MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c4e8c058d4f4a9976ca89a275963e6c4e2b3a2a7e90ad2dd095e173c2f5859bf. 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: 17


Intelligence 17 IOCs YARA 17 File information Comments
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SHA256 hash: c4e8c058d4f4a9976ca89a275963e6c4e2b3a2a7e90ad2dd095e173c2f5859bf
SHA3-384 hash: b9091ae38a74a2faa16adcb0135e860c3401c54851c00e95f887d595c80981899c883b68af82e512f7b76dd68338001c
SHA1 hash: 63551ba6551e9760ce74b2c539518269df22901f
MD5 hash: e37167cc9197965963184969112ee606
humanhash: oxygen-idaho-red-victor
File name:SecuriteInfo.com.Win32.PWSX-gen.15243.30628
Download: download sample
Signature AgentTesla
Create hunting rule
File size:694'272 bytes
First seen:2024-02-16 20:31:10 UTC
Last seen:2024-02-16 21:24:37 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'648 x AgentTesla, 19'452 x Formbook, 12'201 x SnakeKeylogger)
ssdeep 12288:OdQ4W3C0PmP9oY4+1ral3UNgZzplOBo9DwF4Lv6pMR/+MMh5wVCqEF0h4pHN:OvACVPzelaCOGwF4Lv6+VV9Cpt
TLSH T148E42320B5E83F2EE7AC47F10224200157F4A35AF193E785DDFAB4DB09A37640656EA7
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 SecuriteInfoCom
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
328
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
c4e8c058d4f4a9976ca89a275963e6c4e2b3a2a7e90ad2dd095e173c2f5859bf.exe
Verdict:
Malicious activity
Analysis date:
2024-02-16 20:32:11 UTC
Tags:
evasion stealer agenttesla
Link:
https://app.any.run/tasks/e222ce0d-90e6-42f1-b6e8-0eee6e403ecf

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/476550/
Detection(s):
SecuriteInfo.com.Win32.PWSX-gen.15243.30628.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file
Using the Windows Management Instrumentation requests
Creating a window
Сreating synchronization primitives
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a file in the %temp% directory
Creating a process with a hidden window
Launching a process
Unauthorized injection to a recently created process
Restart of the analyzed sample
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/65cfc64422703c34919f0ee0/reports/013772bc-bb66-4995-acf0-33601e68bc4c/overview
Verdict:
Malicious
Labled as:
Variadic.A.410.Generic
Link:
https://www.hybrid-analysis.com/sample/c4e8c058d4f4a9976ca89a275963e6c4e2b3a2a7e90ad2dd095e173c2f5859bf
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/f3057aa9-589b-434c-9508-dda527700d1c
Result
Threat name:
AgentTesla, PureLog Stealer
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1393711
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Check if machine is in data center or colocation facility
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Contains functionality to log keystrokes (.Net Source)
Found malware configuration
Injects a PE file into a foreign processes
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)
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Sample uses string decryption to hide its real strings
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Scheduled temp file as task from temp location
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, 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
Yara detected PureLog Stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1393711 Sample: SecuriteInfo.com.Win32.PWSX... Startdate: 16/02/2024 Architecture: WINDOWS Score: 100 38 us2.smtp.mailhostbox.com 2->38 40 ip-api.com 2->40 46 Found malware configuration 2->46 48 Malicious sample detected (through community Yara rule) 2->48 50 Sigma detected: Scheduled temp file as task from temp location 2->50 52 12 other signatures 2->52 8 SecuriteInfo.com.Win32.PWSX-gen.15243.30628.exe 7 2->8         started        12 aQezmFJb.exe 5 2->12         started        signatures3 process4 file5 34 C:\Users\user\AppData\Roaming\aQezmFJb.exe, PE32 8->34 dropped 36 C:\Users\user\AppData\Local\...\tmp22F1.tmp, XML 8->36 dropped 54 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 8->54 56 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 8->56 58 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 8->58 66 3 other signatures 8->66 14 SecuriteInfo.com.Win32.PWSX-gen.15243.30628.exe 15 2 8->14         started        18 powershell.exe 23 8->18         started        20 schtasks.exe 1 8->20         started        60 Multi AV Scanner detection for dropped file 12->60 62 Machine Learning detection for dropped file 12->62 64 Injects a PE file into a foreign processes 12->64 22 aQezmFJb.exe 14 2 12->22         started        24 schtasks.exe 1 12->24         started        signatures6 process7 dnsIp8 42 ip-api.com 208.95.112.1, 49713, 49718, 80 TUT-ASUS United States 14->42 44 us2.smtp.mailhostbox.com 208.91.199.223, 49714, 49719, 587 PUBLIC-DOMAIN-REGISTRYUS United States 14->44 26 WmiPrvSE.exe 18->26         started        28 conhost.exe 18->28         started        30 conhost.exe 20->30         started        68 Tries to steal Mail credentials (via file / registry access) 22->68 70 Tries to harvest and steal browser information (history, passwords, etc) 22->70 32 conhost.exe 24->32         started        signatures9 process10
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/c4e8c058d4f4a9976ca89a275963e6c4e2b3a2a7e90ad2dd095e173c2f5859bf
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/c4e8c058d4f4a9976ca89a275963e6c4e2b3a2a7e90ad2dd095e173c2f5859bf/
Threat name:
ByteCode-MSIL.Trojan.Variadic
Create hunting rule
Status:
Malicious
First seen:
2024-02-16 10:13:52 UTC
File Type:
PE (.Net Exe)
Extracted files:
11
AV detection:
13 of 36 (36.11%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=ytumawgu6suzo3fititvsy7gytrlhivh5efnfxijlyltyl2ylg7q._file
Verdict:
malicious
Label(s):
agenttesla_v4
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agenttesla
Create hunting rule
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla keylogger spyware stealer trojan
Link:
https://tria.ge/reports/240216-za9sksfh34/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
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 user/profile data of local email clients
Reads user/profile data of web browsers
AgentTesla
Unpacked files
SH256 hash:
a85e8fbf939dbb50660dc230214f7508658ac61c0ff0b14a1ce929a17fbe2e82
MD5 hash:
ed95675f2f7a4650ff296f10cf672eca
SHA1 hash:
fa13154c63802c38d9c086a2065f7b697a739a73
Link:
https://www.unpac.me/results/9eef6205-ea7a-441b-a726-2df7ae2dab67/
SH256 hash:
ab3d870b57ffaac449078340a00ba6e0b2bd551444b1fd04fb2e26f80591f044
MD5 hash:
45e5bc690da784b17a8712f0c9d90b9e
SHA1 hash:
ee44c7590640799d7cf17e7fea505d0fea1741f0
Detections:
INDICATOR_EXE_Packed_SmartAssembly
Create hunting rule
Link:
https://www.unpac.me/results/9eef6205-ea7a-441b-a726-2df7ae2dab67/
Parent samples :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 hash:
72638f4b30cc9dab51d31216991957bf1cd118b8a8743227b3e8f9c4805f7628
MD5 hash:
2a8240bba06e832ee5d136a0a7e5b5b9
SHA1 hash:
de49d9b33004a4a622a4279b3ee2b3e3e5cd012b
Link:
https://www.unpac.me/results/9eef6205-ea7a-441b-a726-2df7ae2dab67/
SH256 hash:
e9c028ecb36a6fb2e3a9f2ce8e58fa444649dd3c47039765cca1967dcc99ef3b
MD5 hash:
65e87dc385029fc40a1d83797b7fbbae
SHA1 hash:
96ee40ce767bf100c7f5c7eb38eda137a9ecd6e5
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_SUSPICIOUS_EXE_SandboxHookingDLL
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/9eef6205-ea7a-441b-a726-2df7ae2dab67/
Parent samples :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 hash:
c4e8c058d4f4a9976ca89a275963e6c4e2b3a2a7e90ad2dd095e173c2f5859bf
MD5 hash:
e37167cc9197965963184969112ee606
SHA1 hash:
63551ba6551e9760ce74b2c539518269df22901f
Link:
https://www.unpac.me/results/9eef6205-ea7a-441b-a726-2df7ae2dab67/
Malware family:
AgentTesla
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/c4e8c058d4f4/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/c4e8c058d4f4a9976ca89a275963e6c4e2b3a2a7e90ad2dd095e173c2f5859bf

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:AgentTesla_DIFF_Common_Strings_01
Create hunting rule
Author:schmidtsz
Description:Identify partial Agent Tesla strings
Rule name:DebuggerCheck__RemoteAPI
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
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_SandboxHookingDLL
Create hunting rule
Author:ditekSHen
Description:Detects binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion
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_Trojan_AgentTesla_ebf431a8
Create hunting rule
Author:Elastic Security

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/476550/

Comments