MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 0c40251e1bc8bdd47fbd6b3d235ca27d95801b716734633f7e637ae113149b26. 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


Intelligence 16 IOCs YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 0c40251e1bc8bdd47fbd6b3d235ca27d95801b716734633f7e637ae113149b26
SHA3-384 hash: 7ba4452f8016ba3cd8456dcb5dd6dd5c5b2f8b7ab8bfdf4ec7dcaef99416b8dee0ae551f8f0bb684112cb39957e4065f
SHA1 hash: 440eecf97fd7f8e9dd53de0fd3cf36e61eafaa4e
MD5 hash: ab018042894c383144662d45093e5a0a
humanhash: sodium-don-kentucky-eighteen
File name:e-dekont.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:257'816 bytes
First seen:2022-08-25 11:08:33 UTC
Last seen:2022-08-31 19:08:18 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 6144:uAilDOCcy327YK43TFPagPyWKNp9P+fyshItz9:GlDMycL43JagPyWKT9P+fx2tz9
Threatray 43 similar samples on MalwareBazaar
TLSH T10444125723F20D92DB5D4BB54C0A00D4AAF0EA89B9D3862F20BD66245EF47F6371E81D
TrID 69.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.9% (.EXE) Win64 Executable (generic) (10523/12/4)
6.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.7% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.2% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon e4dcd8c4d4d4c4d4 (95 x AgentTesla, 51 x Formbook, 12 x RemcosRAT)
Reporter abuse_ch
Tags:exe FormBook geo TUR

Intelligence

File Origin
# of uploads :
2
# of downloads :
338
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
e-dekont.exe
Verdict:
Malicious activity
Analysis date:
2022-08-25 11:14:10 UTC
Tags:
formbook trojan stealer
Link:
https://app.any.run/tasks/f68856be-f2f4-42a4-9a83-6297f54d2660

