agenttesla | 667588e04952c38d760c87825e66ea40a0bd51fac5eac510177a64ff2f9bef63

General

Target

Shipmment Details.doc.exe
Size

446KB
MD5

6bdd9c15243bd5b8709b87b7ba10b3a9
SHA1

780f690b92f29296254f00b9f1958c2359991ad2
SHA256

2580575e95648d76aed0be387fbe6423ef72639b8aaa9e1ad84ebc5b74bcf7b5
SHA512

46a0f1f8a1c6d6cfbea8c287cd9f06fb44e987f8c452a2e5f99da852d871de1552a25eb7d79c794c817e16c7917d3e39383046173699c1fcc07f53dec0ec5cdd

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/4672-136-0x0000000000400000-0x0000000000450000-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 4088 set thread context of 4672 4088 Shipmment Details.doc.exe RegSvcs.exe
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

4924 4672 WerFault.exe RegSvcs.exe
Modifies registry key 1 TTPs 1 IoCs

Modify Registry
T1112

Processes:

REG.exe

pid process

4424 REG.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

RegSvcs.exe

pid process

4672 RegSvcs.exe
4672 RegSvcs.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

RegSvcs.exe

description pid process

Token: SeDebugPrivilege 4672 RegSvcs.exe

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

description	pid	process	target process
PID 4088 set thread context of 4672	4088	Shipmment Details.doc.exe	RegSvcs.exe

pid	pid_target	process	target process
4924	4672	WerFault.exe	RegSvcs.exe

pid	process
4424	REG.exe

pid	process
4672	RegSvcs.exe
4672	RegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	4672	RegSvcs.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

Shipmment Details.doc.exeRegSvcs.exe

description	pid	process	target process
PID 4088 wrote to memory of 4672	4088	Shipmment Details.doc.exe	RegSvcs.exe
PID 4088 wrote to memory of 4672	4088	Shipmment Details.doc.exe	RegSvcs.exe
PID 4088 wrote to memory of 4672	4088	Shipmment Details.doc.exe	RegSvcs.exe
PID 4088 wrote to memory of 4672	4088	Shipmment Details.doc.exe	RegSvcs.exe
PID 4088 wrote to memory of 4672	4088	Shipmment Details.doc.exe	RegSvcs.exe
PID 4088 wrote to memory of 4672	4088	Shipmment Details.doc.exe	RegSvcs.exe
PID 4088 wrote to memory of 4672	4088	Shipmment Details.doc.exe	RegSvcs.exe
PID 4088 wrote to memory of 4672	4088	Shipmment Details.doc.exe	RegSvcs.exe
PID 4672 wrote to memory of 4424	4672	RegSvcs.exe	REG.exe
PID 4672 wrote to memory of 4424	4672	RegSvcs.exe	REG.exe
PID 4672 wrote to memory of 4424	4672	RegSvcs.exe	REG.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:4088

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:4672

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:4424

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4672 -s 1544
3⤵
- Program crash
PID:4924

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 4672 -ip 4672
1⤵
PID:1152

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/4088-130-0x0000000000EC0000-0x0000000000F36000-memory.dmp

Filesize
472KB

Download
memory/4088-131-0x000000000A360000-0x000000000A904000-memory.dmp

Filesize
5.6MB

Download
memory/4088-132-0x0000000005AD0000-0x0000000005B62000-memory.dmp

Filesize
584KB

Download
memory/4088-133-0x00000000058D0000-0x00000000058DA000-memory.dmp

Filesize
40KB

Download
memory/4088-134-0x000000000AA90000-0x000000000AB2C000-memory.dmp

Filesize
624KB

Download
memory/4424-138-0x0000000000000000-mapping.dmp

Download
memory/4672-135-0x0000000000000000-mapping.dmp

Download
memory/4672-136-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/4672-137-0x0000000006030000-0x0000000006096000-memory.dmp

Filesize
408KB

Download
memory/4672-139-0x0000000006F00000-0x0000000006F50000-memory.dmp

Filesize
320KB

Download

Analysis

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