agenttesla | d301798719debd13825774fef34268bdb5635a518358e786cddd8aa9ca51e24d

Analysis

max time kernel
149s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
21-11-2024 13:12

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General

Target

Teklif.exe
Size

748KB
MD5

db4b551903a1f1bcafb5a352765d6d5d
SHA1

9420762fe9c678d890db7ca615a916a581a0b045
SHA256

744ad803081f6ad2d85f3c667c537c6bc3a47bf95c07f496315171790a1b05a2
SHA512

a68972f3cda539e56f4868cba879b849f1bec731fe465a6eb0cf26e63a911717ea2a839da0cb164603da4bd64bf03aab9006812082250bf4c8061e1bd2adb7d8
SSDEEP

12288:HVU3wtfRzxWW94FJEGDrDZL/YoheVXfanjRRVx8HFIUjgyo1ADKwwNHeLdyWYlt:HVUMpzxW84rEGDrtLwoEVMRVx8H7jgvn

Score

10^/10

agenttesla discovery execution keylogger spyware stealer trojan

Malware Config

Extracted

Credentials

Protocol: smtp
Host:
mail.apexrnun.com
Port:
587
Username:
[email protected]
Password:
CCu5Z?WuH+bS4hsz

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.apexrnun.com
Port:
587
Username:
[email protected]
Password:
CCu5Z?WuH+bS4hsz
Email To:
[email protected]

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla
Agenttesla family
agenttesla
Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
execution

PowerShell
T1059.001

Processes:

powershell.exe

pid process

4324 powershell.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

Processes:

Teklif.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation Teklif.exe
Reads WinSCP keys stored on the system 2 TTPs
Tries to access WinSCP stored sessions.
spyware stealer

Data from Local System
T1005

Credentials in Registry
T1552.002
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003
Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

19 ip-api.com
Suspicious use of SetThreadContext 1 IoCs

Processes:

Teklif.exe

description pid process target process

PID 3472 set thread context of 2812 3472 Teklif.exe Teklif.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
4324	powershell.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	Teklif.exe

flow	ioc
19	ip-api.com

description	pid	process	target process
PID 3472 set thread context of 2812	3472	Teklif.exe	Teklif.exe

System Location Discovery: System Language Discovery 1 TTPs 3 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

Processes:

Teklif.exeTeklif.exepowershell.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Teklif.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Teklif.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

Teklif.exepowershell.exe

pid process

2812 Teklif.exe
2812 Teklif.exe
4324 powershell.exe
4324 powershell.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Teklif.exepowershell.exe

description pid process

Token: SeDebugPrivilege 2812 Teklif.exe
Token: SeDebugPrivilege 4324 powershell.exe

pid	process
2812	Teklif.exe
2812	Teklif.exe
4324	powershell.exe
4324	powershell.exe

description	pid	process
Token: SeDebugPrivilege	2812	Teklif.exe
Token: SeDebugPrivilege	4324	powershell.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

Teklif.exe

description	pid	process	target process
PID 3472 wrote to memory of 4324	3472	Teklif.exe	powershell.exe
PID 3472 wrote to memory of 4324	3472	Teklif.exe	powershell.exe
PID 3472 wrote to memory of 4324	3472	Teklif.exe	powershell.exe
PID 3472 wrote to memory of 2812	3472	Teklif.exe	Teklif.exe
PID 3472 wrote to memory of 2812	3472	Teklif.exe	Teklif.exe
PID 3472 wrote to memory of 2812	3472	Teklif.exe	Teklif.exe
PID 3472 wrote to memory of 2812	3472	Teklif.exe	Teklif.exe
PID 3472 wrote to memory of 2812	3472	Teklif.exe	Teklif.exe
PID 3472 wrote to memory of 2812	3472	Teklif.exe	Teklif.exe
PID 3472 wrote to memory of 2812	3472	Teklif.exe	Teklif.exe
PID 3472 wrote to memory of 2812	3472	Teklif.exe	Teklif.exe

C:\Users\Admin\AppData\Local\Temp\Teklif.exe
"C:\Users\Admin\AppData\Local\Temp\Teklif.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3472
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\Teklif.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4324
- C:\Users\Admin\AppData\Local\Temp\Teklif.exe
  "C:\Users\Admin\AppData\Local\Temp\Teklif.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2812

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Credentials in Registry

T1552.002

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Teklif.exe.log

Filesize
1KB

MD5
8ec831f3e3a3f77e4a7b9cd32b48384c

SHA1
d83f09fd87c5bd86e045873c231c14836e76a05c

SHA256
7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

SHA512
26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_csc5n5hl.uaz.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/2812-11-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2812-53-0x0000000006850000-0x00000000068A0000-memory.dmp

Filesize
320KB

Download
memory/2812-62-0x00000000747D0000-0x0000000074F80000-memory.dmp

Filesize
7.7MB

Download
memory/2812-18-0x0000000005340000-0x00000000053A6000-memory.dmp

Filesize
408KB

Download
memory/2812-17-0x00000000747D0000-0x0000000074F80000-memory.dmp

Filesize
7.7MB

Download
memory/2812-63-0x00000000747D0000-0x0000000074F80000-memory.dmp

Filesize
7.7MB

Download
memory/2812-14-0x00000000747D0000-0x0000000074F80000-memory.dmp

Filesize
7.7MB

Download
memory/3472-4-0x00000000058E0000-0x00000000058EA000-memory.dmp

Filesize
40KB

Download
memory/3472-10-0x0000000006610000-0x0000000006696000-memory.dmp

Filesize
536KB

Download
memory/3472-9-0x00000000747D0000-0x0000000074F80000-memory.dmp

Filesize
7.7MB

Download
memory/3472-8-0x00000000747DE000-0x00000000747DF000-memory.dmp

Filesize
4KB

Download
memory/3472-15-0x00000000747D0000-0x0000000074F80000-memory.dmp

Filesize
7.7MB

Download
memory/3472-7-0x0000000005A90000-0x0000000005AA2000-memory.dmp

Filesize
72KB

Download
memory/3472-6-0x0000000005AD0000-0x0000000005B6C000-memory.dmp

Filesize
624KB

Download
memory/3472-0-0x00000000747DE000-0x00000000747DF000-memory.dmp

Filesize
4KB

Download
memory/3472-5-0x00000000747D0000-0x0000000074F80000-memory.dmp

Filesize
7.7MB

Download
memory/3472-3-0x0000000005840000-0x00000000058D2000-memory.dmp

Filesize
584KB

Download
memory/3472-2-0x0000000005F50000-0x00000000064F4000-memory.dmp

Filesize
5.6MB

Download
memory/3472-1-0x0000000000EC0000-0x0000000000F82000-memory.dmp

Filesize
776KB

Download
memory/4324-22-0x00000000060F0000-0x0000000006156000-memory.dmp

Filesize
408KB

Download
memory/4324-50-0x0000000007CC0000-0x0000000007CDA000-memory.dmp

Filesize
104KB

Download
memory/4324-21-0x00000000058C0000-0x00000000058E2000-memory.dmp

Filesize
136KB

Download
memory/4324-29-0x00000000063C0000-0x0000000006714000-memory.dmp

Filesize
3.3MB

Download
memory/4324-34-0x0000000006970000-0x000000000698E000-memory.dmp

Filesize
120KB

Download
memory/4324-35-0x0000000006EC0000-0x0000000006F0C000-memory.dmp

Filesize
304KB

Download
memory/4324-36-0x0000000007930000-0x0000000007962000-memory.dmp

Filesize
200KB

Download
memory/4324-37-0x0000000070430000-0x000000007047C000-memory.dmp

Filesize
304KB

Download
memory/4324-47-0x0000000006F40000-0x0000000006F5E000-memory.dmp

Filesize
120KB

Download
memory/4324-48-0x0000000007970000-0x0000000007A13000-memory.dmp

Filesize
652KB

Download
memory/4324-49-0x0000000008300000-0x000000000897A000-memory.dmp

Filesize
6.5MB

Download
memory/4324-23-0x00000000747D0000-0x0000000074F80000-memory.dmp

Filesize
7.7MB

Download
memory/4324-51-0x0000000007D30000-0x0000000007D3A000-memory.dmp

Filesize
40KB

Download
memory/4324-52-0x0000000007F40000-0x0000000007FD6000-memory.dmp

Filesize
600KB

Download
memory/4324-20-0x0000000005A50000-0x0000000006078000-memory.dmp

Filesize
6.2MB

Download
memory/4324-54-0x0000000007EC0000-0x0000000007ED1000-memory.dmp

Filesize
68KB

Download
memory/4324-55-0x0000000007EF0000-0x0000000007EFE000-memory.dmp

Filesize
56KB

Download
memory/4324-56-0x0000000007F00000-0x0000000007F14000-memory.dmp

Filesize
80KB

Download
memory/4324-57-0x0000000008000000-0x000000000801A000-memory.dmp

Filesize
104KB

Download
memory/4324-58-0x0000000007FE0000-0x0000000007FE8000-memory.dmp

Filesize
32KB

Download
memory/4324-61-0x00000000747D0000-0x0000000074F80000-memory.dmp

Filesize
7.7MB

Download
memory/4324-19-0x0000000003070000-0x00000000030A6000-memory.dmp

Filesize
216KB

Download
memory/4324-16-0x00000000747D0000-0x0000000074F80000-memory.dmp

Filesize
7.7MB

Download