agenttesla | d05671abb7e430ab9567881b11ff4dbfab4d9675e5ecb8128608d1d147b5c073

General

Target

ORDER.docs.exe
Size

458KB
MD5

0a3333ff7bcb5dd86f29a640b400e2e8
SHA1

49bb20e7fe343cd4ab8f5048b97277230082004f
SHA256

9a1c9a14cefe34731b24b163dced4eb630136df8eeee1fc69babc26db5b5eb35
SHA512

9c7d1e2ec923e722222c446151d9240a576e1bb70174a0960c06fff81657af685288880ad78713cf47cff742adbd8fd36fc7a9ba825d1fc7b8a9dd2aba79e485

Score

10^/10

agenttesla collection 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/2024-63-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/2024-64-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/2024-65-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/2024-66-0x000000000044CE0E-mapping.dmp	family_agenttesla
behavioral1/memory/2024-68-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/2024-70-0x0000000000400000-0x0000000000452000-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/1336-57-0x0000000004430000-0x0000000004488000-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:

ORDER.docs.exe

description pid process target process

PID 1336 set thread context of 2024 1336 ORDER.docs.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

2000 schtasks.exe
Modifies registry key 1 TTPs 1 IoCs

Modify Registry
T1112

Processes:

REG.exe

pid process

2008 REG.exe
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

ORDER.docs.exeRegSvcs.exe

pid process

1336 ORDER.docs.exe
2024 RegSvcs.exe
2024 RegSvcs.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

ORDER.docs.exeRegSvcs.exe

description pid process

Token: SeDebugPrivilege 1336 ORDER.docs.exe
Token: SeDebugPrivilege 2024 RegSvcs.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

RegSvcs.exe

pid process

2024 RegSvcs.exe

description	pid	process	target process
PID 1336 set thread context of 2024	1336	ORDER.docs.exe	RegSvcs.exe

pid	process
2000	schtasks.exe

pid	process
2008	REG.exe

pid	process
1336	ORDER.docs.exe
2024	RegSvcs.exe
2024	RegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	1336	ORDER.docs.exe
Token: SeDebugPrivilege	2024	RegSvcs.exe

pid	process
2024	RegSvcs.exe

Suspicious use of WriteProcessMemory 24 IoCs

Processes:

ORDER.docs.exeRegSvcs.exe

description	pid	process	target process
PID 1336 wrote to memory of 2000	1336	ORDER.docs.exe	schtasks.exe
PID 1336 wrote to memory of 2000	1336	ORDER.docs.exe	schtasks.exe
PID 1336 wrote to memory of 2000	1336	ORDER.docs.exe	schtasks.exe
PID 1336 wrote to memory of 2000	1336	ORDER.docs.exe	schtasks.exe
PID 1336 wrote to memory of 2024	1336	ORDER.docs.exe	RegSvcs.exe
PID 1336 wrote to memory of 2024	1336	ORDER.docs.exe	RegSvcs.exe
PID 1336 wrote to memory of 2024	1336	ORDER.docs.exe	RegSvcs.exe
PID 1336 wrote to memory of 2024	1336	ORDER.docs.exe	RegSvcs.exe
PID 1336 wrote to memory of 2024	1336	ORDER.docs.exe	RegSvcs.exe
PID 1336 wrote to memory of 2024	1336	ORDER.docs.exe	RegSvcs.exe
PID 1336 wrote to memory of 2024	1336	ORDER.docs.exe	RegSvcs.exe
PID 1336 wrote to memory of 2024	1336	ORDER.docs.exe	RegSvcs.exe
PID 1336 wrote to memory of 2024	1336	ORDER.docs.exe	RegSvcs.exe
PID 1336 wrote to memory of 2024	1336	ORDER.docs.exe	RegSvcs.exe
PID 1336 wrote to memory of 2024	1336	ORDER.docs.exe	RegSvcs.exe
PID 1336 wrote to memory of 2024	1336	ORDER.docs.exe	RegSvcs.exe
PID 2024 wrote to memory of 2008	2024	RegSvcs.exe	REG.exe
PID 2024 wrote to memory of 2008	2024	RegSvcs.exe	REG.exe
PID 2024 wrote to memory of 2008	2024	RegSvcs.exe	REG.exe
PID 2024 wrote to memory of 2008	2024	RegSvcs.exe	REG.exe
PID 2024 wrote to memory of 1936	2024	RegSvcs.exe	netsh.exe
PID 2024 wrote to memory of 1936	2024	RegSvcs.exe	netsh.exe
PID 2024 wrote to memory of 1936	2024	RegSvcs.exe	netsh.exe
PID 2024 wrote to memory of 1936	2024	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\ORDER.docs.exe
"C:\Users\Admin\AppData\Local\Temp\ORDER.docs.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1336

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\iKLBzY" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE763.tmp"
2⤵
- Creates scheduled task(s)
PID:2000

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 SetWindowsHookEx
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:2024

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:2008

C:\Windows\SysWOW64\netsh.exe
"netsh" wlan show profile
3⤵
PID:1936

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpE763.tmp
Filesize
1KB

MD5
b1a3cc3ea7211bd3ee5dd9451c9aaccc

SHA1
edf8861db5c1f91e8f6bbb24b61d4b7efd3d6e33

SHA256
2191ff302be25e05edbd03add8e62bcd52f5b0cce7830706c2e3e67b839b29b1

SHA512
e45eff372c240ef232d6851b447d4c976f3f7503c0e1cb825f54a09f5c20122fa568846df2e3dfa88ed77c20943760e73637964ccd6bfdb7d31ccb6881f23985

Download Submit
memory/1336-54-0x00000000003B0000-0x0000000000428000-memory.dmp

Filesize
480KB

Download
memory/1336-55-0x0000000074B51000-0x0000000074B53000-memory.dmp

Filesize
8KB

Download
memory/1336-56-0x0000000000530000-0x0000000000540000-memory.dmp

Filesize
64KB

Download
memory/1336-57-0x0000000004430000-0x0000000004488000-memory.dmp

Filesize
352KB

Download
memory/1936-73-0x0000000000000000-mapping.dmp

Download
memory/2000-58-0x0000000000000000-mapping.dmp

Download
memory/2008-72-0x0000000000000000-mapping.dmp

Download
memory/2024-63-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/2024-64-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/2024-65-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/2024-66-0x000000000044CE0E-mapping.dmp

Download
memory/2024-68-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/2024-70-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/2024-61-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/2024-60-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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