MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a9dc361f5933942780cffbc0143cbddce7533683de60dd9eb338b67d8da8fbc0. 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: 9


Intelligence 9 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a9dc361f5933942780cffbc0143cbddce7533683de60dd9eb338b67d8da8fbc0
SHA3-384 hash: e663b2d69652180bb225384f8ce27333e9df4ff95233fb3c83adc93009735a49dba2d3026002a6b775cc9f8c9f4aac7d
SHA1 hash: 05fcc27faab707cff8a46b7dca8db9ec46259eaa
MD5 hash: 5243a480986483cc95232fb55e0b88ff
humanhash: maryland-eleven-yankee-hot
File name:SecuriteInfo.com.Trojan-Downloader.MSIL.Agent.16339.13667
Download: download sample
Signature Formbook
Create hunting rule
File size:7'168 bytes
First seen:2022-12-16 03:28:12 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'468 x Formbook, 12'206 x SnakeKeylogger)
ssdeep 96:fjPp7pKvCvhFkNU+U8rbG9AvLF5rOmKJ8LVzskl+VPTxzNt:rFvh6/W9AvLymKMz1wdTT
TLSH T1BDE1E81157898733FD7A8B769CF3A3811338E7516A57CB9E3CC8520B8D06B9859A2F20
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Reporter SecuriteInfoCom
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
170
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
SecuriteInfo.com.Trojan-Downloader.MSIL.Agent.16339.13667
Verdict:
Malicious activity
Analysis date:
2022-12-16 03:30:41 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/c062247c-3b88-4cf0-9d3a-304d870524b5

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/346847/
Detection(s):
SecuriteInfo.com.Trojan-Downloader.MSIL.Agent.16339.13667.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
DNS request
Sending a custom TCP request
Sending an HTTP GET request
Launching a process
Creating a process with a hidden window
Creating a file in the %AppData% subdirectories
Unauthorized injection to a recently created process
Creating a file
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Verdict:
No Threat
Threat level:
  2/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/639be5ff45019ccb94bb384c/reports/1b613e7a-36a6-4578-aa2c-02807786df1a/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:
Suspicious
Link:
https://analyze.intezer.com/analyses/da742dcb-2659-49a0-9763-36d8a7fdd022
Result
Threat name:
Unknown
Detection:
malicious
Classification:
evad
Score:
84 / 100
Link:
https://www.joesandbox.com/analysis/1135459
Signature
.NET source code contains potential unpacker
Creates multiple autostart registry keys
Encrypted powershell cmdline option found
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Sample uses process hollowing technique
Uses netsh to modify the Windows network and firewall settings
Yara detected Costura Assembly Loader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 768189 Sample: SecuriteInfo.com.Trojan-Dow... Startdate: 16/12/2022 Architecture: WINDOWS Score: 84 46 eduarddr.ca 2->46 56 Malicious sample detected (through community Yara rule) 2->56 58 .NET source code contains potential unpacker 2->58 60 Machine Learning detection for sample 2->60 62 Yara detected Costura Assembly Loader 2->62 8 Narrfa.exe 14 4 2->8         started        12 SecuriteInfo.com.Trojan-Downloader.MSIL.Agent.16339.13667.exe 16 7 2->12         started        15 Narrfa.exe 3 2->15         started        signatures3 process4 dnsIp5 64 Machine Learning detection for dropped file 8->64 66 Encrypted powershell cmdline option found 8->66 68 Uses netsh to modify the Windows network and firewall settings 8->68 17 Narrfa.exe 8->17         started        20 powershell.exe 8->20         started        48 eduarddr.ca 69.49.244.38, 443, 49701, 49704 UNIFIEDLAYER-AS-1US United States 12->48 40 C:\Users\user\AppData\Roaming\...40arrfa.exe, PE32 12->40 dropped 42 C:\Users\user\...42arrfa.exe:Zone.Identifier, ASCII 12->42 dropped 44 SecuriteInfo.com.T...16339.13667.exe.log, ASCII 12->44 dropped 70 Creates multiple autostart registry keys 12->70 22 powershell.exe 16 12->22         started        24 SecuriteInfo.com.Trojan-Downloader.MSIL.Agent.16339.13667.exe 12->24         started        26 netsh.exe 1 15->26         started        28 Narrfa.exe 15->28         started        30 powershell.exe 15->30         started        file6 signatures7 process8 signatures9 50 Maps a DLL or memory area into another process 17->50 52 Sample uses process hollowing technique 17->52 32 conhost.exe 20->32         started        34 conhost.exe 22->34         started        54 Creates multiple autostart registry keys 26->54 36 explorer.exe 28->36 injected 38 conhost.exe 30->38         started        process10
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a9dc361f5933942780cffbc0143cbddce7533683de60dd9eb338b67d8da8fbc0/
Threat name:
ByteCode-MSIL.Trojan.Woreflint
Create hunting rule
Status:
Malicious
First seen:
2022-12-16 03:29:06 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
11 of 39 (28.21%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=vhodmh2zgokcpagp7pabipf53ttvgnud3zqn3hvthc3h3dni7paa._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Result
Malware family:
n/a
Score:
  7/10
Tags:
persistence
Link:
https://tria.ge/reports/221216-d1wsraea63/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Checks computer location settings
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/619584b0-e386-494a-a68f-7309b3306236
Unpacked files
SH256 hash:
a9dc361f5933942780cffbc0143cbddce7533683de60dd9eb338b67d8da8fbc0
MD5 hash:
5243a480986483cc95232fb55e0b88ff
SHA1 hash:
05fcc27faab707cff8a46b7dca8db9ec46259eaa
Link:
https://www.unpac.me/results/0ecee4b3-9619-49b4-bbf9-c784c5ef59bf/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.35
Link:
https://yomi.yoroi.company/submissions/a9dc361f5933942780cffbc0143cbddce7533683de60dd9eb338b67d8da8fbc0

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:INDICATOR_EXE_Packed_SmartAssembly
Create hunting rule
Author:ditekSHen
Description:Detects executables packed with SmartAssembly
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.

Cape
Cape
https://www.capesandbox.com/analysis/346847/

Comments