agenttesla | aca668c90184195a053af9c46b7c920733c941dc7986403f9a218bc17af4ecf5

General

Target

DHL TRACKING AWB.exe
Size

431KB
MD5

04ee28357218fa30d113db9c8d775079
SHA1

619d2ce20b1ae15f0fc0c6dd4d6b659271ed71e5
SHA256

7ae58eeb4ed1bd534122941fa3bb1c2971a982497566757b7a4b062c2756745d
SHA512

b7f9826b56e38990a4ca1522487533aeca42a3e205f1ced89d6e46c05b17f1383f8eaf5064bb8aebcb139878ffb97e2eebb3bdbef869bb3cc7e5899e24f140f3

Score

10^/10

agenttesla collection evasion keylogger persistence rezer0 spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.microtechlab.in
Port:
587
Username:
[email protected]
Password:
pune@123

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/1540-63-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/1540-64-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/1540-65-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/1540-66-0x000000000044CF5E-mapping.dmp	family_agenttesla
behavioral1/memory/1540-68-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/1540-70-0x0000000000400000-0x0000000000452000-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/2004-57-0x00000000006E0000-0x0000000000738000-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

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

RegSvcs.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	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-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows\CurrentVersion\Run\CpSnJ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\CpSnJ\\CpSnJ.exe"	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

DHL TRACKING AWB.exe

description pid process target process

PID 2004 set thread context of 1540 2004 DHL TRACKING AWB.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

1528 schtasks.exe
Modifies registry key 1 TTPs 1 IoCs

Modify Registry
T1112

Processes:

REG.exe

pid process

456 REG.exe
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

DHL TRACKING AWB.exeRegSvcs.exe

pid process

2004 DHL TRACKING AWB.exe
1540 RegSvcs.exe
1540 RegSvcs.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

DHL TRACKING AWB.exeRegSvcs.exe

description pid process

Token: SeDebugPrivilege 2004 DHL TRACKING AWB.exe
Token: SeDebugPrivilege 1540 RegSvcs.exe

description	pid	process	target process
PID 2004 set thread context of 1540	2004	DHL TRACKING AWB.exe	RegSvcs.exe

pid	process
1528	schtasks.exe

pid	process
456	REG.exe

pid	process
2004	DHL TRACKING AWB.exe
1540	RegSvcs.exe
1540	RegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	2004	DHL TRACKING AWB.exe
Token: SeDebugPrivilege	1540	RegSvcs.exe

Suspicious use of WriteProcessMemory 24 IoCs

Processes:

DHL TRACKING AWB.exeRegSvcs.exe

description	pid	process	target process
PID 2004 wrote to memory of 1528	2004	DHL TRACKING AWB.exe	schtasks.exe
PID 2004 wrote to memory of 1528	2004	DHL TRACKING AWB.exe	schtasks.exe
PID 2004 wrote to memory of 1528	2004	DHL TRACKING AWB.exe	schtasks.exe
PID 2004 wrote to memory of 1528	2004	DHL TRACKING AWB.exe	schtasks.exe
PID 2004 wrote to memory of 1540	2004	DHL TRACKING AWB.exe	RegSvcs.exe
PID 2004 wrote to memory of 1540	2004	DHL TRACKING AWB.exe	RegSvcs.exe
PID 2004 wrote to memory of 1540	2004	DHL TRACKING AWB.exe	RegSvcs.exe
PID 2004 wrote to memory of 1540	2004	DHL TRACKING AWB.exe	RegSvcs.exe
PID 2004 wrote to memory of 1540	2004	DHL TRACKING AWB.exe	RegSvcs.exe
PID 2004 wrote to memory of 1540	2004	DHL TRACKING AWB.exe	RegSvcs.exe
PID 2004 wrote to memory of 1540	2004	DHL TRACKING AWB.exe	RegSvcs.exe
PID 2004 wrote to memory of 1540	2004	DHL TRACKING AWB.exe	RegSvcs.exe
PID 2004 wrote to memory of 1540	2004	DHL TRACKING AWB.exe	RegSvcs.exe
PID 2004 wrote to memory of 1540	2004	DHL TRACKING AWB.exe	RegSvcs.exe
PID 2004 wrote to memory of 1540	2004	DHL TRACKING AWB.exe	RegSvcs.exe
PID 2004 wrote to memory of 1540	2004	DHL TRACKING AWB.exe	RegSvcs.exe
PID 1540 wrote to memory of 456	1540	RegSvcs.exe	REG.exe
PID 1540 wrote to memory of 456	1540	RegSvcs.exe	REG.exe
PID 1540 wrote to memory of 456	1540	RegSvcs.exe	REG.exe
PID 1540 wrote to memory of 456	1540	RegSvcs.exe	REG.exe
PID 1540 wrote to memory of 688	1540	RegSvcs.exe	netsh.exe
PID 1540 wrote to memory of 688	1540	RegSvcs.exe	netsh.exe
PID 1540 wrote to memory of 688	1540	RegSvcs.exe	netsh.exe
PID 1540 wrote to memory of 688	1540	RegSvcs.exe	netsh.exe

outlook_office_path 1 IoCs

Processes:

RegSvcs.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

outlook_win_path 1 IoCs

Processes:

RegSvcs.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\DHL TRACKING AWB.exe
"C:\Users\Admin\AppData\Local\Temp\DHL TRACKING AWB.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2004

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\BDujLJKyjL" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB0CA.tmp"
2⤵
- Creates scheduled task(s)
PID:1528

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"{path}"
2⤵
- Drops file in Drivers directory
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:1540

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:456

C:\Windows\SysWOW64\netsh.exe
"netsh" wlan show profile
3⤵
PID:688

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

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\tmpB0CA.tmp
Filesize
1KB

MD5
939f8a553e64405a62117078d260de18

SHA1
83a60be9593466b5140d2d773f42fdfe51d3c8b1

SHA256
5ceb78071449ffa0da8c694d3246bfb1816320644570d5a4f7c706a767662a05

SHA512
0fe2706851bb3d36156f4734902e5816f00165e916faa126fd7beaadb5202a9412567140813cacbf293f9e1c8b5b917914d859f41a3e9809c0f969f10f21b578

Download Submit
memory/456-72-0x0000000000000000-mapping.dmp

Download
memory/688-73-0x0000000000000000-mapping.dmp

Download
memory/1528-58-0x0000000000000000-mapping.dmp

Download
memory/1540-63-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1540-60-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1540-61-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1540-64-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1540-65-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1540-66-0x000000000044CF5E-mapping.dmp

Download
memory/1540-68-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1540-70-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/2004-57-0x00000000006E0000-0x0000000000738000-memory.dmp

Filesize
352KB

Download
memory/2004-54-0x0000000000CB0000-0x0000000000D22000-memory.dmp

Filesize
456KB

Download
memory/2004-56-0x0000000000480000-0x0000000000488000-memory.dmp

Filesize
32KB

Download
memory/2004-55-0x0000000075521000-0x0000000075523000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads