MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a423d20538a3ed387be79e95ac7b33d017544c2107436cf9ba4c30cf3cc67965. 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 17 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a423d20538a3ed387be79e95ac7b33d017544c2107436cf9ba4c30cf3cc67965
SHA3-384 hash: 16d89da432fe1c97196a12635047cb8339df5f8e8b12e3eb788bd991e0578e405ec1b2f2fa19cf20e2bdd5ff06d97d01
SHA1 hash: f564fba996dcff200dd25f70e91a191993284c1e
MD5 hash: fc00b5619d6ae61462d650846f99a94c
humanhash: california-oklahoma-zulu-violet
File name:OPGHDp9zKtCAbrf.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:780'800 bytes
First seen:2024-06-20 04:16:06 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'461 x Formbook, 12'202 x SnakeKeylogger)
ssdeep 12288:kiZaD3HH3DI+y7kE8tgwIONzp7gfvydBgAUxr6+jRbk8RznRKx1rsJj:xZajH3DIf8tgE5Ky/nUxmIxVwxFsJj
Threatray 4'028 similar samples on MalwareBazaar
TLSH T131F4230035B99919CE7D0B7F65B2D161DB3473C91E52A6DC2F6D3048AE6B78CC071A8B
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)
Reporter mautshim
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
381
Origin country :
ID ID
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
a423d20538a3ed387be79e95ac7b33d017544c2107436cf9ba4c30cf3cc67965.exe
Verdict:
Malicious activity
Analysis date:
2024-06-20 04:17:42 UTC
Tags:
smtp exfiltration stealer agenttesla
Link:
https://app.any.run/tasks/9602ce22-d5d6-4245-9954-fd4460a1ff6a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Win.Packed.Trojanx-10031789-0
Create hunting rule

Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6673ae3689a056395100ccacwin7simulatehigh_evasion
Tags:
Banker Encryption Execution Generic Network Static Msil Dexter
Result
Verdict:
Malware
Maliciousness:

