agenttesla | 677af94bd1064fd89adf4b87a0e0159b8e448fb92265f30b6a09b60617df5b02

General

Target

NEFT Payment Receipt.exe
Size

522KB
MD5

db56d94b3df3bead6e010931aa0d379d
SHA1

9a52da05adad71adf8ce20cf12110f8ed45dc55f
SHA256

590d32924480f6d5306978feb7fea108eebfea73a42f50f7e06ddd7dd6db9269
SHA512

4ffdc06cb0a93d7893c15a9422185955db29b0eea480cfde5a134e7c51568a67d648896da01b4cf2d651bfc7c393a6506a61d070cabc096e31dfb81da4433cf9

Score

10^/10

agenttesla evasion keylogger persistence rezer0 spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.pro-powersourcing.com
Port:
587
Username:
[email protected]
Password:
china1977

Signatures

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

AgentTesla Payload 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1208-63-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/1208-64-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/1208-65-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/1208-66-0x000000000044CE0E-mapping.dmp	family_agenttesla
behavioral1/memory/1208-68-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/1208-70-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla

ReZer0 packer 1 IoCs

Detects ReZer0, a packer with multiple versions used in various campaigns.

rezer0

Processes:

resource	yara_rule
behavioral1/memory/1704-57-0x00000000042E0000-0x0000000004338000-memory.dmp	rezer0

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

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-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Windows\CurrentVersion\Run\CpSnJ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\CpSnJ\\CpSnJ.exe"	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

NEFT Payment Receipt.exe

description pid process target process

PID 1704 set thread context of 1208 1704 NEFT Payment Receipt.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

2024 schtasks.exe
Modifies registry key 1 TTPs 1 IoCs

Modify Registry
T1112

Processes:

REG.exe

pid process

1920 REG.exe
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

NEFT Payment Receipt.exeRegSvcs.exe

pid process

1704 NEFT Payment Receipt.exe
1208 RegSvcs.exe
1208 RegSvcs.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

NEFT Payment Receipt.exeRegSvcs.exe

description pid process

Token: SeDebugPrivilege 1704 NEFT Payment Receipt.exe
Token: SeDebugPrivilege 1208 RegSvcs.exe

description	pid	process	target process
PID 1704 set thread context of 1208	1704	NEFT Payment Receipt.exe	RegSvcs.exe

pid	process
2024	schtasks.exe

pid	process
1920	REG.exe

pid	process
1704	NEFT Payment Receipt.exe
1208	RegSvcs.exe
1208	RegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	1704	NEFT Payment Receipt.exe
Token: SeDebugPrivilege	1208	RegSvcs.exe

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

NEFT Payment Receipt.exeRegSvcs.exe

description	pid	process	target process
PID 1704 wrote to memory of 2024	1704	NEFT Payment Receipt.exe	schtasks.exe
PID 1704 wrote to memory of 2024	1704	NEFT Payment Receipt.exe	schtasks.exe
PID 1704 wrote to memory of 2024	1704	NEFT Payment Receipt.exe	schtasks.exe
PID 1704 wrote to memory of 2024	1704	NEFT Payment Receipt.exe	schtasks.exe
PID 1704 wrote to memory of 1208	1704	NEFT Payment Receipt.exe	RegSvcs.exe
PID 1704 wrote to memory of 1208	1704	NEFT Payment Receipt.exe	RegSvcs.exe
PID 1704 wrote to memory of 1208	1704	NEFT Payment Receipt.exe	RegSvcs.exe
PID 1704 wrote to memory of 1208	1704	NEFT Payment Receipt.exe	RegSvcs.exe
PID 1704 wrote to memory of 1208	1704	NEFT Payment Receipt.exe	RegSvcs.exe
PID 1704 wrote to memory of 1208	1704	NEFT Payment Receipt.exe	RegSvcs.exe
PID 1704 wrote to memory of 1208	1704	NEFT Payment Receipt.exe	RegSvcs.exe
PID 1704 wrote to memory of 1208	1704	NEFT Payment Receipt.exe	RegSvcs.exe
PID 1704 wrote to memory of 1208	1704	NEFT Payment Receipt.exe	RegSvcs.exe
PID 1704 wrote to memory of 1208	1704	NEFT Payment Receipt.exe	RegSvcs.exe
PID 1704 wrote to memory of 1208	1704	NEFT Payment Receipt.exe	RegSvcs.exe
PID 1704 wrote to memory of 1208	1704	NEFT Payment Receipt.exe	RegSvcs.exe
PID 1208 wrote to memory of 1920	1208	RegSvcs.exe	REG.exe
PID 1208 wrote to memory of 1920	1208	RegSvcs.exe	REG.exe
PID 1208 wrote to memory of 1920	1208	RegSvcs.exe	REG.exe
PID 1208 wrote to memory of 1920	1208	RegSvcs.exe	REG.exe

C:\Users\Admin\AppData\Local\Temp\NEFT Payment Receipt.exe
"C:\Users\Admin\AppData\Local\Temp\NEFT Payment Receipt.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1704

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\mXiktUDlm" /XML "C:\Users\Admin\AppData\Local\Temp\tmp71D7.tmp"
2⤵
- Creates scheduled task(s)
PID:2024

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:1208

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:1920

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

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp71D7.tmp
Filesize
1KB

MD5
c47c514d17bd06dec7c6423d12818101

SHA1
9634b808be2ae977b77833f1f2cb0ad43e4786fc

SHA256
3ff3fca1c957baab1be2c7ee0a1bbf35c5f32cb4acf01eaf7846241f0393e0b6

SHA512
bf8973ea12e56f1db2b1338643c102085621beb72f52eacd614083629aaeb8327f1cc418fd919641c1730a5f9e2dd532be9ccbd1d273f7a0ea3680457686dfa3

Download Submit
memory/1208-64-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1208-66-0x000000000044CE0E-mapping.dmp

Download
memory/1208-70-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1208-68-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1208-65-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1208-60-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1208-61-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1208-63-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1704-54-0x0000000000170000-0x00000000001FA000-memory.dmp

Filesize
552KB

Download
memory/1704-55-0x00000000755B1000-0x00000000755B3000-memory.dmp

Filesize
8KB

Download
memory/1704-56-0x0000000000430000-0x0000000000440000-memory.dmp

Filesize
64KB

Download
memory/1704-57-0x00000000042E0000-0x0000000004338000-memory.dmp

Filesize
352KB

Download
memory/1920-72-0x0000000000000000-mapping.dmp

Download
memory/2024-58-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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