agenttesla | a789bece61cc58a17f08c238e3bce39fd77fe2a1cb228af4fe17983341e5b7e9

General

Target

PI-2006009 TRUONG THINH.pdf.exe
Size

433KB
MD5

9bc66f36baedd02eb6b55e391d90b324
SHA1

aaa6786ed70237361fb28250da350181d0fd28fe
SHA256

4b1a13f1b1a0bff19df63d1ebf93a2c1c390896b77db3b724a2e5c03f6007d81
SHA512

027dbf3d56939ad0d7f4bae865863e9da23d3be4278b2e7a257b8c08b135390322b298c4bece43cda407c6eeec07c4f41a5d5b72bcee4018c65b6530aa3f462e

Score

10^/10

agenttesla evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.microtechlab.in
Port:
587
Username:
[email protected]
Password:
pune@123

Signatures

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

AgentTesla Payload 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/1756-137-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla

Disables Task Manager via registry modification
evasion
Drops file in Drivers directory 1 IoCs

Processes:

RegSvcs.exe

description ioc process

File opened for modification C:\Windows\system32\drivers\etc\hosts RegSvcs.exe

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

PI-2006009 TRUONG THINH.pdf.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Control Panel\International\Geo\Nation	PI-2006009 TRUONG THINH.pdf.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

RegSvcs.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\CpSnJ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\CpSnJ\\CpSnJ.exe"	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

PI-2006009 TRUONG THINH.pdf.exe

description pid process target process

PID 2912 set thread context of 1756 2912 PI-2006009 TRUONG THINH.pdf.exe RegSvcs.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

3336 1756 WerFault.exe RegSvcs.exe
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

2324 schtasks.exe
Modifies registry key 1 TTPs 1 IoCs

Modify Registry
T1112

Processes:

REG.exe

pid process

4608 REG.exe

description	pid	process	target process
PID 2912 set thread context of 1756	2912	PI-2006009 TRUONG THINH.pdf.exe	RegSvcs.exe

pid	pid_target	process	target process
3336	1756	WerFault.exe	RegSvcs.exe

pid	process
2324	schtasks.exe

pid	process
4608	REG.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

PI-2006009 TRUONG THINH.pdf.exeRegSvcs.exe

pid	process
2912	PI-2006009 TRUONG THINH.pdf.exe
2912	PI-2006009 TRUONG THINH.pdf.exe
2912	PI-2006009 TRUONG THINH.pdf.exe
2912	PI-2006009 TRUONG THINH.pdf.exe
1756	RegSvcs.exe
1756	RegSvcs.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

PI-2006009 TRUONG THINH.pdf.exeRegSvcs.exe

description pid process

Token: SeDebugPrivilege 2912 PI-2006009 TRUONG THINH.pdf.exe
Token: SeDebugPrivilege 1756 RegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	2912	PI-2006009 TRUONG THINH.pdf.exe
Token: SeDebugPrivilege	1756	RegSvcs.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

PI-2006009 TRUONG THINH.pdf.exeRegSvcs.exe

description	pid	process	target process
PID 2912 wrote to memory of 2324	2912	PI-2006009 TRUONG THINH.pdf.exe	schtasks.exe
PID 2912 wrote to memory of 2324	2912	PI-2006009 TRUONG THINH.pdf.exe	schtasks.exe
PID 2912 wrote to memory of 2324	2912	PI-2006009 TRUONG THINH.pdf.exe	schtasks.exe
PID 2912 wrote to memory of 1756	2912	PI-2006009 TRUONG THINH.pdf.exe	RegSvcs.exe
PID 2912 wrote to memory of 1756	2912	PI-2006009 TRUONG THINH.pdf.exe	RegSvcs.exe
PID 2912 wrote to memory of 1756	2912	PI-2006009 TRUONG THINH.pdf.exe	RegSvcs.exe
PID 2912 wrote to memory of 1756	2912	PI-2006009 TRUONG THINH.pdf.exe	RegSvcs.exe
PID 2912 wrote to memory of 1756	2912	PI-2006009 TRUONG THINH.pdf.exe	RegSvcs.exe
PID 2912 wrote to memory of 1756	2912	PI-2006009 TRUONG THINH.pdf.exe	RegSvcs.exe
PID 2912 wrote to memory of 1756	2912	PI-2006009 TRUONG THINH.pdf.exe	RegSvcs.exe
PID 2912 wrote to memory of 1756	2912	PI-2006009 TRUONG THINH.pdf.exe	RegSvcs.exe
PID 1756 wrote to memory of 4608	1756	RegSvcs.exe	REG.exe
PID 1756 wrote to memory of 4608	1756	RegSvcs.exe	REG.exe
PID 1756 wrote to memory of 4608	1756	RegSvcs.exe	REG.exe
PID 1756 wrote to memory of 3472	1756	RegSvcs.exe	netsh.exe
PID 1756 wrote to memory of 3472	1756	RegSvcs.exe	netsh.exe
PID 1756 wrote to memory of 3472	1756	RegSvcs.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\PI-2006009 TRUONG THINH.pdf.exe
"C:\Users\Admin\AppData\Local\Temp\PI-2006009 TRUONG THINH.pdf.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2912

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\myhqZugPIlg" /XML "C:\Users\Admin\AppData\Local\Temp\tmp86C4.tmp"
2⤵
- Creates scheduled task(s)
PID:2324

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"{path}"
2⤵
- Drops file in Drivers directory
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1756

C:\Windows\SysWOW64\REG.exe
REG add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableTaskMgr /t REG_DWORD /d 1 /f
3⤵
- Modifies registry key
PID:4608

C:\Windows\SysWOW64\netsh.exe
"netsh" wlan show profile
3⤵
PID:3472

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1756 -s 1540
3⤵
- Program crash
PID:3336

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 1756 -ip 1756
1⤵
PID:3184

Network

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

2

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp86C4.tmp
Filesize
1KB

MD5
a4c5ab2ae61b177584ad3d95e7beef34

SHA1
70019ec49635af871a977084a0d9d7ee5c3d3e88

SHA256
be3c0290c2906815fc3202dd48829c6bea93aef6411ba49b3fa86f2521acc46b

SHA512
3a4d74edb573b708cb6d495c3c9bd8040fc797ded421619dcc353b9b42b4d7da2204ec0a056360acb71ec7bf8fa7651a4e2eaf78a5afe2e2146c85fbb76b4134

Download Submit
memory/1756-136-0x0000000000000000-mapping.dmp

Download
memory/1756-137-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1756-138-0x0000000005630000-0x0000000005696000-memory.dmp

Filesize
408KB

Download
memory/1756-140-0x00000000061D0000-0x0000000006220000-memory.dmp

Filesize
320KB

Download
memory/2324-134-0x0000000000000000-mapping.dmp

Download
memory/2912-130-0x0000000000D00000-0x0000000000D72000-memory.dmp

Filesize
456KB

Download
memory/2912-131-0x0000000005AA0000-0x0000000005B3C000-memory.dmp

Filesize
624KB

Download
memory/2912-132-0x0000000005BE0000-0x0000000005C72000-memory.dmp

Filesize
584KB

Download
memory/2912-133-0x00000000069D0000-0x0000000006F74000-memory.dmp

Filesize
5.6MB

Download
memory/3472-141-0x0000000000000000-mapping.dmp

Download
memory/4608-139-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads