agenttesla | c57c8d4d2e724683791c90f26d4499886ab0498688740b5433e1c4a36680564e

General

Target

bank account.exe
Size

780KB
MD5

a5640ac4a8b294df8ced6dfd0ca544f3
SHA1

94fc2bc720e88f5f1bcab268fd441c3f640d63c3
SHA256

c57c8d4d2e724683791c90f26d4499886ab0498688740b5433e1c4a36680564e
SHA512

c49a3f261ee1832bc41d887bf0b195ea707a4eb4fd15f46bd3ec55329169ae97d1953338e736532219b483b2954f76545544eb1e7fc632ea78c48b31bb012fbd

Score

10^/10

agenttesla keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
Mail.jingtai.com.vn
Port:
587
Username:
[email protected]
Password:
truongtuyen2209

Signatures

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

AgentTesla Payload 3 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1828-68-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/1828-69-0x000000000043768E-mapping.dmp	family_agenttesla
behavioral1/memory/1828-70-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla

Drops file in Drivers directory 1 IoCs

Processes:

bank account.exe

description ioc process

File opened for modification C:\Windows\system32\drivers\etc\hosts bank account.exe
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
T1081
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
T1081
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
T1081

description	ioc	process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	bank account.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

bank account.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Windows\CurrentVersion\Run\hgvQCmQ = "C:\\Users\\Admin\\AppData\\Roaming\\hgvQCmQ\\hgvQCmQ.exe"	bank account.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

bank account.exe

description pid process target process

PID 1940 set thread context of 1828 1940 bank account.exe bank account.exe
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

Processes:

schtasks.exe

pid process

968 schtasks.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

bank account.exe

pid process

1828 bank account.exe
1828 bank account.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

bank account.exe

description pid process

Token: SeDebugPrivilege 1828 bank account.exe

description	pid	process	target process
PID 1940 set thread context of 1828	1940	bank account.exe	bank account.exe

pid	process
968	schtasks.exe

pid	process
1828	bank account.exe
1828	bank account.exe

description	pid	process
Token: SeDebugPrivilege	1828	bank account.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

bank account.exe

description	pid	process	target process
PID 1940 wrote to memory of 968	1940	bank account.exe	schtasks.exe
PID 1940 wrote to memory of 968	1940	bank account.exe	schtasks.exe
PID 1940 wrote to memory of 968	1940	bank account.exe	schtasks.exe
PID 1940 wrote to memory of 968	1940	bank account.exe	schtasks.exe
PID 1940 wrote to memory of 1828	1940	bank account.exe	bank account.exe
PID 1940 wrote to memory of 1828	1940	bank account.exe	bank account.exe
PID 1940 wrote to memory of 1828	1940	bank account.exe	bank account.exe
PID 1940 wrote to memory of 1828	1940	bank account.exe	bank account.exe
PID 1940 wrote to memory of 1828	1940	bank account.exe	bank account.exe
PID 1940 wrote to memory of 1828	1940	bank account.exe	bank account.exe
PID 1940 wrote to memory of 1828	1940	bank account.exe	bank account.exe
PID 1940 wrote to memory of 1828	1940	bank account.exe	bank account.exe
PID 1940 wrote to memory of 1828	1940	bank account.exe	bank account.exe

C:\Users\Admin\AppData\Local\Temp\bank account.exe
"C:\Users\Admin\AppData\Local\Temp\bank account.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1940

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\IVNmTSJGrzid" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8891.tmp"
2⤵
- Creates scheduled task(s)
PID:968

C:\Users\Admin\AppData\Local\Temp\bank account.exe
"{path}"
2⤵
- Drops file in Drivers directory
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1828

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Registry Run Keys / Startup Folder

1

T1060

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Modify Registry

1

T1112

Credential Access

Credentials in Files

3

T1081

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

3

T1005

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp8891.tmp
MD5
ad49c0f6b59b5af0efb54cf12356bf65

SHA1
22d4d2603a149aaa4f73c901b2f35a203c95c15d

SHA256
70543a59e39b3a527055cfef1448a638d67c1060d63f40e56f2f9b23263717c3

SHA512
a5a01644ca55a200f8a16556d5209b97b6ddf662ec5d485333d265ed864757e1831a0bb94a68c98a0daf652c6345ff3fa7da487af2237d8ba48c1920a4557830

Download Submit
memory/968-66-0x0000000000000000-mapping.dmp

Download
memory/1828-68-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1828-69-0x000000000043768E-mapping.dmp

Download
memory/1828-70-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1828-72-0x0000000004DA0000-0x0000000004DA1000-memory.dmp

Filesize
4KB

Download
memory/1828-73-0x0000000004DA1000-0x0000000004DA2000-memory.dmp

Filesize
4KB

Download
memory/1940-60-0x0000000000B60000-0x0000000000B61000-memory.dmp

Filesize
4KB

Download
memory/1940-62-0x0000000004460000-0x0000000004461000-memory.dmp

Filesize
4KB

Download
memory/1940-63-0x00000000003F0000-0x00000000003F2000-memory.dmp

Filesize
8KB

Download
memory/1940-64-0x0000000005040000-0x00000000050BD000-memory.dmp

Filesize
500KB

Download
memory/1940-65-0x0000000002030000-0x0000000002068000-memory.dmp

Filesize
224KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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