MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 04905ab74af1d34a39fdb2609f02e26f5a45f9404874e70efdb9b723d7cd6b9e. 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


AgentTesla


Vendor detections: 18


Intelligence 18 IOCs YARA 20 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 04905ab74af1d34a39fdb2609f02e26f5a45f9404874e70efdb9b723d7cd6b9e
SHA3-384 hash: d00211d89a2aab1eb9e4ebea1607cb36242cb7eed2a6b48aa051617b7a7fe0227bd8a81b33c2e20904a29e4800c8d0ba
SHA1 hash: 1020f8509f0d3e658f0f769481e800541ae3e764
MD5 hash: 036ab2261f2c1d02c67dfd53081bbd9d
humanhash: hawaii-apart-kitten-enemy
File name:SKM_C3350i2402291223.bat
Download: download sample
Signature AgentTesla
Create hunting rule
File size:760'840 bytes
First seen:2024-04-15 13:11:16 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'738 x AgentTesla, 19'596 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:mZnNBePtI9oo1VU820ajUpZIys1qn/ZWSIJJpE6XS87u66RWPXTXRkR:unNUSX1V/FUsRWSOJT6kTc
Threatray 711 similar samples on MalwareBazaar
TLSH T125F41240BD6C8B1AE23E6BF9D03857604FB27455E414E2CA6E8774C9F933F41461AA8F
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) (4504/4/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
File icon (PE):PE icon
dhash icon c0d0b6ca8a8ad2a2 (3 x RemcosRAT, 1 x AgentTesla)
Reporter James_inthe_box
Tags:AgentTesla bat exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
345
Origin country :
US US
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
04905ab74af1d34a39fdb2609f02e26f5a45f9404874e70efdb9b723d7cd6b9e.exe
Verdict:
Malicious activity
Analysis date:
2024-04-15 13:20:03 UTC
Tags:
stealer agenttesla
Link:
https://app.any.run/tasks/9cb3d986-2491-4f20-b51c-8d9487baf803

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Сreating synchronization primitives
Creating a process with a hidden window
Creating a file in the %temp% directory
Launching a process
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Using the Windows Management Instrumentation requests
DNS request
Connection attempt
Sending a custom TCP request
Reading critical registry keys
Setting a keyboard event handler
Stealing user critical data
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
explorer lolbin masquerade overlay packed
Link:
https://www.filescan.io/uploads/661d27a375339da04f91f49f/reports/fb6ef6ec-bd29-4479-9bc2-829c5f0ec59b/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/04905ab74af1d34a39fdb2609f02e26f5a45f9404874e70efdb9b723d7cd6b9e
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:
Agent Tesla
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/9eb52cad-d685-49f0-8c7e-44d996225683
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1426093
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Adds a directory exclusion to Windows Defender
Contains functionality to log keystrokes (.Net Source)
Contains functionality to register a low level keyboard hook
Found malware configuration
Injects a PE file into a foreign processes
Installs a global keyboard hook
Loading BitLocker PowerShell Module
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Scheduled temp file as task from temp location
Snort IDS alert for network traffic
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AgentTesla
Yara detected AntiVM3
Yara detected Generic Downloader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1426093 Sample: SKM_C3350i2402291223.bat.exe Startdate: 15/04/2024 Architecture: WINDOWS Score: 100 42 mail.hd-izmir.com 2->42 44 api.ipify.org 2->44 46 _kerberos._tcp.dc._msdcs.hd-izmir.com 2->46 52 Snort IDS alert for network traffic 2->52 54 Found malware configuration 2->54 56 Malicious sample detected (through community Yara rule) 2->56 58 9 other signatures 2->58 8 SKM_C3350i2402291223.bat.exe 7 2->8         started        12 HUvCjedP.exe 5 2->12         started        signatures3 process4 file5 38 C:\Users\user\AppData\Roaming\HUvCjedP.exe, PE32 8->38 dropped 40 C:\Users\user\AppData\Local\...\tmp6AC3.tmp, XML 8->40 dropped 60 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 8->60 62 Contains functionality to register a low level keyboard hook 8->62 64 Uses schtasks.exe or at.exe to add and modify task schedules 8->64 66 Adds a directory exclusion to Windows Defender 8->66 14 SKM_C3350i2402291223.bat.exe 15 2 8->14         started        18 powershell.exe 23 8->18         started        20 schtasks.exe 1 8->20         started        22 SKM_C3350i2402291223.bat.exe 8->22         started        68 Multi AV Scanner detection for dropped file 12->68 70 Injects a PE file into a foreign processes 12->70 24 HUvCjedP.exe 12->24         started        26 schtasks.exe 12->26         started        28 HUvCjedP.exe 12->28         started        signatures6 process7 dnsIp8 48 mail.hd-izmir.com 77.245.148.65, 49706, 49710, 49711 NIOBEBILISIMHIZMETLERITR Turkey 14->48 50 api.ipify.org 172.67.74.152, 443, 49704, 49709 CLOUDFLARENETUS United States 14->50 72 Installs a global keyboard hook 14->72 74 Loading BitLocker PowerShell Module 18->74 30 WmiPrvSE.exe 18->30         started        32 conhost.exe 18->32         started        34 conhost.exe 20->34         started        76 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 24->76 78 Tries to steal Mail credentials (via file / registry access) 24->78 80 Tries to harvest and steal browser information (history, passwords, etc) 24->80 36 conhost.exe 26->36         started        signatures9 process10
Score:
98%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/04905ab74af1d34a39fdb2609f02e26f5a45f9404874e70efdb9b723d7cd6b9e
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/04905ab74af1d34a39fdb2609f02e26f5a45f9404874e70efdb9b723d7cd6b9e/
Threat name:
ByteCode-MSIL.Spyware.Negasteal
Create hunting rule
Status:
Malicious
First seen:
2024-04-15 01:05:01 UTC
File Type:
PE (.Net Exe)
Extracted files:
14
AV detection:
22 of 38 (57.89%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=asifvn2k6hjuuop5wjqj6axcn5nel6kajb2oodx5xg3shv6nnopa._file
Verdict:
malicious
Label(s):
agenttesla_v4
Create hunting rule
agenttesla
Create hunting rule
Similar samples:
04905ab74af1d34a39fdb2609f02e26f5a45f9404874e70efdb9b723d7cd6b9e
AgentTesla
4ec8f72bf35c4a1de223b92521d3e0c996809eaf52f50960d8580e89be6152e7
AgentTesla
7d17f84cab786296bb3ac7001e3706f112db5b69c82789b709f6cec2ea0fd116
AgentTesla
d82adbafec869ce93ab6133e0f88ae81e1f138d6f31bd90aa054fc4331001169
AgentTesla
fe713895248de4b043b3427642117fb02d309dcacd002d7f183e07112976b515
AgentTesla
+ 701 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla keylogger spyware stealer trojan
Link:
https://tria.ge/reports/240415-qfg53she21/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Looks up external IP address via web service
Checks computer location settings
Reads WinSCP keys stored on the system
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
AgentTesla
Unpacked files
SH256 hash:
960b1d128b5641a5b8621a5c92c2ba41ab225151c72b6efcbcf639decbab99ae
MD5 hash:
24d57fbf4d04d6990df593e021e38246
SHA1 hash:
93e03e87f095a220356b92063928aa0738a87776
Detections:
AgentTesla
Create hunting rule
win_agent_tesla_g2
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
Create hunting rule
Agenttesla_type2
Create hunting rule
INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
Create hunting rule
INDICATOR_EXE_Packed_GEN01
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
Create hunting rule
Link:
https://www.unpac.me/results/3b615e74-d44b-4075-a8eb-b9fa61a8f5a3/
SH256 hash:
0b55016d4354fa25da6837c4091a7d7339f74babdf4afc9991c033819bc779f7
MD5 hash:
ef0dbd1748387f6dd814641e9d16df25
SHA1 hash:
6d42bd9eb57d42a7d8cf2898f5a25b2d279f1d2a
Link:
https://www.unpac.me/results/3b615e74-d44b-4075-a8eb-b9fa61a8f5a3/
SH256 hash:
5a9e64482afd6406319b956396c12b8e165f2d2e95ecda530bbbcd436e52f6e2
MD5 hash:
e7cd8fd81000b26f810afc96c537be95
SHA1 hash:
2959baf46a5d0c671530fc5f2a1e34a7eed6958f
Link:
https://www.unpac.me/results/3b615e74-d44b-4075-a8eb-b9fa61a8f5a3/
SH256 hash:
7fe9c1b945c11098c9696bef705bf6dd505fc6e778c4afcdf3bb2df079b3ca34
MD5 hash:
f0f57bbf73b2d96fbdf606cdd39c8869
SHA1 hash:
198cacecc51dedbd802505be8ebd6231d8029264
Link:
https://www.unpac.me/results/3b615e74-d44b-4075-a8eb-b9fa61a8f5a3/
SH256 hash:
04905ab74af1d34a39fdb2609f02e26f5a45f9404874e70efdb9b723d7cd6b9e
MD5 hash:
036ab2261f2c1d02c67dfd53081bbd9d
SHA1 hash:
1020f8509f0d3e658f0f769481e800541ae3e764
Detections:
INDICATOR_KB_CERT_7c1118cbbadc95da3752c46e47a27438
Create hunting rule
Link:
https://www.unpac.me/results/3b615e74-d44b-4075-a8eb-b9fa61a8f5a3/
Malware family:
AgentTesla
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/04905ab74af1/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
AgentTesla
Score:
0.90
Link:
https://yomi.yoroi.company/submissions/04905ab74af1d34a39fdb2609f02e26f5a45f9404874e70efdb9b723d7cd6b9e

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:AgentTeslaV3
Create hunting rule
Author:ditekshen
Description:AgentTeslaV3 infostealer payload
Rule name:AgentTeslaV5
Create hunting rule
Author:ClaudioWayne
Description:AgentTeslaV5 infostealer payload
Rule name:AgentTesla_DIFF_Common_Strings_01
Create hunting rule
Author:schmidtsz
Description:Identify partial Agent Tesla strings
Rule name:INDICATOR_EXE_Packed_GEN01
Create hunting rule
Author:ditekSHen
Description:Detect packed .NET executables. Mostly AgentTeslaV4.
Rule name:INDICATOR_KB_CERT_7c1118cbbadc95da3752c46e47a27438
Create hunting rule
Author:ditekSHen
Description:Detects executables signed with stolen, revoked or invalid certificates
Rule name:INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
Author:ditekSHen
Description:Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.
Rule name:INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing many email and collaboration clients. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing many file transfer clients. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing Windows vault credential objects. Observed in infostealers
Rule name:malware_Agenttesla_type2
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:pe_imphash
Create hunting rule
Rule name:PE_Potentially_Signed_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:Windows_Generic_Threat_9f4a80b2
Create hunting rule
Author:Elastic Security
Rule name:Windows_Trojan_AgentTesla_ebf431a8
Create hunting rule
Author:Elastic Security
Reference:https://www.elastic.co/security-labs/attack-chain-leads-to-xworm-and-agenttesla

File information

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

  
Delivery method
Other

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (GUARD_CF)high

Comments