agenttesla | 0f9b8d8ae8d005c9ae9258981a54caf8652d0287cf4061993caafc90414849eb

General

Target

SKM_C3350191107102300.exe
Size

551KB
MD5

158dd75ecfc180976e54fad0b80d0d56
SHA1

0f57c8303f27a51be62a468ea625830b293f93b9
SHA256

0687d57f87a19e9860bc0f991a91ea9af31f8625dd15d191f4fac7e73520b49b
SHA512

63930b1abb98a7efefca9661f7a1fa96fbfb8f00b876973ad2d4408073a3d0f58ba6773c64542ec24be809c252454af1b03aa4decdde09b2bcec47b2374e2d0d

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.yandex.ru
Port:
587
Username:
[email protected]
Password:
bigboy5570@@@@

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/1316-61-0x0000000000400000-0x0000000000458000-memory.dmp	family_agenttesla
behavioral1/memory/1316-62-0x0000000000400000-0x0000000000458000-memory.dmp	family_agenttesla
behavioral1/memory/1316-63-0x0000000000400000-0x0000000000458000-memory.dmp	family_agenttesla
behavioral1/memory/1316-64-0x000000000045331E-mapping.dmp	family_agenttesla
behavioral1/memory/1316-66-0x0000000000400000-0x0000000000458000-memory.dmp	family_agenttesla
behavioral1/memory/1316-68-0x0000000000400000-0x0000000000458000-memory.dmp	family_agenttesla

Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

SKM_C3350191107102300.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	SKM_C3350191107102300.exe
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	SKM_C3350191107102300.exe
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	SKM_C3350191107102300.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

SKM_C3350191107102300.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows\CurrentVersion\Run\BAVLA = "C:\\Users\\Admin\\AppData\\Roaming\\BAVLA\\BAVLA.exe"	SKM_C3350191107102300.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

SKM_C3350191107102300.exe

description pid process target process

PID 2008 set thread context of 1316 2008 SKM_C3350191107102300.exe SKM_C3350191107102300.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

1744 schtasks.exe

description	pid	process	target process
PID 2008 set thread context of 1316	2008	SKM_C3350191107102300.exe	SKM_C3350191107102300.exe

pid	process
1744	schtasks.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

SKM_C3350191107102300.exeSKM_C3350191107102300.exe

pid	process
2008	SKM_C3350191107102300.exe
2008	SKM_C3350191107102300.exe
2008	SKM_C3350191107102300.exe
1316	SKM_C3350191107102300.exe
1316	SKM_C3350191107102300.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

SKM_C3350191107102300.exeSKM_C3350191107102300.exe

description pid process

Token: SeDebugPrivilege 2008 SKM_C3350191107102300.exe
Token: SeDebugPrivilege 1316 SKM_C3350191107102300.exe

description	pid	process
Token: SeDebugPrivilege	2008	SKM_C3350191107102300.exe
Token: SeDebugPrivilege	1316	SKM_C3350191107102300.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

SKM_C3350191107102300.exe

description	pid	process	target process
PID 2008 wrote to memory of 1744	2008	SKM_C3350191107102300.exe	schtasks.exe
PID 2008 wrote to memory of 1744	2008	SKM_C3350191107102300.exe	schtasks.exe
PID 2008 wrote to memory of 1744	2008	SKM_C3350191107102300.exe	schtasks.exe
PID 2008 wrote to memory of 1744	2008	SKM_C3350191107102300.exe	schtasks.exe
PID 2008 wrote to memory of 1316	2008	SKM_C3350191107102300.exe	SKM_C3350191107102300.exe
PID 2008 wrote to memory of 1316	2008	SKM_C3350191107102300.exe	SKM_C3350191107102300.exe
PID 2008 wrote to memory of 1316	2008	SKM_C3350191107102300.exe	SKM_C3350191107102300.exe
PID 2008 wrote to memory of 1316	2008	SKM_C3350191107102300.exe	SKM_C3350191107102300.exe
PID 2008 wrote to memory of 1316	2008	SKM_C3350191107102300.exe	SKM_C3350191107102300.exe
PID 2008 wrote to memory of 1316	2008	SKM_C3350191107102300.exe	SKM_C3350191107102300.exe
PID 2008 wrote to memory of 1316	2008	SKM_C3350191107102300.exe	SKM_C3350191107102300.exe
PID 2008 wrote to memory of 1316	2008	SKM_C3350191107102300.exe	SKM_C3350191107102300.exe
PID 2008 wrote to memory of 1316	2008	SKM_C3350191107102300.exe	SKM_C3350191107102300.exe

outlook_office_path 1 IoCs

Processes:

SKM_C3350191107102300.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	SKM_C3350191107102300.exe

outlook_win_path 1 IoCs

Processes:

SKM_C3350191107102300.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	SKM_C3350191107102300.exe

C:\Users\Admin\AppData\Local\Temp\SKM_C3350191107102300.exe
"C:\Users\Admin\AppData\Local\Temp\SKM_C3350191107102300.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2008

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\EGqBbvy" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB1B4.tmp"
2⤵
- Creates scheduled task(s)
PID:1744

C:\Users\Admin\AppData\Local\Temp\SKM_C3350191107102300.exe
"{path}"
2⤵
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:1316

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Registry Run Keys / Startup Folder

Scheduled Task

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Modify Registry

1

T1112

Credential Access

Credentials in Files

2

T1081

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpB1B4.tmp

Filesize
1KB

MD5
6b7cef7e91b71b07c8eb791ba88cb533

SHA1
4b8bb0f83829ea3373c11f6b2ca27ea233119b3b

SHA256
45de5257ea6b48e53e8ec1c4f2af70f46777c1660bec43172b43241c014a0ddb

SHA512
2b04b8c82988665bbe20e55412f2ee2a6f599f32f9d194b7192c78ff19b16b9a970a0ef6b10ce2e06ca9de26a9dad6c929749a2176bb218332b6ff86f502e6cd

Download Submit
memory/1316-61-0x0000000000400000-0x0000000000458000-memory.dmp

Filesize
352KB

Download
memory/1316-58-0x0000000000400000-0x0000000000458000-memory.dmp

Filesize
352KB

Download
memory/1316-59-0x0000000000400000-0x0000000000458000-memory.dmp

Filesize
352KB

Download
memory/1316-62-0x0000000000400000-0x0000000000458000-memory.dmp

Filesize
352KB

Download
memory/1316-63-0x0000000000400000-0x0000000000458000-memory.dmp

Filesize
352KB

Download
memory/1316-64-0x000000000045331E-mapping.dmp

Download
memory/1316-66-0x0000000000400000-0x0000000000458000-memory.dmp

Filesize
352KB

Download
memory/1316-68-0x0000000000400000-0x0000000000458000-memory.dmp

Filesize
352KB

Download
memory/1316-70-0x0000000074B50000-0x00000000750FB000-memory.dmp

Filesize
5.7MB

Download
memory/1744-56-0x0000000000000000-mapping.dmp

Download
memory/2008-55-0x0000000074B50000-0x00000000750FB000-memory.dmp

Filesize
5.7MB

Download
memory/2008-54-0x0000000075DB1000-0x0000000075DB3000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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