agenttesla | 24726ed81db62d790db5be500438ff2f2cb333ef1d381d080903f0ee29110637

General

Target
Swift Copy.pdf.exe
Size 1.3MB
Sample220412-hvb9dagccp
SHA256 f5cf5e1d41419e2e2283e3548eb60ea029fa7d24344f3af4536ba8b2363dafda
MD5 ef280962b243a60441b2e9197569857c
SHA1 17852ba8bbcf6d29b29b6d46eee714ba19dabe43
SHA512 8e8c37e2083b1922c4f221caebaf727382417c163792f85c91adb1d5f34cf8786776f22edaa01ee985263f89617db82409b4ef0e5558928ab0fc108953005bf3
MD5 SHA1 SHA512

Score

10^/10

agenttesla collection keylogger persistence spyware stealer suricata trojan

Malware Config

Extracted

Credentials

Protocol
smtp
Host
webmail.mdist.us
Port
587
Username
[email protected]
Password
Info#4321

Extracted

Family

agenttesla

Credentials

Protocol
smtp
Host
webmail.mdist.us
Port
587
Username
[email protected]
Password
Info#4321

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla
suricata: ET MALWARE AgentTesla Exfil Via SMTP
suricata: ET MALWARE AgentTesla Exfil Via SMTP
suricata

Drops file in Drivers directory 1 IoCs

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

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1082102374-1487407228-1886994731-1000\Control Panel\International\Geo\Nation	Swift Copy.pdf.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1082102374-1487407228-1886994731-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-1082102374-1487407228-1886994731-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-1082102374-1487407228-1886994731-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

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-1-5-21-1082102374-1487407228-1886994731-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tbKkO = "C:\\Users\\Admin\\AppData\\Roaming\\tbKkO\\tbKkO.exe"	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 376 set thread context of 3216	376	Swift Copy.pdf.exe	87

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

System Information Discovery
T1082

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
528	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
376	Swift Copy.pdf.exe
3216	RegSvcs.exe
3216	RegSvcs.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	376	Swift Copy.pdf.exe
Token: SeDebugPrivilege	3216	RegSvcs.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 376 wrote to memory of 528	376	Swift Copy.pdf.exe	85
PID 376 wrote to memory of 528	376	Swift Copy.pdf.exe	85
PID 376 wrote to memory of 528	376	Swift Copy.pdf.exe	85
PID 376 wrote to memory of 3216	376	Swift Copy.pdf.exe	87
PID 376 wrote to memory of 3216	376	Swift Copy.pdf.exe	87
PID 376 wrote to memory of 3216	376	Swift Copy.pdf.exe	87
PID 376 wrote to memory of 3216	376	Swift Copy.pdf.exe	87
PID 376 wrote to memory of 3216	376	Swift Copy.pdf.exe	87
PID 376 wrote to memory of 3216	376	Swift Copy.pdf.exe	87
PID 376 wrote to memory of 3216	376	Swift Copy.pdf.exe	87
PID 376 wrote to memory of 3216	376	Swift Copy.pdf.exe	87

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1082102374-1487407228-1886994731-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1082102374-1487407228-1886994731-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\Swift Copy.pdf.exe
"C:\Users\Admin\AppData\Local\Temp\Swift Copy.pdf.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:376
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\saSScFGOhTC" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD98C.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:528
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "{path}"
  2⤵
  - Drops file in Drivers directory
  - Accesses Microsoft Outlook profiles
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:3216

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

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Email Collection

1

T1114

Command and Control

Exfiltration

Impact

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Downloads

tmpD98C.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmpD98C.tmp
Size 1KB
SHA256 6a2d8b8880c35a3e27aa7e7852a5c7c686a1731cf58cd762c2eb62083656dd6a
MD5 6256535be306c2bbaaf14ec41300e0ca
SHA1 6d56b6b8fa16075d5df7b901cb951559cd921336
SHA512 f0b1432dec0c821454d2345cf05b1fd28191ba69c7fd4ad1f574cb6e7ec5232914ddc8565115f77483a859a4ea9aee2999b64cca2b9639dc398aaecb056b6377
MD5 SHA1 SHA512

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memory/376-124-0x00000000003A0000-0x00000000004F8000-memory.dmp

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memory/376-125-0x0000000004EB0000-0x0000000004F4C000-memory.dmp

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memory/376-126-0x0000000005500000-0x0000000005AA4000-memory.dmp

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memory/376-127-0x0000000004F50000-0x0000000004FE2000-memory.dmp

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memory/376-128-0x0000000004EA0000-0x0000000004EAA000-memory.dmp

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memory/376-129-0x0000000005180000-0x00000000051D6000-memory.dmp

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memory/3216-133-0x0000000000400000-0x000000000046E000-memory.dmp

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memory/3216-134-0x0000000005590000-0x00000000055F6000-memory.dmp

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memory/3216-135-0x0000000006330000-0x0000000006380000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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