agenttesla | c3885d765316e76d38f9a4635d49a66818f8def0cb845609721b4f9c4e3ec829

General

Target

JaffaCakes118_d191a5f798830359f259ba7d2d21a010.ps1
Size

759KB
MD5

d191a5f798830359f259ba7d2d21a010
SHA1

b5d4e728cae2a269cc4a0e37ead009a7db92f008
SHA256

c3885d765316e76d38f9a4635d49a66818f8def0cb845609721b4f9c4e3ec829
SHA512

1cfe15d7985df1925749cf52516e8c1d1453f471fe96bafec10fe98fa06e1c9087de995d03dc656f5ca12014f6c3ae4dfc76a325459059c4a5f95f87b05bebe4
SSDEEP

1536:NcGaFcSm8djmBTdDaalZfN6OUapCUlmpVs7ab/vDMuBZubpvG+K3LTbPdTfnX4mA:Z

Score

10^/10

agenttesla collection credential_access discovery execution keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

C2

http://103.125.190.248/j/p11l/mawa/0b5eace2c983ebeba55b.php

Signatures

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

AgentTesla payload 1 IoCs

resource	yara_rule
behavioral2/memory/2060-14-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla

Drops file in Drivers directory 1 IoCs

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

Unsecured Credentials: Credentials In Files 1 TTPs
Steal credentials from unsecured files.
credential_access stealer

Credentials In Files
T1552.001

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	jsc.exe
Key opened	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	jsc.exe
Key opened	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	jsc.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3660 set thread context of 2060	3660	powershell.exe	84

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
3660	powershell.exe

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	jsc.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3660	powershell.exe
3660	powershell.exe
2060	jsc.exe
2060	jsc.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3660	powershell.exe
Token: SeDebugPrivilege	2060	jsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2060	jsc.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 3660 wrote to memory of 2060	3660	powershell.exe	84
PID 3660 wrote to memory of 2060	3660	powershell.exe	84
PID 3660 wrote to memory of 2060	3660	powershell.exe	84
PID 3660 wrote to memory of 2060	3660	powershell.exe	84
PID 3660 wrote to memory of 2060	3660	powershell.exe	84
PID 3660 wrote to memory of 2060	3660	powershell.exe	84
PID 3660 wrote to memory of 2060	3660	powershell.exe	84
PID 3660 wrote to memory of 2060	3660	powershell.exe	84

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	jsc.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	jsc.exe

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d191a5f798830359f259ba7d2d21a010.ps1
1⤵
- Suspicious use of SetThreadContext
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3660
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe"
  2⤵
  - Drops file in Drivers directory
  - Accesses Microsoft Outlook profiles
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - outlook_office_path
  - outlook_win_path
  PID:2060

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Email Collection

1

T1114

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_3dix2ohs.vzt.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/2060-25-0x00000000745BE000-0x00000000745BF000-memory.dmp

Filesize
4KB

Download
memory/2060-29-0x0000000001120000-0x000000000112A000-memory.dmp

Filesize
40KB

Download
memory/2060-19-0x0000000005750000-0x0000000005CF4000-memory.dmp

Filesize
5.6MB

Download
memory/2060-30-0x00000000745B0000-0x0000000074D60000-memory.dmp

Filesize
7.7MB

Download
memory/2060-20-0x0000000005240000-0x00000000052D2000-memory.dmp

Filesize
584KB

Download
memory/2060-14-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2060-28-0x0000000006670000-0x00000000066C0000-memory.dmp

Filesize
320KB

Download
memory/2060-21-0x0000000005580000-0x000000000561C000-memory.dmp

Filesize
624KB

Download
memory/2060-31-0x00000000745B0000-0x0000000074D60000-memory.dmp

Filesize
7.7MB

Download
memory/2060-26-0x00000000745B0000-0x0000000074D60000-memory.dmp

Filesize
7.7MB

Download
memory/2060-18-0x00000000745BE000-0x00000000745BF000-memory.dmp

Filesize
4KB

Download
memory/2060-22-0x00000000745B0000-0x0000000074D60000-memory.dmp

Filesize
7.7MB

Download
memory/2060-23-0x0000000005720000-0x0000000005738000-memory.dmp

Filesize
96KB

Download
memory/2060-24-0x0000000006300000-0x0000000006366000-memory.dmp

Filesize
408KB

Download
memory/3660-0-0x00007FFD4F7E3000-0x00007FFD4F7E5000-memory.dmp

Filesize
8KB

Download
memory/3660-10-0x000001B2C6430000-0x000001B2C6452000-memory.dmp

Filesize
136KB

Download
memory/3660-17-0x00007FFD4F7E0000-0x00007FFD502A1000-memory.dmp

Filesize
10.8MB

Download
memory/3660-13-0x000001B2ADE30000-0x000001B2ADE46000-memory.dmp

Filesize
88KB

Download
memory/3660-12-0x00007FFD4F7E0000-0x00007FFD502A1000-memory.dmp

Filesize
10.8MB

Download
memory/3660-11-0x00007FFD4F7E0000-0x00007FFD502A1000-memory.dmp

Filesize
10.8MB

Download

Analysis

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