agenttesla | 77665ab30eba7a50ea5af12facabff730840919e9587a68d77d24cabece7ecf8

General

Target

shipping documents.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/3796-137-0x0000000000400000-0x0000000000452000-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:

shipping documents.PDF.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Control Panel\International\Geo\Nation	shipping documents.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-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\CpSnJ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\CpSnJ\\CpSnJ.exe"	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

shipping documents.PDF.exe

description pid process target process

PID 4660 set thread context of 3796 4660 shipping documents.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

3068 3796 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

1992 schtasks.exe
Modifies registry key 1 TTPs 1 IoCs

Modify Registry
T1112

Processes:

REG.exe

pid process

796 REG.exe

description	pid	process	target process
PID 4660 set thread context of 3796	4660	shipping documents.PDF.exe	RegSvcs.exe

pid	pid_target	process	target process
3068	3796	WerFault.exe	RegSvcs.exe

pid	process
1992	schtasks.exe

pid	process
796	REG.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

shipping documents.PDF.exeRegSvcs.exe

pid	process
4660	shipping documents.PDF.exe
4660	shipping documents.PDF.exe
4660	shipping documents.PDF.exe
4660	shipping documents.PDF.exe
3796	RegSvcs.exe
3796	RegSvcs.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

shipping documents.PDF.exeRegSvcs.exe

description pid process

Token: SeDebugPrivilege 4660 shipping documents.PDF.exe
Token: SeDebugPrivilege 3796 RegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	4660	shipping documents.PDF.exe
Token: SeDebugPrivilege	3796	RegSvcs.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

shipping documents.PDF.exeRegSvcs.exe

description	pid	process	target process
PID 4660 wrote to memory of 1992	4660	shipping documents.PDF.exe	schtasks.exe
PID 4660 wrote to memory of 1992	4660	shipping documents.PDF.exe	schtasks.exe
PID 4660 wrote to memory of 1992	4660	shipping documents.PDF.exe	schtasks.exe
PID 4660 wrote to memory of 3796	4660	shipping documents.PDF.exe	RegSvcs.exe
PID 4660 wrote to memory of 3796	4660	shipping documents.PDF.exe	RegSvcs.exe
PID 4660 wrote to memory of 3796	4660	shipping documents.PDF.exe	RegSvcs.exe
PID 4660 wrote to memory of 3796	4660	shipping documents.PDF.exe	RegSvcs.exe
PID 4660 wrote to memory of 3796	4660	shipping documents.PDF.exe	RegSvcs.exe
PID 4660 wrote to memory of 3796	4660	shipping documents.PDF.exe	RegSvcs.exe
PID 4660 wrote to memory of 3796	4660	shipping documents.PDF.exe	RegSvcs.exe
PID 4660 wrote to memory of 3796	4660	shipping documents.PDF.exe	RegSvcs.exe
PID 3796 wrote to memory of 796	3796	RegSvcs.exe	REG.exe
PID 3796 wrote to memory of 796	3796	RegSvcs.exe	REG.exe
PID 3796 wrote to memory of 796	3796	RegSvcs.exe	REG.exe
PID 3796 wrote to memory of 1464	3796	RegSvcs.exe	netsh.exe
PID 3796 wrote to memory of 1464	3796	RegSvcs.exe	netsh.exe
PID 3796 wrote to memory of 1464	3796	RegSvcs.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\shipping documents.PDF.exe
"C:\Users\Admin\AppData\Local\Temp\shipping documents.PDF.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4660

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\myhqZugPIlg" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA5E5.tmp"
2⤵
- Creates scheduled task(s)
PID:1992

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:3796

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:796

C:\Windows\SysWOW64\netsh.exe
"netsh" wlan show profile
3⤵
PID:1464

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3796 -s 1596
3⤵
- Program crash
PID:3068

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 360 -p 3796 -ip 3796
1⤵
PID:4392

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\tmpA5E5.tmp
Filesize
1KB

MD5
010e43c4ea040a7f5fde6ceaab084c8f

SHA1
d793ae32fad7115ade3c9fcfd503112e61d00a62

SHA256
eb922e77daed98c0e2f0a88649a81f13b4d81df0fbe3ddfb87747c2c78b7f51b

SHA512
1213f0066f13cc093ad27c71871e33cb54006c8f4db304bfc19a6abd78deabc85841e72b05d66ecb44d2ad34b5aade45330bc7c3bc363a08745eccc2878839ed

Download Submit
memory/796-139-0x0000000000000000-mapping.dmp

Download
memory/1464-141-0x0000000000000000-mapping.dmp

Download
memory/1992-134-0x0000000000000000-mapping.dmp

Download
memory/3796-136-0x0000000000000000-mapping.dmp

Download
memory/3796-137-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/3796-138-0x0000000005FB0000-0x0000000006016000-memory.dmp

Filesize
408KB

Download
memory/3796-140-0x0000000006C90000-0x0000000006CE0000-memory.dmp

Filesize
320KB

Download
memory/4660-130-0x0000000000290000-0x0000000000302000-memory.dmp

Filesize
456KB

Download
memory/4660-131-0x0000000004FD0000-0x000000000506C000-memory.dmp

Filesize
624KB

Download
memory/4660-132-0x0000000005110000-0x00000000051A2000-memory.dmp

Filesize
584KB

Download
memory/4660-133-0x0000000005F50000-0x00000000064F4000-memory.dmp

Filesize
5.6MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads