agenttesla | d167d1bcb7045883cf93f8a4dcf16f289ec82e2c68a4b23d29868770278c93b7

General

Target

shipping documents.exe
Size

759KB
MD5

9fb2846dca4accdd1c4fcaf212e1c6f6
SHA1

b49cfbe4a19d7ab3ee7d1a33425ccc822bba3d2e
SHA256

d0b71fdf377abca1c191fedeab8311dac158632edb66f3b894166686d61bfad6
SHA512

9ae52ef0f49c06e650c2ede614b6ff5f3a2b6de5cc18b892c5cf72bd583a4919f160ad4c30cac8a126fdaf1e3066a7a674e471138dc70213268f597227e81616

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.varda.com.tr
Port:
587
Username:
[email protected]
Password:
varda9997929

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/1392-138-0x0000000000400000-0x0000000000474000-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:

shipping documents.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Control Panel\International\Geo\Nation	shipping documents.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

RegSvcs.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\15.0\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-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\CpSnJ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\CpSnJ\\CpSnJ.exe"	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

shipping documents.exe

description pid process target process

PID 3932 set thread context of 1392 3932 shipping documents.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

652 schtasks.exe
Modifies registry key 1 TTPs 1 IoCs

Modify Registry
T1112

Processes:

REG.exe

pid process

4796 REG.exe
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

shipping documents.exeRegSvcs.exe

pid process

3932 shipping documents.exe
1392 RegSvcs.exe
1392 RegSvcs.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

shipping documents.exeRegSvcs.exe

description pid process

Token: SeDebugPrivilege 3932 shipping documents.exe
Token: SeDebugPrivilege 1392 RegSvcs.exe

description	pid	process	target process
PID 3932 set thread context of 1392	3932	shipping documents.exe	RegSvcs.exe

pid	process
652	schtasks.exe

pid	process
4796	REG.exe

pid	process
3932	shipping documents.exe
1392	RegSvcs.exe
1392	RegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	3932	shipping documents.exe
Token: SeDebugPrivilege	1392	RegSvcs.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

shipping documents.exeRegSvcs.exe

description	pid	process	target process
PID 3932 wrote to memory of 652	3932	shipping documents.exe	schtasks.exe
PID 3932 wrote to memory of 652	3932	shipping documents.exe	schtasks.exe
PID 3932 wrote to memory of 652	3932	shipping documents.exe	schtasks.exe
PID 3932 wrote to memory of 1392	3932	shipping documents.exe	RegSvcs.exe
PID 3932 wrote to memory of 1392	3932	shipping documents.exe	RegSvcs.exe
PID 3932 wrote to memory of 1392	3932	shipping documents.exe	RegSvcs.exe
PID 3932 wrote to memory of 1392	3932	shipping documents.exe	RegSvcs.exe
PID 3932 wrote to memory of 1392	3932	shipping documents.exe	RegSvcs.exe
PID 3932 wrote to memory of 1392	3932	shipping documents.exe	RegSvcs.exe
PID 3932 wrote to memory of 1392	3932	shipping documents.exe	RegSvcs.exe
PID 3932 wrote to memory of 1392	3932	shipping documents.exe	RegSvcs.exe
PID 1392 wrote to memory of 4796	1392	RegSvcs.exe	REG.exe
PID 1392 wrote to memory of 4796	1392	RegSvcs.exe	REG.exe
PID 1392 wrote to memory of 4796	1392	RegSvcs.exe	REG.exe

outlook_office_path 1 IoCs

Processes:

RegSvcs.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\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-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\shipping documents.exe
"C:\Users\Admin\AppData\Local\Temp\shipping documents.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3932

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\xdfilFYBLrw" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8A5E.tmp"
2⤵
- Creates scheduled task(s)
PID:652

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:1392

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:4796

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

2

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\tmp8A5E.tmp
Filesize
1KB

MD5
4470422cf3e43c948a16a0988bc5d57b

SHA1
768ebb700f01f88c1ee8a51608e0f0c4991756d8

SHA256
7a7f147d79c1300b7a13482d122546e5804395a0674e787aed785c89771201ea

SHA512
cc822bbaa7693df0b4c300b55296962b1976c697ec7a9e74bd7d0dddf0fce0b09268b278f52e764656871714f0a4d3e2f26212ff6254aeb046cb42cd89bf728d

Download Submit
memory/652-135-0x0000000000000000-mapping.dmp

Download
memory/1392-137-0x0000000000000000-mapping.dmp

Download
memory/1392-138-0x0000000000400000-0x0000000000474000-memory.dmp

Filesize
464KB

Download
memory/1392-139-0x00000000059D0000-0x0000000005A36000-memory.dmp

Filesize
408KB

Download
memory/1392-140-0x00000000067A0000-0x00000000067F0000-memory.dmp

Filesize
320KB

Download
memory/1392-142-0x0000000006800000-0x000000000680A000-memory.dmp

Filesize
40KB

Download
memory/3932-131-0x0000000000810000-0x00000000008D2000-memory.dmp

Filesize
776KB

Download
memory/3932-132-0x0000000007AF0000-0x0000000008094000-memory.dmp

Filesize
5.6MB

Download
memory/3932-133-0x0000000007620000-0x00000000076B2000-memory.dmp

Filesize
584KB

Download
memory/3932-134-0x0000000007800000-0x000000000789C000-memory.dmp

Filesize
624KB

Download
memory/4796-141-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads