agenttesla | c95438b7107da932d24c8a04dcf5ab9adccad56086566765c2f7c96cc08ec8d0

Analysis

max time kernel
141s
max time network
36s
platform
windows7_x64
resource
win7v20201028
submitted
31/03/2021, 07:00

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General

Target
New Order_011_033121_pdf.exe
Size 915KB
Sample210331-vmps4nagdj
SHA256 c95438b7107da932d24c8a04dcf5ab9adccad56086566765c2f7c96cc08ec8d0
MD5 7b586be7660763cd62aa17f349966536
SHA1 dde20a34e55f0731f8de627adc944ac849460ce2
SHA512 ca95651454a3ed2d455bdacb13219d3179a03317bc0ec2c69980260c91c18349659ae30123858dce1656e97857284a968dc2b1a9b4dd8315504bd2141173c3d9
MD5 SHA1 SHA512

Score

10^/10

agenttesla keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol
smtp
Host
smtp.marnner.com
Port
587
Username
[email protected]
Password
max@#1235

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla

AgentTesla Payload 3 IoCs

resource	yara_rule
behavioral1/memory/2028-23-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/2028-24-0x00000000004374AE-mapping.dmp	family_agenttesla
behavioral1/memory/2028-27-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla

Executes dropped EXE 2 IoCs

pid	Process
1460	cl.exe
2028	cl.exe

Loads dropped DLL 1 IoCs

pid	Process
748	New Order_011_033121_pdf.exe

Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Windows\CurrentVersion\Run	reg.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Windows\CurrentVersion\Run\cl = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Start Menu\\Programs\\cl.exe"	reg.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1460 set thread context of 2028	1460	cl.exe	33

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
748	New Order_011_033121_pdf.exe
748	New Order_011_033121_pdf.exe
748	New Order_011_033121_pdf.exe
1460	cl.exe
1460	cl.exe
2028	cl.exe
2028	cl.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	748	New Order_011_033121_pdf.exe
Token: SeDebugPrivilege	1460	cl.exe
Token: SeDebugPrivilege	2028	cl.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 748 wrote to memory of 1236	748	New Order_011_033121_pdf.exe	29
PID 748 wrote to memory of 1236	748	New Order_011_033121_pdf.exe	29
PID 748 wrote to memory of 1236	748	New Order_011_033121_pdf.exe	29
PID 748 wrote to memory of 1236	748	New Order_011_033121_pdf.exe	29
PID 1236 wrote to memory of 1452	1236	cmd.exe	31
PID 1236 wrote to memory of 1452	1236	cmd.exe	31
PID 1236 wrote to memory of 1452	1236	cmd.exe	31
PID 1236 wrote to memory of 1452	1236	cmd.exe	31
PID 748 wrote to memory of 1460	748	New Order_011_033121_pdf.exe	32
PID 748 wrote to memory of 1460	748	New Order_011_033121_pdf.exe	32
PID 748 wrote to memory of 1460	748	New Order_011_033121_pdf.exe	32
PID 748 wrote to memory of 1460	748	New Order_011_033121_pdf.exe	32
PID 1460 wrote to memory of 2028	1460	cl.exe	33
PID 1460 wrote to memory of 2028	1460	cl.exe	33
PID 1460 wrote to memory of 2028	1460	cl.exe	33
PID 1460 wrote to memory of 2028	1460	cl.exe	33
PID 1460 wrote to memory of 2028	1460	cl.exe	33
PID 1460 wrote to memory of 2028	1460	cl.exe	33
PID 1460 wrote to memory of 2028	1460	cl.exe	33
PID 1460 wrote to memory of 2028	1460	cl.exe	33
PID 1460 wrote to memory of 2028	1460	cl.exe	33

C:\Users\Admin\AppData\Local\Temp\New Order_011_033121_pdf.exe
"C:\Users\Admin\AppData\Local\Temp\New Order_011_033121_pdf.exe"
1⤵
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:748
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe" /c REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "cl" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\cl.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1236
- - C:\Windows\SysWOW64\reg.exe
    REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "cl" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\cl.exe"
    3⤵
    - Adds Run key to start application
    PID:1452
- C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\cl.exe
  "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\cl.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1460
- - C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\cl.exe
    "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\cl.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2028

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Credentials in Files

T1081

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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Downloads

memory/748-3-0x00000000003B0000-0x00000000003B1000-memory.dmp

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memory/748-5-0x0000000004C80000-0x0000000004C81000-memory.dmp

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memory/748-7-0x0000000005BD0000-0x0000000005BFF000-memory.dmp

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memory/748-2-0x0000000074580000-0x0000000074C6E000-memory.dmp

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memory/748-10-0x0000000004C81000-0x0000000004C82000-memory.dmp

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memory/1460-15-0x0000000074580000-0x0000000074C6E000-memory.dmp

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memory/1460-16-0x0000000000F30000-0x0000000000F31000-memory.dmp

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memory/1460-18-0x0000000004A80000-0x0000000004A81000-memory.dmp

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memory/1460-21-0x0000000000940000-0x000000000094B000-memory.dmp

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memory/1460-22-0x0000000000B60000-0x0000000000B61000-memory.dmp

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memory/2028-23-0x0000000000400000-0x000000000043C000-memory.dmp

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memory/2028-26-0x0000000074580000-0x0000000074C6E000-memory.dmp

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memory/2028-27-0x0000000000400000-0x000000000043C000-memory.dmp

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memory/2028-29-0x0000000004480000-0x0000000004481000-memory.dmp

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memory/2028-30-0x0000000004481000-0x0000000004482000-memory.dmp

Download