agenttesla | 358d4134136cd4473bfbac7f71e7eb4529045a44f0aca04cee35ba2e0c5d783a

General

Target
Bank Report.Doc.exe
Size 519KB
Sample200830-n2gnvqtbrx
SHA256 358d4134136cd4473bfbac7f71e7eb4529045a44f0aca04cee35ba2e0c5d783a
MD5 06da760a5f62abebc57a8a015fc00fa7
SHA1 9de3d1ea97b8753550a067c66adf11ef2d9686fb
SHA512 c540b3f3d3488c8c2a6c92866c1aa5cf276630202ca55229ba77fd603fb04975c62dc597588c42e1bbf5656f7749576b1588115304dffca5f0fbc78e4de924df
MD5 SHA1 SHA512

Score

10^/10

keylogger stealer persistence spyware trojan agenttesla

Malware Config

Extracted

Credentials

Protocol
smtp
Host
smtp.coffiices.com
Port
587
Username
[email protected]
Password
E5%lCvZ{l[6FG

Signatures

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

AgentTesla Payload 3 IoCs

keylogger stealer

resource	yara_rule
behavioral2/memory/2104-12-0x0000000000400000-0x000000000044C000-memory.dmp	agent_tesla
behavioral2/memory/2104-12-0x0000000000400000-0x000000000044C000-memory.dmp	agent_tesla
behavioral2/memory/2104-13-0x000000000044761E-mapping.dmp	agent_tesla

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	Bank Report.Doc.exe

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 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1400429095-533421673-2598934218-1000\Software\Microsoft\Windows\CurrentVersion\Run\goICPG = "C:\\Users\\Admin\\AppData\\Roaming\\goICPG\\goICPG.exe"	Bank Report.Doc.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2076 set thread context of 2104	2076	Bank Report.Doc.exe	77

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\ServiceProfiles\LocalService\winhttp\cachev3.dat	svchost.exe

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

T1053

pid	Process
3932	schtasks.exe

Modifies data under HKEY_USERS 6 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-19\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	svchost.exe
Key created	\REGISTRY\USER\S-1-5-19\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0e-3e-6f-2c-c8-c7	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-19\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0e-3e-6f-2c-c8-c7\WpadDecisionReason = "1"	svchost.exe
Set value (data)	\REGISTRY\USER\S-1-5-19\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0e-3e-6f-2c-c8-c7\WpadDecisionTime = ed906b3dbb7ed601	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-19\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0e-3e-6f-2c-c8-c7\WpadDecision = "0"	svchost.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\windows\CurrentVersion\Internet Settings\Connections	svchost.exe

Modifies registry key 1 TTPs 1 IoCs

Modify Registry

T1112

pid	Process
3512	REG.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
2076	Bank Report.Doc.exe
2076	Bank Report.Doc.exe
2076	Bank Report.Doc.exe
2104	Bank Report.Doc.exe
2104	Bank Report.Doc.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeShutdownPrivilege	856	svchost.exe
Token: SeCreatePagefilePrivilege	856	svchost.exe
Token: SeDebugPrivilege	2076	Bank Report.Doc.exe
Token: SeDebugPrivilege	2104	Bank Report.Doc.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 2076 wrote to memory of 3932	2076	Bank Report.Doc.exe	75
PID 2076 wrote to memory of 3932	2076	Bank Report.Doc.exe	75
PID 2076 wrote to memory of 3932	2076	Bank Report.Doc.exe	75
PID 2076 wrote to memory of 2104	2076	Bank Report.Doc.exe	77
PID 2076 wrote to memory of 2104	2076	Bank Report.Doc.exe	77
PID 2076 wrote to memory of 2104	2076	Bank Report.Doc.exe	77
PID 2076 wrote to memory of 2104	2076	Bank Report.Doc.exe	77
PID 2076 wrote to memory of 2104	2076	Bank Report.Doc.exe	77
PID 2076 wrote to memory of 2104	2076	Bank Report.Doc.exe	77
PID 2076 wrote to memory of 2104	2076	Bank Report.Doc.exe	77
PID 2076 wrote to memory of 2104	2076	Bank Report.Doc.exe	77
PID 2104 wrote to memory of 3512	2104	Bank Report.Doc.exe	79
PID 2104 wrote to memory of 3512	2104	Bank Report.Doc.exe	79
PID 2104 wrote to memory of 3512	2104	Bank Report.Doc.exe	79

C:\Users\Admin\AppData\Local\Temp\Bank Report.Doc.exe
"C:\Users\Admin\AppData\Local\Temp\Bank Report.Doc.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2076
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\kBaWPAg" /XML "C:\Users\Admin\AppData\Local\Temp\tmp4E30.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:3932
- C:\Users\Admin\AppData\Local\Temp\Bank Report.Doc.exe
  "{path}"
  2⤵
  - Drops file in Drivers directory
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2104
- - C:\Windows\SysWOW64\REG.exe
    REG add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System / v DisableTaskMgr / t REG_DWORD / d 1 / f
    3⤵
    - Modifies registry key
    PID:3512

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalService -s WinHttpAutoProxySvc
1⤵
- Drops file in Windows directory
- Modifies data under HKEY_USERS
- Suspicious use of AdjustPrivilegeToken
PID:856

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Registry Run Keys / Startup Folder

Scheduled Task

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Modify Registry

2

T1112

Credential Access

Credentials in Files

3

T1081

Discovery

Lateral Movement

Collection

Data from Local System

3

T1005

Command and Control

Exfiltration

Impact

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Downloads

memory/2076-9-0x00000000086F0000-0x0000000008749000-memory.dmp

Download

memory/2076-4-0x0000000005030000-0x0000000005031000-memory.dmp

Download

memory/2076-5-0x0000000005190000-0x0000000005191000-memory.dmp

Download

memory/2076-6-0x00000000053D0000-0x00000000053D3000-memory.dmp

Download

memory/2076-7-0x0000000008680000-0x00000000086EB000-memory.dmp

Download

memory/2076-8-0x0000000008790000-0x0000000008791000-memory.dmp

Download

memory/2076-0-0x0000000073530000-0x0000000073C1E000-memory.dmp

Download

memory/2076-1-0x0000000000770000-0x0000000000771000-memory.dmp

Download

memory/2076-3-0x0000000005470000-0x0000000005471000-memory.dmp

Download

memory/2104-12-0x0000000000400000-0x000000000044C000-memory.dmp

Download

memory/2104-15-0x0000000073530000-0x0000000073C1E000-memory.dmp

Download

memory/2104-20-0x0000000005630000-0x0000000005631000-memory.dmp

Download

memory/2104-21-0x00000000061C0000-0x00000000061C1000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads