agenttesla | 256487f56f6ad99c043971e91572ccbe41f80b2f3e4a784323b483968c02d203

General

Target

Shipmment Details.doc..exe
Size

483KB
MD5

ca3d8f1c6b86d36e95f6c77f56586c25
SHA1

e06640e1c6b22441a87b60bdb93e8af246c3e3be
SHA256

e386fd9c2ec4caa4a12389d0d1c20e870a0955eeb3ab5c72e7c1eab18ca2efb1
SHA512

2afcd73f31a03ef87362d8187d9ab858556e82050fc818f35df788f2091288b295815936e83359524b31bb7cccc6f39768473dc5459d4e3d04725e7fc776a47b

Score

10^/10

agenttesla evasion keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.hotel71.com.bd
Port:
587
Username:
[email protected]
Password:
9+^va&phP1v9

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/4224-136-0x0000000000400000-0x0000000000450000-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
Suspicious use of SetThreadContext 1 IoCs

Processes:

Shipmment Details.doc..exe

description pid process target process

PID 3000 set thread context of 4224 3000 Shipmment Details.doc..exe RegSvcs.exe
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

5052 4224 WerFault.exe RegSvcs.exe
Modifies registry key 1 TTPs 1 IoCs

Modify Registry
T1112

Processes:

REG.exe

pid process

5100 REG.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

RegSvcs.exe

pid process

4224 RegSvcs.exe
4224 RegSvcs.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

RegSvcs.exe

description pid process

Token: SeDebugPrivilege 4224 RegSvcs.exe

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

description	pid	process	target process
PID 3000 set thread context of 4224	3000	Shipmment Details.doc..exe	RegSvcs.exe

pid	pid_target	process	target process
5052	4224	WerFault.exe	RegSvcs.exe

pid	process
5100	REG.exe

pid	process
4224	RegSvcs.exe
4224	RegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	4224	RegSvcs.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

Shipmment Details.doc..exeRegSvcs.exe

description	pid	process	target process
PID 3000 wrote to memory of 4224	3000	Shipmment Details.doc..exe	RegSvcs.exe
PID 3000 wrote to memory of 4224	3000	Shipmment Details.doc..exe	RegSvcs.exe
PID 3000 wrote to memory of 4224	3000	Shipmment Details.doc..exe	RegSvcs.exe
PID 3000 wrote to memory of 4224	3000	Shipmment Details.doc..exe	RegSvcs.exe
PID 3000 wrote to memory of 4224	3000	Shipmment Details.doc..exe	RegSvcs.exe
PID 3000 wrote to memory of 4224	3000	Shipmment Details.doc..exe	RegSvcs.exe
PID 3000 wrote to memory of 4224	3000	Shipmment Details.doc..exe	RegSvcs.exe
PID 3000 wrote to memory of 4224	3000	Shipmment Details.doc..exe	RegSvcs.exe
PID 4224 wrote to memory of 5100	4224	RegSvcs.exe	REG.exe
PID 4224 wrote to memory of 5100	4224	RegSvcs.exe	REG.exe
PID 4224 wrote to memory of 5100	4224	RegSvcs.exe	REG.exe
PID 4224 wrote to memory of 212	4224	RegSvcs.exe	netsh.exe
PID 4224 wrote to memory of 212	4224	RegSvcs.exe	netsh.exe
PID 4224 wrote to memory of 212	4224	RegSvcs.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\Shipmment Details.doc..exe
"C:\Users\Admin\AppData\Local\Temp\Shipmment Details.doc..exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3000

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"{path}"
2⤵
- Drops file in Drivers directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4224

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:5100

C:\Windows\SysWOW64\netsh.exe
"netsh" wlan show profile
3⤵
PID:212

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4224 -s 1672
3⤵
- Program crash
PID:5052

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4224 -ip 4224
1⤵
PID:1828

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/212-140-0x0000000000000000-mapping.dmp

Download
memory/3000-130-0x00000000000A0000-0x000000000011E000-memory.dmp

Filesize
504KB

Download
memory/3000-131-0x0000000004F70000-0x0000000005514000-memory.dmp

Filesize
5.6MB

Download
memory/3000-132-0x00000000049C0000-0x0000000004A52000-memory.dmp

Filesize
584KB

Download
memory/3000-133-0x0000000004970000-0x000000000497A000-memory.dmp

Filesize
40KB

Download
memory/3000-134-0x0000000008340000-0x00000000083DC000-memory.dmp

Filesize
624KB

Download
memory/4224-135-0x0000000000000000-mapping.dmp

Download
memory/4224-136-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/4224-137-0x0000000005C90000-0x0000000005CF6000-memory.dmp

Filesize
408KB

Download
memory/4224-139-0x00000000070E0000-0x0000000007130000-memory.dmp

Filesize
320KB

Download
memory/5100-138-0x0000000000000000-mapping.dmp

Download

Analysis

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