agenttesla | 6960d585698d0353194d53afa7c6db5a68386fa8855cefefe9a2f4ce1292b5da

Analysis

max time kernel
59s
max time network
34s
platform
windows7_x64
resource
win7
submitted
03/08/2020, 13:54

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General

Target
PRODUCT_DETAILS.PDF.exe
Size 780KB
Sample200803-2lnd2ecfwe
SHA256 6960d585698d0353194d53afa7c6db5a68386fa8855cefefe9a2f4ce1292b5da
MD5 f73c222727f2ed1fdeb93c6dca328867
SHA1 57b89bf08a8603a20127b65cb74974873819835e
SHA512 bbe9f60cb411b3ab8b3438009a765db5c1717ee4d12d99d6de22c20ea6699b027b8609f092a7114db3323b1cc400c24b2def55fae7e8554d5564aeb3e0775711
MD5 SHA1 SHA512

Score

10^/10

agenttesla keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol
ftp
Host
ftp://ftp.skibokshotell.no/
Port
21
Username
[email protected]
Password
A?}GsQdPT.%#

Credentials

Protocol
ftp
Host
ftp://ftp.skibokshotell.no/
Port
21
Username
[email protected]
Password
A?}GsQdPT.%#

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/1480-13-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1480-14-0x000000000044727E-mapping.dmp	family_agenttesla
behavioral1/memory/1480-15-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1480-16-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla

Drops file in Drivers directory 1 IoCs

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

Executes dropped EXE 2 IoCs

pid	Process
756	Product.sfx.exe
1044	Product.exe

Loads dropped DLL 5 IoCs

pid	Process
892	cmd.exe
756	Product.sfx.exe
756	Product.sfx.exe
756	Product.sfx.exe
756	Product.sfx.exe

Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1044 set thread context of 1480	1044	Product.exe	28

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1480	vbc.exe
1480	vbc.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1480	vbc.exe

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
1044	Product.exe
1044	Product.exe
1044	Product.exe

Suspicious use of SendNotifyMessage 3 IoCs

pid	Process
1044	Product.exe
1044	Product.exe
1044	Product.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1480	vbc.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 1492 wrote to memory of 892	1492	PRODUCT_DETAILS.PDF.exe	24
PID 1492 wrote to memory of 892	1492	PRODUCT_DETAILS.PDF.exe	24
PID 1492 wrote to memory of 892	1492	PRODUCT_DETAILS.PDF.exe	24
PID 1492 wrote to memory of 892	1492	PRODUCT_DETAILS.PDF.exe	24
PID 1492 wrote to memory of 892	1492	PRODUCT_DETAILS.PDF.exe	24
PID 1492 wrote to memory of 892	1492	PRODUCT_DETAILS.PDF.exe	24
PID 1492 wrote to memory of 892	1492	PRODUCT_DETAILS.PDF.exe	24
PID 892 wrote to memory of 756	892	cmd.exe	26
PID 892 wrote to memory of 756	892	cmd.exe	26
PID 892 wrote to memory of 756	892	cmd.exe	26
PID 892 wrote to memory of 756	892	cmd.exe	26
PID 892 wrote to memory of 756	892	cmd.exe	26
PID 892 wrote to memory of 756	892	cmd.exe	26
PID 892 wrote to memory of 756	892	cmd.exe	26
PID 756 wrote to memory of 1044	756	Product.sfx.exe	27
PID 756 wrote to memory of 1044	756	Product.sfx.exe	27
PID 756 wrote to memory of 1044	756	Product.sfx.exe	27
PID 756 wrote to memory of 1044	756	Product.sfx.exe	27
PID 756 wrote to memory of 1044	756	Product.sfx.exe	27
PID 756 wrote to memory of 1044	756	Product.sfx.exe	27
PID 756 wrote to memory of 1044	756	Product.sfx.exe	27
PID 1044 wrote to memory of 1480	1044	Product.exe	28
PID 1044 wrote to memory of 1480	1044	Product.exe	28
PID 1044 wrote to memory of 1480	1044	Product.exe	28
PID 1044 wrote to memory of 1480	1044	Product.exe	28
PID 1044 wrote to memory of 1480	1044	Product.exe	28
PID 1044 wrote to memory of 1480	1044	Product.exe	28
PID 1044 wrote to memory of 1480	1044	Product.exe	28
PID 1044 wrote to memory of 1480	1044	Product.exe	28
PID 1044 wrote to memory of 1480	1044	Product.exe	28
PID 1044 wrote to memory of 1480	1044	Product.exe	28
PID 1044 wrote to memory of 1480	1044	Product.exe	28
PID 1044 wrote to memory of 1480	1044	Product.exe	28

C:\Users\Admin\AppData\Local\Temp\PRODUCT_DETAILS.PDF.exe
"C:\Users\Admin\AppData\Local\Temp\PRODUCT_DETAILS.PDF.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1492
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Roaming\Product.bat" "
  2⤵
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:892
- - C:\Users\Admin\AppData\Roaming\Product.sfx.exe
    Product.sfx.exe -pKGjTghQwedcvftghnUJMJOPLmkjuyhtgvbgFR -dC:\Users\Admin\AppData\Roaming
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious use of WriteProcessMemory
    PID:756
  - - C:\Users\Admin\AppData\Roaming\Product.exe
      "C:\Users\Admin\AppData\Roaming\Product.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      Suspicious use of FindShellTrayWindow
      Suspicious use of SendNotifyMessage
      Suspicious use of WriteProcessMemory
      PID:1044
    - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
        
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
        5⤵
        Drops file in Drivers directory
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        Suspicious use of SetWindowsHookEx
        
        PID:1480

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scripting

T1064

Persistence

Privilege Escalation

Defense Evasion

Scripting

T1064

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1480-13-0x0000000000400000-0x000000000044C000-memory.dmp

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memory/1480-15-0x0000000000400000-0x000000000044C000-memory.dmp

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memory/1480-16-0x0000000000400000-0x000000000044C000-memory.dmp

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