Behaviour
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
Reading critical registry keys
DNS request
Connection attempt
Setting a keyboard event handler
Stealing user critical data
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/a423d20538a3ed387be79e95ac7b33d017544c2107436cf9ba4c30cf3cc67965
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/8f8f1eb0-c738-4e59-a308-1adae9d71ead
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1459863
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
AI detected suspicious sample
Contains functionality to log keystrokes (.Net Source)
Found malware configuration
Installs a global keyboard hook
Loading BitLocker PowerShell Module
Machine Learning detection for dropped file
Machine Learning detection for sample
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
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal ftp login credentials
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: 1459863 Sample: OPGHDp9zKtCAbrf.exe Startdate: 20/06/2024 Architecture: WINDOWS Score: 100 41 mail.funworld.co.id 2->41 43 Found malware configuration 2->43 45 Malicious sample detected (through community Yara rule) 2->45 47 Sigma detected: Scheduled temp file as task from temp location 2->47 49 9 other signatures 2->49 8 OPGHDp9zKtCAbrf.exe 7 2->8         started        12 uqqEYttaL.exe 5 2->12         started        signatures3 process4 file5 33 C:\Users\user\AppData\Roaming\uqqEYttaL.exe, PE32 8->33 dropped 35 C:\Users\...\uqqEYttaL.exe:Zone.Identifier, ASCII 8->35 dropped 37 C:\Users\user\AppData\Local\...\tmp8823.tmp, XML 8->37 dropped 39 C:\Users\user\...\OPGHDp9zKtCAbrf.exe.log, ASCII 8->39 dropped 51 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 8->51 53 Uses schtasks.exe or at.exe to add and modify task schedules 8->53 55 Adds a directory exclusion to Windows Defender 8->55 14 OPGHDp9zKtCAbrf.exe 2 8->14         started        17 powershell.exe 23 8->17         started        19 schtasks.exe 1 8->19         started        57 Multi AV Scanner detection for dropped file 12->57 59 Machine Learning detection for dropped file 12->59 21 uqqEYttaL.exe 2 12->21         started        23 schtasks.exe 1 12->23         started        signatures6 process7 signatures8 61 Installs a global keyboard hook 14->61 63 Loading BitLocker PowerShell Module 17->63 25 WmiPrvSE.exe 17->25         started        27 conhost.exe 17->27         started        29 conhost.exe 19->29         started        65 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 21->65 67 Tries to steal Mail credentials (via file / registry access) 21->67 69 Tries to harvest and steal ftp login credentials 21->69 71 Tries to harvest and steal browser information (history, passwords, etc) 21->71 31 conhost.exe 23->31         started        process9
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/a423d20538a3ed387be79e95ac7b33d017544c2107436cf9ba4c30cf3cc67965
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/a423d20538a3ed387be79e95ac7b33d017544c2107436cf9ba4c30cf3cc67965/
Threat name:
Win32.Spyware.Negasteal
Create hunting rule
Status:
Malicious
First seen:
2024-06-11 10:49:55 UTC
File Type:
PE (.Net Exe)
Extracted files:
7
AV detection:
21 of 24 (87.50%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=uqr5ebjyupwtq67ht2k2y6zt2alvitbba5bwz6n2jqym6pggpfsq._file
Verdict:
malicious
Label(s):
agenttesla_v4
Create hunting rule
agenttesla
Create hunting rule
Similar samples:
26c906adae2ca90e5dc8e69c22e017f1c02243c75ff6cca5da7056c6a74efcca
AgentTesla
3bab8fe003450bf70cd9ec8c2b92d042d92167da4942046f104f6b3139663a96
AgentTesla
8fbf89ff9f1c63329f5251feed90590b8f3bd725e469b5afd25be717f3cb2ca9
AgentTesla
bca6f9ea0755dfa7b91586bb33be2f03a6a5cd065512cca5ab60a8e577f1379c
AgentTesla
+ 4'018 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla execution keylogger spyware stealer trojan
Link:
https://tria.ge/reports/240620-ewc1hssgkn/
Behaviour
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
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
Command and Scripting Interpreter: PowerShell
AgentTesla
Verdict:
Unknown
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/935180f5-c22d-4ed5-a747-d6a4d39f50e7
Unpacked files
SH256 hash:
d78388f7a86b224c84a02520c5f27368af224dd0aa27f2e5878e5dc5cdaf34ff
MD5 hash:
3de92929cea3a0d5a454e70ec76af41e
SHA1 hash:
f2bd900313d8d84879cb39b31ea1e9b5b57c605b
Link:
https://www.unpac.me/results/f90e0826-e7dc-4380-bdac-dd7fc45d8f90/
SH256 hash:
d67867ef93204c27c126a41fa778fcdbf89e34a3750014d8cc4a9394a1300d96
MD5 hash:
cfddc0c2c035e91ecc76782ff513e30a
SHA1 hash:
efd2f376cd2a3574240be6b03c563f42630a6ef7
Link:
https://www.unpac.me/results/f90e0826-e7dc-4380-bdac-dd7fc45d8f90/
Parent samples :
82cbe9fc57abd337a5bf0d0d478ae7fb9158987c1d7c5006b20e309c06329ae8
804aee8eba800043c912038c55c36edeb8dd761913047e99b4a5e8d8cb8ef6c4
SH256 hash:
1a1de9f3fe4c3a7ea7cd547cdd9d78b3873d6e243e544e5bb647452d6d9f6cfe
MD5 hash:
ceb52a5c98659e8905ea76737fe00c01
SHA1 hash:
bb7b30ff84d6aa26eaa0021c9fa3cd2c5a08e694
Link:
https://www.unpac.me/results/f90e0826-e7dc-4380-bdac-dd7fc45d8f90/
SH256 hash:
04547a7f48508fefd40b774e1e95b1b062047479a22cf5bb697d024fac8014c0
MD5 hash:
e3d11e0394e7a09845d191c93802daf2
SHA1 hash:
0d0c326898f453f6f74666715ae5453a0b605a69
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/f90e0826-e7dc-4380-bdac-dd7fc45d8f90/
Parent samples :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 hash:
a423d20538a3ed387be79e95ac7b33d017544c2107436cf9ba4c30cf3cc67965
MD5 hash:
fc00b5619d6ae61462d650846f99a94c
SHA1 hash:
f564fba996dcff200dd25f70e91a191993284c1e
Link:
https://www.unpac.me/results/f90e0826-e7dc-4380-bdac-dd7fc45d8f90/
Malware family:
AgentTesla
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/a423d20538a3/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/a423d20538a3ed387be79e95ac7b33d017544c2107436cf9ba4c30cf3cc67965

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_type2
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
Rule name:INDICATOR_EXE_Packed_GEN01
Create hunting rule
Author:ditekSHen
Description:Detect packed .NET executables. Mostly AgentTeslaV4.
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_imphash
Create hunting rule
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.

Malspam

AgentTesla

Executable exe a423d20538a3ed387be79e95ac7b33d017544c2107436cf9ba4c30cf3cc67965

(this sample)

  
Delivery method
Distributed via e-mail attachment

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 (HIGH_ENTROPY_VA)high

Comments