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/301138/
Detection(s):
SecuriteInfo.com.Trojan.DownloaderNET.345.21489.6535.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
Creating a file
Сreating synchronization primitives
Launching cmd.exe command interpreter
Searching for synchronization primitives
Reading critical registry keys
Setting browser functions hooks
Unauthorized injection to a system process
Unauthorized injection to a browser process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated overlay packed
Link:
https://www.filescan.io/uploads/63075876393b1c8c4710fa77/reports/46bce5dc-a2bf-4e92-839c-53e6513e8552/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.
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/00da682b-5d36-42e1-a704-bb9f12d8675f
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1057674
Signature
.NET source code references suspicious native API functions
Allocates memory in foreign processes
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
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)
Sample uses process hollowing technique
Tries to detect virtualization through RDTSC time measurements
Uses netsh to modify the Windows network and firewall settings
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 690195 Sample: e-dekont.exe Startdate: 25/08/2022 Architecture: WINDOWS Score: 100 31 Malicious sample detected (through community Yara rule) 2->31 33 Antivirus detection for URL or domain 2->33 35 Multi AV Scanner detection for submitted file 2->35 37 5 other signatures 2->37 10 e-dekont.exe 1 2->10         started        process3 file4 27 C:\Users\user\AppData\...\e-dekont.exe.log, ASCII 10->27 dropped 45 Writes to foreign memory regions 10->45 47 Allocates memory in foreign processes 10->47 49 Injects a PE file into a foreign processes 10->49 51 Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent) 10->51 14 cvtres.exe 10->14         started        signatures5 process6 signatures7 53 Modifies the context of a thread in another process (thread injection) 14->53 55 Maps a DLL or memory area into another process 14->55 57 Sample uses process hollowing technique 14->57 59 2 other signatures 14->59 17 explorer.exe 14->17 injected process8 signatures9 29 Uses netsh to modify the Windows network and firewall settings 17->29 20 netsh.exe 17->20         started        process10 signatures11 39 Modifies the context of a thread in another process (thread injection) 20->39 41 Maps a DLL or memory area into another process 20->41 43 Tries to detect virtualization through RDTSC time measurements 20->43 23 cmd.exe 1 20->23         started        process12 process13 25 conhost.exe 23->25         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/0c40251e1bc8bdd47fbd6b3d235ca27d95801b716734633f7e637ae113149b26/
Threat name:
ByteCode-MSIL.Trojan.Leonem
Create hunting rule
Status:
Malicious
First seen:
2022-08-25 11:09:08 UTC
File Type:
PE (.Net Exe)
Extracted files:
6
AV detection:
22 of 26 (84.62%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=brackhq3zc65i755nm6sgxfcpwkyag3rm42ggp36mn5oceyutmta._file
Verdict:
malicious
Similar samples:
1dc7309f7dd394071a6b83e32be1cd98484f813b22790b0a7ec426488cfd82cb
Formbook
3044c2a280590ffccc6fd676451e8430f44233d063178f08a474aa431d1e39f3
Formbook
3d284e40d206579789e3e2fee1db9762c628f1381c4fd5722f98f0d272756587
Formbook
7fac26ff4f77be574f7c66cf0b671a4e4665b12e503b41959da80c82a85f38c1
Formbook
a7aaa3efb2f1d921fe7b46916a660bbd1fbf4d54deb3e81c9b05ee7e2362ef16
Formbook
b17806277d6aed75d13cd5cfb1512ade3d418384185c180a3d2d6685aaac751b
Formbook
b2eb87d2187c2db1b5ad4cd5b65099d47db2cc2ddbe891144b20cf7c6784bb90
Formbook
b5b1de5d440c2e8363c98beb552d0ddabe1561e5b13e4786da17c00c80149d25
Formbook
cd9790c56c1985027868b7b9fc65201f36ee52a7413e4edbd89274ad6445f679
Formbook
ef56c1816b203c94de799dfbc607f74fc7ef4c172322b09c6f2f10abecc3905f
Formbook
+ 33 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:s3s3 rat spyware stealer trojan
Link:
https://tria.ge/reports/220825-m849jadab8/
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 WriteProcessMemory
Suspicious use of SetThreadContext
Formbook payload
Formbook
Unpacked files
SH256 hash:
072f4f8ae3bf501da1075c9689b1e76d2f3def6d05686be3af0f8a90f965d784
MD5 hash:
9d3c6d818a558a5718f0bc65bb953efb
SHA1 hash:
0631e3047afd1443452de5d323f2910eb371b75f
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
FormBook
Create hunting rule
Link:
https://www.unpac.me/results/9ea4515b-aeb4-4d3f-92b3-794c0a9289d7/
Parent samples :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 hash:
ce5b673cfe0dee6c477e8a113c7f13ad558f17734c0889de8774649e709f5afd
MD5 hash:
96190236d62482e8c7fc81ee03c8eab4
SHA1 hash:
4d52a69c73d2972da29456ba44977a175fd4e06b
Link:
https://www.unpac.me/results/9ea4515b-aeb4-4d3f-92b3-794c0a9289d7/
SH256 hash:
0c40251e1bc8bdd47fbd6b3d235ca27d95801b716734633f7e637ae113149b26
MD5 hash:
ab018042894c383144662d45093e5a0a
SHA1 hash:
440eecf97fd7f8e9dd53de0fd3cf36e61eafaa4e
Link:
https://www.unpac.me/results/9ea4515b-aeb4-4d3f-92b3-794c0a9289d7/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/0c40251e1bc8/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Formbook
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/0c40251e1bc8bdd47fbd6b3d235ca27d95801b716734633f7e637ae113149b26

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:malware_Formbook_strings
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Formbook in memory
Reference:internal research
Rule name:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
Rule name:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
Rule name:pdb_YARAify
Create hunting rule
Author:@wowabiy314
Description:PDB
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:win_formbook_auto
Create hunting rule
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.

Malspam

Formbook

Executable exe 0c40251e1bc8bdd47fbd6b3d235ca27d95801b716734633f7e637ae113149b26

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/301138/

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