agenttesla | 537ac001bfa8a1b6f2c7faab2e602493bae7472095af0aa616ddc5891f1d8145

Analysis

max time kernel
121s
max time network
145s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
24-06-2024 11:29

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General

Target

MT_08312_167027.exe
Size

130KB
MD5

8a82bc638ef7460d3d34eeb197826cb6
SHA1

94b8829259e596f14b6d734701203ece0e0b0cfe
SHA256

537ac001bfa8a1b6f2c7faab2e602493bae7472095af0aa616ddc5891f1d8145
SHA512

a005df3f4cc5ab148278fa46c48161c00bf40625d5416476cd512c8d7fb416b02a56a4bc9b7f82a7f434a8c61ee56676173abe66d6e4971bdbb32628b8b7edb8
SSDEEP

1536:xkzyh9vFEzeAJgZgqA/bnKGU6Lk8u2qHlllllllOdQlwEn+glllllllllllllllB:QynvCeugyqAznKEtYwiVxw5lM

Score

10^/10

agenttesla purelogstealer keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
162.254.34.31
Port:
587
Username:
[email protected]
Password:
ABwuRZS5Mjh5
Email To:
[email protected]

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla
PureLog Stealer
PureLog Stealer is an infostealer written in C#.
stealer purelogstealer
PureLog Stealer payload 1 IoCs

Processes:

resource yara_rule

behavioral1/memory/1924-1-0x0000000001290000-0x00000000012B6000-memory.dmp family_purelog_stealer
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 2 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

resource	yara_rule
behavioral1/memory/1924-1-0x0000000001290000-0x00000000012B6000-memory.dmp	family_purelog_stealer

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

MT_08312_167027.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Windows\CurrentVersion\Run\oiowhj = "C:\\Users\\Admin\\AppData\\Roaming\\oiowhj.exe"	MT_08312_167027.exe

Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

6 api.ipify.org
7 api.ipify.org
Suspicious use of SetThreadContext 1 IoCs

Processes:

MT_08312_167027.exe

description pid process target process

PID 1924 set thread context of 2640 1924 MT_08312_167027.exe MT_08312_167027.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Gathers network information 2 TTPs 2 IoCs
Uses commandline utility to view network configuration.

System Information Discovery
T1082

Command and Scripting Interpreter
T1059

Processes:

ipconfig.exeipconfig.exe

pid process

2156 ipconfig.exe
1708 ipconfig.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

MT_08312_167027.exe

pid process

2640 MT_08312_167027.exe
2640 MT_08312_167027.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

MT_08312_167027.exeMT_08312_167027.exe

description pid process

Token: SeDebugPrivilege 1924 MT_08312_167027.exe
Token: SeDebugPrivilege 1924 MT_08312_167027.exe
Token: SeDebugPrivilege 2640 MT_08312_167027.exe

flow	ioc
6	api.ipify.org
7	api.ipify.org

description	pid	process	target process
PID 1924 set thread context of 2640	1924	MT_08312_167027.exe	MT_08312_167027.exe

pid	process
2156	ipconfig.exe
1708	ipconfig.exe

pid	process
2640	MT_08312_167027.exe
2640	MT_08312_167027.exe

description	pid	process
Token: SeDebugPrivilege	1924	MT_08312_167027.exe
Token: SeDebugPrivilege	1924	MT_08312_167027.exe
Token: SeDebugPrivilege	2640	MT_08312_167027.exe

Suspicious use of WriteProcessMemory 25 IoCs

Processes:

MT_08312_167027.execmd.execmd.exe

description	pid	process	target process
PID 1924 wrote to memory of 2504	1924	MT_08312_167027.exe	cmd.exe
PID 1924 wrote to memory of 2504	1924	MT_08312_167027.exe	cmd.exe
PID 1924 wrote to memory of 2504	1924	MT_08312_167027.exe	cmd.exe
PID 1924 wrote to memory of 2504	1924	MT_08312_167027.exe	cmd.exe
PID 2504 wrote to memory of 2156	2504	cmd.exe	ipconfig.exe
PID 2504 wrote to memory of 2156	2504	cmd.exe	ipconfig.exe
PID 2504 wrote to memory of 2156	2504	cmd.exe	ipconfig.exe
PID 2504 wrote to memory of 2156	2504	cmd.exe	ipconfig.exe
PID 1924 wrote to memory of 2640	1924	MT_08312_167027.exe	MT_08312_167027.exe
PID 1924 wrote to memory of 2640	1924	MT_08312_167027.exe	MT_08312_167027.exe
PID 1924 wrote to memory of 2640	1924	MT_08312_167027.exe	MT_08312_167027.exe
PID 1924 wrote to memory of 2640	1924	MT_08312_167027.exe	MT_08312_167027.exe
PID 1924 wrote to memory of 2640	1924	MT_08312_167027.exe	MT_08312_167027.exe
PID 1924 wrote to memory of 2640	1924	MT_08312_167027.exe	MT_08312_167027.exe
PID 1924 wrote to memory of 2640	1924	MT_08312_167027.exe	MT_08312_167027.exe
PID 1924 wrote to memory of 2640	1924	MT_08312_167027.exe	MT_08312_167027.exe
PID 1924 wrote to memory of 2640	1924	MT_08312_167027.exe	MT_08312_167027.exe
PID 1924 wrote to memory of 480	1924	MT_08312_167027.exe	cmd.exe
PID 1924 wrote to memory of 480	1924	MT_08312_167027.exe	cmd.exe
PID 1924 wrote to memory of 480	1924	MT_08312_167027.exe	cmd.exe
PID 1924 wrote to memory of 480	1924	MT_08312_167027.exe	cmd.exe
PID 480 wrote to memory of 1708	480	cmd.exe	ipconfig.exe
PID 480 wrote to memory of 1708	480	cmd.exe	ipconfig.exe
PID 480 wrote to memory of 1708	480	cmd.exe	ipconfig.exe
PID 480 wrote to memory of 1708	480	cmd.exe	ipconfig.exe

C:\Users\Admin\AppData\Local\Temp\MT_08312_167027.exe
"C:\Users\Admin\AppData\Local\Temp\MT_08312_167027.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1924

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c ipconfig /release
2⤵
- Suspicious use of WriteProcessMemory
PID:2504

C:\Windows\SysWOW64\ipconfig.exe
ipconfig /release
3⤵
- Gathers network information
PID:2156

C:\Users\Admin\AppData\Local\Temp\MT_08312_167027.exe
"C:\Users\Admin\AppData\Local\Temp\MT_08312_167027.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2640

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c ipconfig /renew
2⤵
- Suspicious use of WriteProcessMemory
PID:480

C:\Windows\SysWOW64\ipconfig.exe
ipconfig /renew
3⤵
- Gathers network information
PID:1708

Network

MITRE ATT&CK Matrix ATT&CK v13

Replay Monitor

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Downloads

memory/1924-26-0x00000000066C0000-0x00000000068EA000-memory.dmp

Filesize
2.2MB

Download
memory/1924-4894-0x0000000074B6E000-0x0000000074B6F000-memory.dmp

Filesize
4KB

Download
memory/1924-2-0x0000000074B60000-0x000000007524E000-memory.dmp

Filesize
6.9MB

Download
memory/1924-3-0x00000000003C0000-0x00000000003C6000-memory.dmp

Filesize
24KB

Download
memory/1924-4-0x00000000066C0000-0x00000000068F0000-memory.dmp

Filesize
2.2MB

Download
memory/1924-5-0x00000000066C0000-0x00000000068EA000-memory.dmp

Filesize
2.2MB

Download
memory/1924-6-0x00000000066C0000-0x00000000068EA000-memory.dmp

Filesize
2.2MB

Download
memory/1924-28-0x00000000066C0000-0x00000000068EA000-memory.dmp

Filesize
2.2MB

Download
memory/1924-8-0x00000000066C0000-0x00000000068EA000-memory.dmp

Filesize
2.2MB

Download
memory/1924-12-0x00000000066C0000-0x00000000068EA000-memory.dmp

Filesize
2.2MB

Download
memory/1924-14-0x00000000066C0000-0x00000000068EA000-memory.dmp

Filesize
2.2MB

Download
memory/1924-20-0x00000000066C0000-0x00000000068EA000-memory.dmp

Filesize
2.2MB

Download
memory/1924-22-0x00000000066C0000-0x00000000068EA000-memory.dmp

Filesize
2.2MB

Download
memory/1924-34-0x00000000066C0000-0x00000000068EA000-memory.dmp

Filesize
2.2MB

Download
memory/1924-40-0x00000000066C0000-0x00000000068EA000-memory.dmp

Filesize
2.2MB

Download
memory/1924-46-0x00000000066C0000-0x00000000068EA000-memory.dmp

Filesize
2.2MB

Download
memory/1924-44-0x00000000066C0000-0x00000000068EA000-memory.dmp

Filesize
2.2MB

Download
memory/1924-42-0x00000000066C0000-0x00000000068EA000-memory.dmp

Filesize
2.2MB

Download
memory/1924-38-0x00000000066C0000-0x00000000068EA000-memory.dmp

Filesize
2.2MB

Download
memory/1924-36-0x00000000066C0000-0x00000000068EA000-memory.dmp

Filesize
2.2MB

Download
memory/1924-32-0x00000000066C0000-0x00000000068EA000-memory.dmp

Filesize
2.2MB

Download
memory/1924-30-0x00000000066C0000-0x00000000068EA000-memory.dmp

Filesize
2.2MB

Download
memory/1924-4912-0x0000000074B60000-0x000000007524E000-memory.dmp

Filesize
6.9MB

Download
memory/1924-1-0x0000000001290000-0x00000000012B6000-memory.dmp

Filesize
152KB

Download
memory/1924-48-0x00000000066C0000-0x00000000068EA000-memory.dmp

Filesize
2.2MB

Download
memory/1924-16-0x00000000066C0000-0x00000000068EA000-memory.dmp

Filesize
2.2MB

Download
memory/1924-10-0x00000000066C0000-0x00000000068EA000-memory.dmp

Filesize
2.2MB

Download
memory/1924-18-0x00000000066C0000-0x00000000068EA000-memory.dmp

Filesize
2.2MB

Download
memory/1924-50-0x00000000066C0000-0x00000000068EA000-memory.dmp

Filesize
2.2MB

Download
memory/1924-52-0x00000000066C0000-0x00000000068EA000-memory.dmp

Filesize
2.2MB

Download
memory/1924-54-0x00000000066C0000-0x00000000068EA000-memory.dmp

Filesize
2.2MB

Download
memory/1924-68-0x00000000066C0000-0x00000000068EA000-memory.dmp

Filesize
2.2MB

Download
memory/1924-66-0x00000000066C0000-0x00000000068EA000-memory.dmp

Filesize
2.2MB

Download
memory/1924-64-0x00000000066C0000-0x00000000068EA000-memory.dmp

Filesize
2.2MB

Download
memory/1924-4891-0x0000000074B60000-0x000000007524E000-memory.dmp

Filesize
6.9MB

Download
memory/1924-62-0x00000000066C0000-0x00000000068EA000-memory.dmp

Filesize
2.2MB

Download
memory/1924-60-0x00000000066C0000-0x00000000068EA000-memory.dmp

Filesize
2.2MB

Download
memory/1924-58-0x00000000066C0000-0x00000000068EA000-memory.dmp

Filesize
2.2MB

Download
memory/1924-4893-0x0000000004DC0000-0x0000000004E0C000-memory.dmp

Filesize
304KB

Download
memory/1924-4892-0x0000000005A70000-0x0000000005ADC000-memory.dmp

Filesize
432KB

Download
memory/1924-56-0x00000000066C0000-0x00000000068EA000-memory.dmp

Filesize
2.2MB

Download
memory/1924-24-0x00000000066C0000-0x00000000068EA000-memory.dmp

Filesize
2.2MB

Download
memory/1924-4895-0x0000000074B60000-0x000000007524E000-memory.dmp

Filesize
6.9MB

Download
memory/1924-4896-0x0000000074B60000-0x000000007524E000-memory.dmp

Filesize
6.9MB

Download
memory/1924-4897-0x0000000005620000-0x0000000005674000-memory.dmp

Filesize
336KB

Download
memory/1924-0-0x0000000074B6E000-0x0000000074B6F000-memory.dmp

Filesize
4KB

Download
memory/2640-4911-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download