agenttesla | abd261879ff1611f42e267980489b5b90cc5d8f1e8317fb118b58d9bc15a1db5

General

Target

PO20200716-July.exe
Size

666KB
MD5

32b3a0cf4205e5e48691c110aa082d1e
SHA1

4ec9cce9ec3a012e53e9b116d40f7506c4632e14
SHA256

95cc09bf84b557baa4ce240a6034d1169e12f4268bf9041c4116f149f7603afe
SHA512

29d351454db9aa84a18704659f89ffa148df0fa5483f4ad2a9e127411862eddad35a073ab1d6feb2c3e00a746f063cdd12972259d5600700994f827819721639

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:
realmen2020@yandex.ru
Password:
zS8ZQ88MrxAbUtE

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/4896-143-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla

Executes dropped EXE 2 IoCs

Processes:

filename1.exeInstallUtil.exe

pid process

236 filename1.exe
4896 InstallUtil.exe

pid	process
236	filename1.exe
4896	InstallUtil.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:

PO20200716-July.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Control Panel\International\Geo\Nation	PO20200716-July.exe

Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
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:

InstallUtil.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

reg.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Windows\CurrentVersion\Run	reg.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\application = "C:\\Windows\\system32\\pcalua.exe -a C:\\Users\\Admin\\AppData\\Roaming\\filename1.exe"	reg.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

filename1.exe

description pid process target process

PID 236 set thread context of 4896 236 filename1.exe InstallUtil.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

description	pid	process	target process
PID 236 set thread context of 4896	236	filename1.exe	InstallUtil.exe

Suspicious behavior: EnumeratesProcesses 27 IoCs

Processes:

PO20200716-July.exefilename1.exeInstallUtil.exe

pid	process
788	PO20200716-July.exe
788	PO20200716-July.exe
788	PO20200716-July.exe
788	PO20200716-July.exe
788	PO20200716-July.exe
788	PO20200716-July.exe
788	PO20200716-July.exe
788	PO20200716-July.exe
788	PO20200716-July.exe
788	PO20200716-July.exe
788	PO20200716-July.exe
788	PO20200716-July.exe
788	PO20200716-July.exe
788	PO20200716-July.exe
788	PO20200716-July.exe
788	PO20200716-July.exe
788	PO20200716-July.exe
788	PO20200716-July.exe
788	PO20200716-July.exe
788	PO20200716-July.exe
788	PO20200716-July.exe
788	PO20200716-July.exe
236	filename1.exe
236	filename1.exe
236	filename1.exe
4896	InstallUtil.exe
4896	InstallUtil.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

PO20200716-July.exefilename1.exeInstallUtil.exe

description pid process

Token: SeDebugPrivilege 788 PO20200716-July.exe
Token: SeDebugPrivilege 236 filename1.exe
Token: SeDebugPrivilege 4896 InstallUtil.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

InstallUtil.exe

pid process

4896 InstallUtil.exe

description	pid	process
Token: SeDebugPrivilege	788	PO20200716-July.exe
Token: SeDebugPrivilege	236	filename1.exe
Token: SeDebugPrivilege	4896	InstallUtil.exe

pid	process
4896	InstallUtil.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

PO20200716-July.execmd.exefilename1.exe

description	pid	process	target process
PID 788 wrote to memory of 624	788	PO20200716-July.exe	cmd.exe
PID 788 wrote to memory of 624	788	PO20200716-July.exe	cmd.exe
PID 788 wrote to memory of 624	788	PO20200716-July.exe	cmd.exe
PID 624 wrote to memory of 2808	624	cmd.exe	reg.exe
PID 624 wrote to memory of 2808	624	cmd.exe	reg.exe
PID 624 wrote to memory of 2808	624	cmd.exe	reg.exe
PID 788 wrote to memory of 236	788	PO20200716-July.exe	filename1.exe
PID 788 wrote to memory of 236	788	PO20200716-July.exe	filename1.exe
PID 788 wrote to memory of 236	788	PO20200716-July.exe	filename1.exe
PID 236 wrote to memory of 4896	236	filename1.exe	InstallUtil.exe
PID 236 wrote to memory of 4896	236	filename1.exe	InstallUtil.exe
PID 236 wrote to memory of 4896	236	filename1.exe	InstallUtil.exe
PID 236 wrote to memory of 4896	236	filename1.exe	InstallUtil.exe
PID 236 wrote to memory of 4896	236	filename1.exe	InstallUtil.exe
PID 236 wrote to memory of 4896	236	filename1.exe	InstallUtil.exe
PID 236 wrote to memory of 4896	236	filename1.exe	InstallUtil.exe
PID 236 wrote to memory of 4896	236	filename1.exe	InstallUtil.exe

outlook_office_path 1 IoCs

Processes:

InstallUtil.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	InstallUtil.exe

outlook_win_path 1 IoCs

Processes:

InstallUtil.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	InstallUtil.exe

C:\Users\Admin\AppData\Local\Temp\PO20200716-July.exe
"C:\Users\Admin\AppData\Local\Temp\PO20200716-July.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:788

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c REG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run /f /v application /t REG_SZ /d C:\Windows\system32\pcalua.exe" -a C:\Users\Admin\AppData\Roaming\filename1.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:624

C:\Windows\SysWOW64\reg.exe
REG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run /f /v application /t REG_SZ /d C:\Windows\system32\pcalua.exe" -a C:\Users\Admin\AppData\Roaming\filename1.exe"
3⤵
- Adds Run key to start application
PID:2808

C:\Users\Admin\AppData\Roaming\filename1.exe
"C:\Users\Admin\AppData\Roaming\filename1.exe"
2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:236

C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe
"C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe"
3⤵
- Executes dropped EXE
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
PID:4896

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Credentials in Files

3

T1081

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

3

T1005

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe
Filesize
41KB

MD5
5d4073b2eb6d217c19f2b22f21bf8d57

SHA1
f0209900fbf08d004b886a0b3ba33ea2b0bf9da8

SHA256
ac1a3f21fcc88f9cee7bf51581eafba24cc76c924f0821deb2afdf1080ddf3d3

SHA512
9ac94880684933ba3407cdc135abc3047543436567af14cd9269c4adc5a6535db7b867d6de0d6238a21b94e69f9890dbb5739155871a624520623a7e56872159

Download Submit
C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe
Filesize
41KB

MD5
5d4073b2eb6d217c19f2b22f21bf8d57

SHA1
f0209900fbf08d004b886a0b3ba33ea2b0bf9da8

SHA256
ac1a3f21fcc88f9cee7bf51581eafba24cc76c924f0821deb2afdf1080ddf3d3

SHA512
9ac94880684933ba3407cdc135abc3047543436567af14cd9269c4adc5a6535db7b867d6de0d6238a21b94e69f9890dbb5739155871a624520623a7e56872159

Download Submit
C:\Users\Admin\AppData\Roaming\filename1.exe
Filesize
666KB

MD5
32b3a0cf4205e5e48691c110aa082d1e

SHA1
4ec9cce9ec3a012e53e9b116d40f7506c4632e14

SHA256
95cc09bf84b557baa4ce240a6034d1169e12f4268bf9041c4116f149f7603afe

SHA512
29d351454db9aa84a18704659f89ffa148df0fa5483f4ad2a9e127411862eddad35a073ab1d6feb2c3e00a746f063cdd12972259d5600700994f827819721639

Download Submit
C:\Users\Admin\AppData\Roaming\filename1.exe
Filesize
666KB

MD5
32b3a0cf4205e5e48691c110aa082d1e

SHA1
4ec9cce9ec3a012e53e9b116d40f7506c4632e14

SHA256
95cc09bf84b557baa4ce240a6034d1169e12f4268bf9041c4116f149f7603afe

SHA512
29d351454db9aa84a18704659f89ffa148df0fa5483f4ad2a9e127411862eddad35a073ab1d6feb2c3e00a746f063cdd12972259d5600700994f827819721639

Download Submit
memory/236-139-0x0000000000000000-mapping.dmp

Download
memory/624-137-0x0000000000000000-mapping.dmp

Download
memory/788-136-0x0000000005CE0000-0x0000000005D24000-memory.dmp

Filesize
272KB

Download
memory/788-133-0x0000000000F20000-0x0000000000FCC000-memory.dmp

Filesize
688KB

Download
memory/788-135-0x0000000005C40000-0x0000000005CD2000-memory.dmp

Filesize
584KB

Download
memory/788-134-0x0000000006140000-0x00000000066E4000-memory.dmp

Filesize
5.6MB

Download
memory/2808-138-0x0000000000000000-mapping.dmp

Download
memory/4896-142-0x0000000000000000-mapping.dmp

Download
memory/4896-143-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/4896-146-0x0000000005A60000-0x0000000005AFC000-memory.dmp

Filesize
624KB

Download
memory/4896-147-0x00000000066B0000-0x0000000006716000-memory.dmp

Filesize
408KB

Download
memory/4896-148-0x0000000006DD0000-0x0000000006E20000-memory.dmp

Filesize
320KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads