c647067b5e88c53895654906f
MD5 hash:
18a53e8426076b426f4ea1af0ebebc4f
SHA1 hash:
b2ccd7190c03583d41e4b9f74e0fcc9c3b72d20e
Link:
https://www.unpac.me/results/989bef95-03c2-4b88-bd40-3aeafd797fbc/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.55
Link:
https://yomi.yoroi.company/submissions/3c35a04edd86465c4f752711854c9bc1a902395c647067b5e88c53895654906f

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:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

Formbook

Executable exe 3c35a04edd86465c4f752711854c9bc1a902395c647067b5e88c53895654906f

(this sample)

  
Dropped by
formbook
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/321467/

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