agenttesla | 53c98412c17c1a408f79f6a2ed8de3bf51c970eb6968e7e9b41bc38fa9e242ed

General

Target

AS4852.exe
Size

878KB
MD5

8e89d91f85cfff34a8d12ede04b1614c
SHA1

d3d52466a4ca5e6be70c023786be9c0f5da4f441
SHA256

53c98412c17c1a408f79f6a2ed8de3bf51c970eb6968e7e9b41bc38fa9e242ed
SHA512

d90783f712c5f012d920b9f95027edc898f8ef0b1e85665982929c082bf9eccab101b9c715f2c50e6a93cf2eac162b0e2520d12a2a3dbc0dd3b7e9ec7b7fda53

Score

10^/10

agenttesla keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: ftp
Host:
ftp://45.141.152.18/
Port:
21
Username:
farmlogs@vancrenanbroek.com
Password:
wTk4W1Uhkp5u

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/336-70-0x00000000004375BE-mapping.dmp	family_agenttesla
behavioral1/memory/336-69-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/336-71-0x0000000000400000-0x000000000043C000-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:

AS4852.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Windows\CurrentVersion\Run\hZpzJs = "C:\\Users\\Admin\\AppData\\Roaming\\hZpzJs\\hZpzJs.exe"	AS4852.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

AS4852.exe

description pid process target process

PID 1796 set thread context of 336 1796 AS4852.exe AS4852.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

1108 schtasks.exe
Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

AS4852.exeAS4852.exe

pid process

1796 AS4852.exe
1796 AS4852.exe
1796 AS4852.exe
336 AS4852.exe
336 AS4852.exe
Suspicious behavior: RenamesItself 1 IoCs

Processes:

AS4852.exe

pid process

336 AS4852.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

AS4852.exeAS4852.exe

description pid process

Token: SeDebugPrivilege 1796 AS4852.exe
Token: SeDebugPrivilege 336 AS4852.exe

description	pid	process	target process
PID 1796 set thread context of 336	1796	AS4852.exe	AS4852.exe

pid	process
1108	schtasks.exe

pid	process
1796	AS4852.exe
1796	AS4852.exe
1796	AS4852.exe
336	AS4852.exe
336	AS4852.exe

pid	process
336	AS4852.exe

description	pid	process
Token: SeDebugPrivilege	1796	AS4852.exe
Token: SeDebugPrivilege	336	AS4852.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

AS4852.exe

description	pid	process	target process
PID 1796 wrote to memory of 1108	1796	AS4852.exe	schtasks.exe
PID 1796 wrote to memory of 1108	1796	AS4852.exe	schtasks.exe
PID 1796 wrote to memory of 1108	1796	AS4852.exe	schtasks.exe
PID 1796 wrote to memory of 1108	1796	AS4852.exe	schtasks.exe
PID 1796 wrote to memory of 336	1796	AS4852.exe	AS4852.exe
PID 1796 wrote to memory of 336	1796	AS4852.exe	AS4852.exe
PID 1796 wrote to memory of 336	1796	AS4852.exe	AS4852.exe
PID 1796 wrote to memory of 336	1796	AS4852.exe	AS4852.exe
PID 1796 wrote to memory of 336	1796	AS4852.exe	AS4852.exe
PID 1796 wrote to memory of 336	1796	AS4852.exe	AS4852.exe
PID 1796 wrote to memory of 336	1796	AS4852.exe	AS4852.exe
PID 1796 wrote to memory of 336	1796	AS4852.exe	AS4852.exe
PID 1796 wrote to memory of 336	1796	AS4852.exe	AS4852.exe

C:\Users\Admin\AppData\Local\Temp\AS4852.exe
"C:\Users\Admin\AppData\Local\Temp\AS4852.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1796

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\OtVSjtvUtmrmx" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE7C0.tmp"
2⤵
- Creates scheduled task(s)
PID:1108

C:\Users\Admin\AppData\Local\Temp\AS4852.exe
"C:\Users\Admin\AppData\Local\Temp\AS4852.exe"
2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: RenamesItself
- Suspicious use of AdjustPrivilegeToken
PID:336

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\tmpE7C0.tmp
MD5
b2a9e7a7e2059c2b51ae7096f768a0dd

SHA1
f8457e6d82124bdebc553c6c69a71564ebdc58fe

SHA256
4e399eb8202961fe1ef34870e529710a22810fc426045a27985e519a2855f13c

SHA512
35cf582ada6fd17f36f6a476d8f3547296a055110eeed11340093eaf8b0ae436854e812ea3f4fff438cf5b407ce87cfc272f710dd0b33e65769148757de64b34

Download Submit
memory/336-70-0x00000000004375BE-mapping.dmp

Download
memory/336-69-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/336-71-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/336-73-0x00000000049C0000-0x00000000049C1000-memory.dmp

Filesize
4KB

Download
memory/1108-67-0x0000000000000000-mapping.dmp

Download
memory/1796-60-0x0000000001140000-0x0000000001141000-memory.dmp

Filesize
4KB

Download
memory/1796-62-0x0000000004E40000-0x0000000004E41000-memory.dmp

Filesize
4KB

Download
memory/1796-63-0x0000000000440000-0x0000000000449000-memory.dmp

Filesize
36KB

Download
memory/1796-64-0x000000007EF40000-0x000000007EF41000-memory.dmp

Filesize
4KB

Download
memory/1796-65-0x00000000052A0000-0x000000000531A000-memory.dmp

Filesize
488KB

Download
memory/1796-66-0x0000000000B40000-0x0000000000B8A000-memory.dmp

Filesize
296KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads