agenttesla | dfe2978764d493ac195ec5a39d99f998c1d69d9f68e25bbbe090d9b2f7cb97c2

Analysis

max time kernel
127s
max time network
123s
platform
windows10_x64
resource
win10v20201028
submitted
09/11/2020, 20:05

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General

Target
SCHACHERMAYER INQ2.exe
Size 444KB
Sample201109-1fm3m429ba
SHA256 dfe2978764d493ac195ec5a39d99f998c1d69d9f68e25bbbe090d9b2f7cb97c2
MD5 8593b1cec0cbf443f51b1be38eaba1e2
SHA1 9ba1e269f69c7a4d3c18d93bd68d6f78b2356687
SHA512 bb787c21279a0c0686a7def3254ed939390a144ac0264129cbdb5f79e35008487daa3ca99a037ca4027284f0b9fd6a0899850b60cce4640f2970f416e4395d73
MD5 SHA1 SHA512

Score

10^/10

agenttesla agilenet keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol
smtp
Host
mail.okgrocer.co.za
Port
587
Username
[email protected]
Password
Theunis@123

Signatures

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

AgentTesla Payload 13 IoCs

resource	yara_rule
behavioral2/memory/3980-28-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral2/memory/3980-29-0x000000000044CACE-mapping.dmp	family_agenttesla
behavioral2/memory/3980-41-0x000000000044CACE-mapping.dmp	family_agenttesla
behavioral2/memory/3980-40-0x000000000044CACE-mapping.dmp	family_agenttesla
behavioral2/memory/3980-42-0x000000000044CACE-mapping.dmp	family_agenttesla
behavioral2/memory/3980-44-0x000000000044CACE-mapping.dmp	family_agenttesla
behavioral2/memory/3980-45-0x000000000044CACE-mapping.dmp	family_agenttesla
behavioral2/memory/3980-47-0x000000000044CACE-mapping.dmp	family_agenttesla
behavioral2/memory/3980-46-0x000000000044CACE-mapping.dmp	family_agenttesla
behavioral2/memory/3980-49-0x000000000044CACE-mapping.dmp	family_agenttesla
behavioral2/memory/3980-48-0x000000000044CACE-mapping.dmp	family_agenttesla
behavioral2/memory/3980-43-0x000000000044CACE-mapping.dmp	family_agenttesla
behavioral2/memory/3980-50-0x000000000044CACE-mapping.dmp	family_agenttesla

Executes dropped EXE 2 IoCs

pid	Process
568	winservie.exe
3980	InstallUtil.exe

Obfuscated with Agile.Net obfuscator 1 IoCs

Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.

agilenet

resource	yara_rule
behavioral2/memory/1180-3-0x0000000000C90000-0x0000000000C9F000-memory.dmp	agile_net

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

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

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

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-1-5-21-3341490333-719741536-2920803124-1000\Software\Microsoft\Windows\CurrentVersion\Run	reg.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000\Software\Microsoft\Windows\CurrentVersion\Run\winservie = "C:\\Windows\\system32\\pcalua.exe -a C:\\Users\\Admin\\AppData\\Roaming\\winservie.exe"	reg.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 568 set thread context of 3980	568	winservie.exe	83

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
772	3980	WerFault.exe	83

Suspicious behavior: EnumeratesProcesses 32 IoCs

pid	Process
1180	SCHACHERMAYER INQ2.exe
1180	SCHACHERMAYER INQ2.exe
1180	SCHACHERMAYER INQ2.exe
1180	SCHACHERMAYER INQ2.exe
1180	SCHACHERMAYER INQ2.exe
1180	SCHACHERMAYER INQ2.exe
1180	SCHACHERMAYER INQ2.exe
1180	SCHACHERMAYER INQ2.exe
1180	SCHACHERMAYER INQ2.exe
1180	SCHACHERMAYER INQ2.exe
1180	SCHACHERMAYER INQ2.exe
1180	SCHACHERMAYER INQ2.exe
1180	SCHACHERMAYER INQ2.exe
1180	SCHACHERMAYER INQ2.exe
568	winservie.exe
568	winservie.exe
568	winservie.exe
3980	InstallUtil.exe
3980	InstallUtil.exe
772	WerFault.exe
772	WerFault.exe
772	WerFault.exe
772	WerFault.exe
772	WerFault.exe
772	WerFault.exe
772	WerFault.exe
772	WerFault.exe
772	WerFault.exe
772	WerFault.exe
772	WerFault.exe
772	WerFault.exe
772	WerFault.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	1180	SCHACHERMAYER INQ2.exe
Token: SeDebugPrivilege	568	winservie.exe
Token: SeDebugPrivilege	3980	InstallUtil.exe
Token: SeRestorePrivilege	772	WerFault.exe
Token: SeBackupPrivilege	772	WerFault.exe
Token: SeDebugPrivilege	772	WerFault.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 1180 wrote to memory of 908	1180	SCHACHERMAYER INQ2.exe	79
PID 1180 wrote to memory of 908	1180	SCHACHERMAYER INQ2.exe	79
PID 1180 wrote to memory of 908	1180	SCHACHERMAYER INQ2.exe	79
PID 908 wrote to memory of 972	908	cmd.exe	81
PID 908 wrote to memory of 972	908	cmd.exe	81
PID 908 wrote to memory of 972	908	cmd.exe	81
PID 1180 wrote to memory of 568	1180	SCHACHERMAYER INQ2.exe	82
PID 1180 wrote to memory of 568	1180	SCHACHERMAYER INQ2.exe	82
PID 1180 wrote to memory of 568	1180	SCHACHERMAYER INQ2.exe	82
PID 568 wrote to memory of 3980	568	winservie.exe	83
PID 568 wrote to memory of 3980	568	winservie.exe	83
PID 568 wrote to memory of 3980	568	winservie.exe	83
PID 568 wrote to memory of 3980	568	winservie.exe	83
PID 568 wrote to memory of 3980	568	winservie.exe	83
PID 568 wrote to memory of 3980	568	winservie.exe	83
PID 568 wrote to memory of 3980	568	winservie.exe	83
PID 568 wrote to memory of 3980	568	winservie.exe	83

C:\Users\Admin\AppData\Local\Temp\SCHACHERMAYER INQ2.exe
"C:\Users\Admin\AppData\Local\Temp\SCHACHERMAYER INQ2.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1180
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe" /c REG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run /f /v winservie /t REG_SZ /d C:\Windows\system32\pcalua.exe" -a C:\Users\Admin\AppData\Roaming\winservie.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:908
- - C:\Windows\SysWOW64\reg.exe
    REG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run /f /v winservie /t REG_SZ /d C:\Windows\system32\pcalua.exe" -a C:\Users\Admin\AppData\Roaming\winservie.exe"
    3⤵
    - Adds Run key to start application
    PID:972
- C:\Users\Admin\AppData\Roaming\winservie.exe
  "C:\Users\Admin\AppData\Roaming\winservie.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:568
- - C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe
    "C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3980
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3980 -s 1452
      4⤵
      Program crash
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:772

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/568-27-0x0000000005850000-0x0000000005851000-memory.dmp

Download

memory/568-16-0x0000000073D20000-0x000000007440E000-memory.dmp

Download

memory/772-51-0x0000000005360000-0x0000000005361000-memory.dmp

Download

memory/772-39-0x0000000004B30000-0x0000000004B31000-memory.dmp

Download

memory/1180-0-0x0000000073D20000-0x000000007440E000-memory.dmp

Download

memory/1180-9-0x00000000058D0000-0x00000000058D2000-memory.dmp

Download

memory/1180-8-0x0000000005E70000-0x0000000005E71000-memory.dmp

Download

memory/1180-7-0x00000000057E0000-0x00000000057E2000-memory.dmp

Download

memory/1180-6-0x00000000057F0000-0x00000000057F1000-memory.dmp

Download

memory/1180-1-0x0000000000280000-0x0000000000281000-memory.dmp

Download

memory/1180-5-0x0000000005020000-0x0000000005022000-memory.dmp

Download

memory/1180-3-0x0000000000C90000-0x0000000000C9F000-memory.dmp

Download

memory/1180-4-0x0000000005050000-0x0000000005051000-memory.dmp

Download

memory/3980-37-0x0000000005250000-0x0000000005251000-memory.dmp

Download

memory/3980-32-0x0000000073D20000-0x000000007440E000-memory.dmp

Download

memory/3980-38-0x0000000005B00000-0x0000000005B01000-memory.dmp

Download

memory/3980-36-0x0000000004F30000-0x0000000004F31000-memory.dmp

Download

memory/3980-28-0x0000000000400000-0x0000000000452000-memory.dmp

Download