agenttesla | a9b054542a826b81fbc7f53971bb54087d29f8cf50d7f375ff148a2d53b0005d

Analysis

max time kernel
87s
max time network
56s
platform
windows7_x64
resource
win7
submitted
25/06/2020, 05:55

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General

Target
New Orders- POB001745.exe
Size 485KB
Sample200625-1msgpaz8vn
SHA256 a9b054542a826b81fbc7f53971bb54087d29f8cf50d7f375ff148a2d53b0005d
MD5 1f72a6e5a76286628ae7ca163bceb4ca
SHA1 11e1449878212eb4070f4594699bfcee254f43a9
SHA512 7c1a58e3f3899419a5c912579c437692efa988776502eee9bdeeaf3d27a19ed534d1617ef9f7e817ec8f1570ba51ca165ecbd0cce10bed66354d2e16d58c02d7
MD5 SHA1 SHA512

Score

10^/10

agenttesla keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol
smtp
Host
mail.sunflower-tech.com
Port
587
Username
[email protected]
Password
3625Bateau

Signatures

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

AgentTesla Payload 4 IoCs

resource	yara_rule
behavioral1/memory/1704-4-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla
behavioral1/memory/1704-5-0x000000000044782E-mapping.dmp	family_agenttesla
behavioral1/memory/1704-6-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla
behavioral1/memory/1704-7-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	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-1-5-21-1131729243-447456001-3632642222-1000\Software\Microsoft\Windows\CurrentVersion\Run\CpSnJ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\CpSnJ\\CpSnJ.exe"	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 240 set thread context of 1704	240	New Orders- POB001745.exe	28

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
1056	schtasks.exe

Modifies registry key 1 TTPs 1 IoCs

Modify Registry

T1112

pid	Process
1960	REG.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
240	New Orders- POB001745.exe
240	New Orders- POB001745.exe
240	New Orders- POB001745.exe
1704	RegSvcs.exe
1704	RegSvcs.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	240	New Orders- POB001745.exe
Token: SeDebugPrivilege	1704	RegSvcs.exe

Suspicious use of WriteProcessMemory 34 IoCs

description	pid	Process	procid_target
PID 240 wrote to memory of 1056	240	New Orders- POB001745.exe	24
PID 240 wrote to memory of 1056	240	New Orders- POB001745.exe	24
PID 240 wrote to memory of 1056	240	New Orders- POB001745.exe	24
PID 240 wrote to memory of 1056	240	New Orders- POB001745.exe	24
PID 240 wrote to memory of 1524	240	New Orders- POB001745.exe	26
PID 240 wrote to memory of 1524	240	New Orders- POB001745.exe	26
PID 240 wrote to memory of 1524	240	New Orders- POB001745.exe	26
PID 240 wrote to memory of 1524	240	New Orders- POB001745.exe	26
PID 240 wrote to memory of 1524	240	New Orders- POB001745.exe	26
PID 240 wrote to memory of 1524	240	New Orders- POB001745.exe	26
PID 240 wrote to memory of 1524	240	New Orders- POB001745.exe	26
PID 240 wrote to memory of 1500	240	New Orders- POB001745.exe	27
PID 240 wrote to memory of 1500	240	New Orders- POB001745.exe	27
PID 240 wrote to memory of 1500	240	New Orders- POB001745.exe	27
PID 240 wrote to memory of 1500	240	New Orders- POB001745.exe	27
PID 240 wrote to memory of 1500	240	New Orders- POB001745.exe	27
PID 240 wrote to memory of 1500	240	New Orders- POB001745.exe	27
PID 240 wrote to memory of 1500	240	New Orders- POB001745.exe	27
PID 240 wrote to memory of 1704	240	New Orders- POB001745.exe	28
PID 240 wrote to memory of 1704	240	New Orders- POB001745.exe	28
PID 240 wrote to memory of 1704	240	New Orders- POB001745.exe	28
PID 240 wrote to memory of 1704	240	New Orders- POB001745.exe	28
PID 240 wrote to memory of 1704	240	New Orders- POB001745.exe	28
PID 240 wrote to memory of 1704	240	New Orders- POB001745.exe	28
PID 240 wrote to memory of 1704	240	New Orders- POB001745.exe	28
PID 240 wrote to memory of 1704	240	New Orders- POB001745.exe	28
PID 240 wrote to memory of 1704	240	New Orders- POB001745.exe	28
PID 240 wrote to memory of 1704	240	New Orders- POB001745.exe	28
PID 240 wrote to memory of 1704	240	New Orders- POB001745.exe	28
PID 240 wrote to memory of 1704	240	New Orders- POB001745.exe	28
PID 1704 wrote to memory of 1960	1704	RegSvcs.exe	32
PID 1704 wrote to memory of 1960	1704	RegSvcs.exe	32
PID 1704 wrote to memory of 1960	1704	RegSvcs.exe	32
PID 1704 wrote to memory of 1960	1704	RegSvcs.exe	32

C:\Users\Admin\AppData\Local\Temp\New Orders- POB001745.exe
"C:\Users\Admin\AppData\Local\Temp\New Orders- POB001745.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:240
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\nLUlQQy" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA073.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:1056
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "{path}"
  2⤵
  PID:1524
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "{path}"
  2⤵
  PID:1500
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.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:1704
- - 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:1960

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Registry Run Keys / Startup Folder

T1060

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1704-4-0x0000000000400000-0x0000000000450000-memory.dmp

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memory/1704-6-0x0000000000400000-0x0000000000450000-memory.dmp

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memory/1704-7-0x0000000000400000-0x0000000000450000-memory.dmp

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