agenttesla | 5de3a725e202d9b3135102036a2d460cf6a00eed4e4839af7577cd6e00743752

Analysis

max time kernel
4294178s
max time network
143s
platform
windows7_x64
resource
win7-20220311-en
submitted
21/03/2022, 08:57

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General

Target
（引用）.exe
Size 10KB
Sample220321-kwlkjsahgr
SHA256 5de3a725e202d9b3135102036a2d460cf6a00eed4e4839af7577cd6e00743752
MD5 e9277576e2241c80448a4e5c08edeeac
SHA1 c779297474de13a71ee1ebf47201d2dbf60e462e
SHA512 c4299fe192759040c5be7f8980f4ed6bbc73385fc8c616aaafd86bb251e34d97bd3faea56079d609b848c27c6a6f9e20ced5035b67c3296f78da4d9a7eb2b05b
MD5 SHA1 SHA512

Score

10^/10

agenttesla collection keylogger persistence spyware stealer suricata trojan

Malware Config

Extracted

Credentials

Protocol
smtp
Host
mail.kosmen.vn
Port
587
Username
[email protected]
Password
Kosmen.2021

Extracted

Family

agenttesla

Credentials

Protocol
smtp
Host
mail.kosmen.vn
Port
587
Username
[email protected]
Password
Kosmen.2021
Email to
[email protected]

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

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2199625441-3471261906-229485034-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe
Key opened	\REGISTRY\USER\S-1-5-21-2199625441-3471261906-229485034-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe
Key opened	\REGISTRY\USER\S-1-5-21-2199625441-3471261906-229485034-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2199625441-3471261906-229485034-1000\Software\Microsoft\Windows\CurrentVersion\Run\Kliovxtpt = "\"C:\\Users\\Admin\\AppData\\Roaming\\Bvotv\\Kliovxtpt.exe\""	（引用）.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2199625441-3471261906-229485034-1000\Software\Microsoft\Windows\CurrentVersion\Run\newapp = "C:\\Users\\Admin\\AppData\\Roaming\\newapp\\newapp.exe"	MSBuild.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 304 set thread context of 1400	304	（引用）.exe	27

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
304	（引用）.exe
1400	MSBuild.exe
1400	MSBuild.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	304	（引用）.exe
Token: SeDebugPrivilege	1400	MSBuild.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1400	MSBuild.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 304 wrote to memory of 1400	304	（引用）.exe	27
PID 304 wrote to memory of 1400	304	（引用）.exe	27
PID 304 wrote to memory of 1400	304	（引用）.exe	27
PID 304 wrote to memory of 1400	304	（引用）.exe	27
PID 304 wrote to memory of 1400	304	（引用）.exe	27
PID 304 wrote to memory of 1400	304	（引用）.exe	27
PID 304 wrote to memory of 1400	304	（引用）.exe	27
PID 304 wrote to memory of 1400	304	（引用）.exe	27
PID 304 wrote to memory of 1400	304	（引用）.exe	27

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2199625441-3471261906-229485034-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2199625441-3471261906-229485034-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe

C:\Users\Admin\AppData\Local\Temp\（引用）.exe
"C:\Users\Admin\AppData\Local\Temp\（引用）.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:304
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  2⤵
  - Accesses Microsoft Outlook profiles
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - outlook_office_path
  - outlook_win_path
  PID:1400

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

Discovery

Lateral Movement

Collection

Email Collection

T1114

Command and Control

Exfiltration

Impact

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Downloads

memory/304-54-0x0000000000230000-0x0000000000238000-memory.dmp

Download

memory/304-55-0x0000000075DF1000-0x0000000075DF3000-memory.dmp

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memory/304-56-0x0000000074390000-0x0000000074A7E000-memory.dmp

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memory/304-57-0x0000000000780000-0x0000000000781000-memory.dmp

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memory/304-58-0x0000000004D50000-0x0000000004DDA000-memory.dmp

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memory/304-59-0x00000000048B0000-0x00000000048F6000-memory.dmp

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memory/304-60-0x0000000004C30000-0x0000000004C72000-memory.dmp

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memory/304-61-0x0000000005160000-0x00000000051A2000-memory.dmp

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memory/304-62-0x00000000053A0000-0x00000000053EC000-memory.dmp

Download

memory/1400-63-0x0000000000400000-0x000000000043A000-memory.dmp

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memory/1400-65-0x0000000000400000-0x000000000043A000-memory.dmp

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memory/1400-67-0x0000000000400000-0x000000000043A000-memory.dmp

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memory/1400-69-0x0000000000400000-0x000000000043A000-memory.dmp

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memory/1400-71-0x0000000000400000-0x000000000043A000-memory.dmp

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memory/1400-73-0x0000000000400000-0x000000000043A000-memory.dmp

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memory/1400-75-0x0000000000400000-0x000000000043A000-memory.dmp

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memory/1400-76-0x0000000074390000-0x0000000074A7E000-memory.dmp

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memory/1400-77-0x0000000004DD0000-0x0000000004DD1000-memory.dmp

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memory/1400-78-0x0000000004DD1000-0x0000000004DD2000-memory.dmp

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