agenttesla | a9ba0327f1ea8e71d77af0465dffe3038f7bc33910f908c97eab62b7bfcc404d

General

Target

New #PO 84042841.exe
Size

685KB
MD5

20187c9899f3b395219e55133004bd23
SHA1

952ca8e8eed8e2c05f7627e93ed4dad15a0fff9c
SHA256

ba6c27eedbe9c1152f8232f685600ec69ad11ada7b6e82db997e08d89a1b0385
SHA512

c8d9ab5f04c3514c207d712ec4211d41161848b1bc85dc37a4ef6b66f60ef79165ca2cb68fb965fa9e9e9ac42ab14ee7b19f05e1253815f47795f7478cecc082

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.sridurgaagros.com
Port:
587
Username:
[email protected]
Password:
@Hammer1980

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/4696-138-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla

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

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

New #PO 84042841.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation	New #PO 84042841.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

RegSvcs.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\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-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ARevKB = "C:\\Users\\Admin\\AppData\\Roaming\\ARevKB\\ARevKB.exe"	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

New #PO 84042841.exe

description pid process target process

PID 1032 set thread context of 4696 1032 New #PO 84042841.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
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

3924 4696 WerFault.exe RegSvcs.exe
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

4700 schtasks.exe
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

New #PO 84042841.exeRegSvcs.exe

pid process

1032 New #PO 84042841.exe
4696 RegSvcs.exe
4696 RegSvcs.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

New #PO 84042841.exeRegSvcs.exe

description pid process

Token: SeDebugPrivilege 1032 New #PO 84042841.exe
Token: SeDebugPrivilege 4696 RegSvcs.exe

description	pid	process	target process
PID 1032 set thread context of 4696	1032	New #PO 84042841.exe	RegSvcs.exe

pid	pid_target	process	target process
3924	4696	WerFault.exe	RegSvcs.exe

pid	process
4700	schtasks.exe

pid	process
1032	New #PO 84042841.exe
4696	RegSvcs.exe
4696	RegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	1032	New #PO 84042841.exe
Token: SeDebugPrivilege	4696	RegSvcs.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

New #PO 84042841.exe

description	pid	process	target process
PID 1032 wrote to memory of 4700	1032	New #PO 84042841.exe	schtasks.exe
PID 1032 wrote to memory of 4700	1032	New #PO 84042841.exe	schtasks.exe
PID 1032 wrote to memory of 4700	1032	New #PO 84042841.exe	schtasks.exe
PID 1032 wrote to memory of 4696	1032	New #PO 84042841.exe	RegSvcs.exe
PID 1032 wrote to memory of 4696	1032	New #PO 84042841.exe	RegSvcs.exe
PID 1032 wrote to memory of 4696	1032	New #PO 84042841.exe	RegSvcs.exe
PID 1032 wrote to memory of 4696	1032	New #PO 84042841.exe	RegSvcs.exe
PID 1032 wrote to memory of 4696	1032	New #PO 84042841.exe	RegSvcs.exe
PID 1032 wrote to memory of 4696	1032	New #PO 84042841.exe	RegSvcs.exe
PID 1032 wrote to memory of 4696	1032	New #PO 84042841.exe	RegSvcs.exe
PID 1032 wrote to memory of 4696	1032	New #PO 84042841.exe	RegSvcs.exe

outlook_office_path 1 IoCs

Processes:

RegSvcs.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\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-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\New #PO 84042841.exe
"C:\Users\Admin\AppData\Local\Temp\New #PO 84042841.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1032

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\LGLnPADnHxaOpi" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC8C3.tmp"
2⤵
- Creates scheduled task(s)
PID:4700

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
- outlook_office_path
- outlook_win_path
PID:4696

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4696 -s 1580
3⤵
- Program crash
PID:3924

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 4696 -ip 4696
1⤵
PID:3136

Network

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

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpC8C3.tmp
Filesize
1KB

MD5
cf521ccf194becb4ee6ba156b7895265

SHA1
43a71fa7c2b09af24585e4e3816eeaab8f388a84

SHA256
9a8e6e579583f1019375940d9fd0c8696f86f03b2ef2202099094b6b6ee177bc

SHA512
98fc89e85f99dd91eb2fef9c067969a2918447f9414cbed5d83e7b28dd02d0eece68dfac0dcb7f6a5792eee80f2b088df423e3324fb369c6f5584cdf257785ea

Download Submit
memory/1032-130-0x00000000004E0000-0x0000000000590000-memory.dmp

Filesize
704KB

Download
memory/1032-131-0x00000000055F0000-0x0000000005B94000-memory.dmp

Filesize
5.6MB

Download
memory/1032-132-0x0000000004F50000-0x0000000004FE2000-memory.dmp

Filesize
584KB

Download
memory/1032-133-0x0000000004F20000-0x0000000004F2A000-memory.dmp

Filesize
40KB

Download
memory/1032-134-0x0000000008A20000-0x0000000008ABC000-memory.dmp

Filesize
624KB

Download
memory/4696-137-0x0000000000000000-mapping.dmp

Download
memory/4696-138-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/4696-139-0x00000000056D0000-0x0000000005736000-memory.dmp

Filesize
408KB

Download
memory/4696-140-0x0000000006A60000-0x0000000006AB0000-memory.dmp

Filesize
320KB

Download
memory/4700-135-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads