agenttesla | 3b99fe9fd560fbfa948a5c5e0ab90281a0a75eed2615a7378b0bc6bd82e33a8a

General

Target

PZS-172.exe
Size

413KB
MD5

38beb7c3620d7fa183fef226aa284725
SHA1

92048b0233855abd8098e3c049a981adc318e1f9
SHA256

3b99fe9fd560fbfa948a5c5e0ab90281a0a75eed2615a7378b0bc6bd82e33a8a
SHA512

1ce87934f9775012352f883d4f460ac45548803782c6929adf3e5c9648d3157e4916e37611b75c1423e24cca90efc83d004692e1118311b0d617a362ae681e03

Score

10^/10

agenttesla keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.mybutler.in
Port:
587
Username:
sundeep@mybutler.in
Password:
peed@2018

Signatures

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

AgentTesla Payload 4 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1892-4-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1892-5-0x00000000004470BE-mapping.dmp	family_agenttesla
behavioral1/memory/1892-6-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1892-7-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla

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-1-5-21-1131729243-447456001-3632642222-1000\Software\Microsoft\Windows\CurrentVersion\Run\CFMBUF = "C:\\Users\\Admin\\AppData\\Roaming\\CFMBUF\\CFMBUF.exe"	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

PZS-172.exe

description pid process target process

PID 1508 set thread context of 1892 1508 PZS-172.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
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

1848 schtasks.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

RegSvcs.exe

pid process

1892 RegSvcs.exe
1892 RegSvcs.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

RegSvcs.exe

description pid process

Token: SeDebugPrivilege 1892 RegSvcs.exe

description	pid	process	target process
PID 1508 set thread context of 1892	1508	PZS-172.exe	RegSvcs.exe

pid	process
1848	schtasks.exe

pid	process
1892	RegSvcs.exe
1892	RegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	1892	RegSvcs.exe

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

PZS-172.exe

description	pid	process	target process
PID 1508 wrote to memory of 1848	1508	PZS-172.exe	schtasks.exe
PID 1508 wrote to memory of 1848	1508	PZS-172.exe	schtasks.exe
PID 1508 wrote to memory of 1848	1508	PZS-172.exe	schtasks.exe
PID 1508 wrote to memory of 1848	1508	PZS-172.exe	schtasks.exe
PID 1508 wrote to memory of 1892	1508	PZS-172.exe	RegSvcs.exe
PID 1508 wrote to memory of 1892	1508	PZS-172.exe	RegSvcs.exe
PID 1508 wrote to memory of 1892	1508	PZS-172.exe	RegSvcs.exe
PID 1508 wrote to memory of 1892	1508	PZS-172.exe	RegSvcs.exe
PID 1508 wrote to memory of 1892	1508	PZS-172.exe	RegSvcs.exe
PID 1508 wrote to memory of 1892	1508	PZS-172.exe	RegSvcs.exe
PID 1508 wrote to memory of 1892	1508	PZS-172.exe	RegSvcs.exe
PID 1508 wrote to memory of 1892	1508	PZS-172.exe	RegSvcs.exe
PID 1508 wrote to memory of 1892	1508	PZS-172.exe	RegSvcs.exe
PID 1508 wrote to memory of 1892	1508	PZS-172.exe	RegSvcs.exe
PID 1508 wrote to memory of 1892	1508	PZS-172.exe	RegSvcs.exe
PID 1508 wrote to memory of 1892	1508	PZS-172.exe	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\PZS-172.exe
"C:\Users\Admin\AppData\Local\Temp\PZS-172.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1508

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\UBoYBvNaHZV" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8D8F.tmp"
2⤵
- Creates scheduled task(s)
PID:1848

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"{path}"
2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1892

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

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp8D8F.tmp
MD5
b405525ac09219701bc4ef92cb9b0dc3

SHA1
9e656854ced30f1d0c58a715f05b384132c0ec35

SHA256
96ee70ab65618d484ed43e3f9293e184f8a483739d0b906e2fee876cc6f20034

SHA512
1cc11f31df1b237c0dd1944be7de1aa82e6f27fcbc5a4ed77c9545ce3b4784927b37b4486c6ba444af46099f51f5f4ec2ced8e63b08b8022bf8150a2f578764b

Download Submit
memory/1508-1-0x0000000000000000-0x0000000000000000-disk.dmp

Download
memory/1848-2-0x0000000000000000-mapping.dmp

Download
memory/1892-4-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1892-5-0x00000000004470BE-mapping.dmp

Download
memory/1892-6-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1892-7-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads