agenttesla | 8e8b3b7c12c9e7113b882eb559fe9fd5cac868f8e3238942bcc9fa893521c5a4

General

Target

Quotation#73280126721_Oriental_Fastech_Manufacturing.exe
Size

763KB
MD5

37b814b74d28b26217d2d4b77ad2abc3
SHA1

3df36477b86c9f882aedd0d3a1b6d82f3da1136b
SHA256

8e8b3b7c12c9e7113b882eb559fe9fd5cac868f8e3238942bcc9fa893521c5a4
SHA512

a261e85a645915f6268fc21cf06b0478b0c41c55768ea4d868a2b469f441895a37d22447adaf2bc15071c8807087255ea060e9caf83e47ec688b85a866d047bc

Score

10^/10

agenttesla agilenet keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.privateemail.com
Port:
587
Username:
aammorris@askoblue.com
Password:
hbqtHu^3

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla

AgentTesla Payload 3 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1104-82-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/1104-83-0x000000000043763E-mapping.dmp	family_agenttesla
behavioral1/memory/1104-85-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla

Executes dropped EXE 2 IoCs

Processes:

explorerss.exeInstallUtil.exe

pid process

344 explorerss.exe
1104 InstallUtil.exe
Loads dropped DLL 2 IoCs

Processes:

Quotation#73280126721_Oriental_Fastech_Manufacturing.exeexplorerss.exe

pid process

1116 Quotation#73280126721_Oriental_Fastech_Manufacturing.exe
344 explorerss.exe

pid	process
344	explorerss.exe
1104	InstallUtil.exe

Obfuscated with Agile.Net obfuscator 1 IoCs

Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.

agilenet

Processes:

resource	yara_rule
behavioral1/memory/1116-64-0x0000000000BE0000-0x0000000000C01000-memory.dmp	agile_net

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

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-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Windows\CurrentVersion\Run	reg.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Windows\CurrentVersion\Run\explorers = "C:\\Users\\Admin\\AppData\\Roaming\\explorerss.exe"	reg.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

explorerss.exe

description pid process target process

PID 344 set thread context of 1104 344 explorerss.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 344 set thread context of 1104	344	explorerss.exe	InstallUtil.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

Processes:

Quotation#73280126721_Oriental_Fastech_Manufacturing.exeexplorerss.exeInstallUtil.exe

pid	process
1116	Quotation#73280126721_Oriental_Fastech_Manufacturing.exe
1116	Quotation#73280126721_Oriental_Fastech_Manufacturing.exe
1116	Quotation#73280126721_Oriental_Fastech_Manufacturing.exe
1116	Quotation#73280126721_Oriental_Fastech_Manufacturing.exe
1116	Quotation#73280126721_Oriental_Fastech_Manufacturing.exe
344	explorerss.exe
344	explorerss.exe
1104	InstallUtil.exe
1104	InstallUtil.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

Quotation#73280126721_Oriental_Fastech_Manufacturing.exeexplorerss.exeInstallUtil.exe

description	pid	process
Token: SeDebugPrivilege	1116	Quotation#73280126721_Oriental_Fastech_Manufacturing.exe
Token: SeDebugPrivilege	344	explorerss.exe
Token: SeDebugPrivilege	1104	InstallUtil.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

InstallUtil.exe

pid process

1104 InstallUtil.exe

pid	process
1104	InstallUtil.exe

Suspicious use of WriteProcessMemory 24 IoCs

Processes:

Quotation#73280126721_Oriental_Fastech_Manufacturing.execmd.exeexplorerss.exe

description	pid	process	target process
PID 1116 wrote to memory of 272	1116	Quotation#73280126721_Oriental_Fastech_Manufacturing.exe	cmd.exe
PID 1116 wrote to memory of 272	1116	Quotation#73280126721_Oriental_Fastech_Manufacturing.exe	cmd.exe
PID 1116 wrote to memory of 272	1116	Quotation#73280126721_Oriental_Fastech_Manufacturing.exe	cmd.exe
PID 1116 wrote to memory of 272	1116	Quotation#73280126721_Oriental_Fastech_Manufacturing.exe	cmd.exe
PID 272 wrote to memory of 268	272	cmd.exe	reg.exe
PID 272 wrote to memory of 268	272	cmd.exe	reg.exe
PID 272 wrote to memory of 268	272	cmd.exe	reg.exe
PID 272 wrote to memory of 268	272	cmd.exe	reg.exe
PID 1116 wrote to memory of 344	1116	Quotation#73280126721_Oriental_Fastech_Manufacturing.exe	explorerss.exe
PID 1116 wrote to memory of 344	1116	Quotation#73280126721_Oriental_Fastech_Manufacturing.exe	explorerss.exe
PID 1116 wrote to memory of 344	1116	Quotation#73280126721_Oriental_Fastech_Manufacturing.exe	explorerss.exe
PID 1116 wrote to memory of 344	1116	Quotation#73280126721_Oriental_Fastech_Manufacturing.exe	explorerss.exe
PID 344 wrote to memory of 1104	344	explorerss.exe	InstallUtil.exe
PID 344 wrote to memory of 1104	344	explorerss.exe	InstallUtil.exe
PID 344 wrote to memory of 1104	344	explorerss.exe	InstallUtil.exe
PID 344 wrote to memory of 1104	344	explorerss.exe	InstallUtil.exe
PID 344 wrote to memory of 1104	344	explorerss.exe	InstallUtil.exe
PID 344 wrote to memory of 1104	344	explorerss.exe	InstallUtil.exe
PID 344 wrote to memory of 1104	344	explorerss.exe	InstallUtil.exe
PID 344 wrote to memory of 1104	344	explorerss.exe	InstallUtil.exe
PID 344 wrote to memory of 1104	344	explorerss.exe	InstallUtil.exe
PID 344 wrote to memory of 1104	344	explorerss.exe	InstallUtil.exe
PID 344 wrote to memory of 1104	344	explorerss.exe	InstallUtil.exe
PID 344 wrote to memory of 1104	344	explorerss.exe	InstallUtil.exe

C:\Users\Admin\AppData\Local\Temp\Quotation#73280126721_Oriental_Fastech_Manufacturing.exe
"C:\Users\Admin\AppData\Local\Temp\Quotation#73280126721_Oriental_Fastech_Manufacturing.exe"
1⤵
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1116

C:\Windows\SysWOW64\cmd.exe
"cmd.exe" /c REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "explorers" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\explorerss.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:272

C:\Windows\SysWOW64\reg.exe
REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "explorers" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\explorerss.exe"
3⤵
- Adds Run key to start application
PID:268

C:\Users\Admin\AppData\Roaming\explorerss.exe
"C:\Users\Admin\AppData\Roaming\explorerss.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:344

C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe
"C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe"
3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:1104

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

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

3

T1005

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe
MD5
91c9ae9c9a17a9db5e08b120e668c74c

SHA1
50770954c1ceb0bb6f1d5d3f2de2a0a065773723

SHA256
e56a7e5d3ab9675555e2897fc3faa2dd9265008a4967a7d54030ab8184d2d38f

SHA512
ca504af192e3318359d4742a2ef26ae1b5d040a4f9942782e02549a310158d5d5dbf919b4c748c31ee609d2046bd23ee0c22712891c86ae4a1e3a58c6e67647e

Download Submit
C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe
MD5
91c9ae9c9a17a9db5e08b120e668c74c

SHA1
50770954c1ceb0bb6f1d5d3f2de2a0a065773723

SHA256
e56a7e5d3ab9675555e2897fc3faa2dd9265008a4967a7d54030ab8184d2d38f

SHA512
ca504af192e3318359d4742a2ef26ae1b5d040a4f9942782e02549a310158d5d5dbf919b4c748c31ee609d2046bd23ee0c22712891c86ae4a1e3a58c6e67647e

Download Submit
C:\Users\Admin\AppData\Roaming\explorerss.exe
MD5
37b814b74d28b26217d2d4b77ad2abc3

SHA1
3df36477b86c9f882aedd0d3a1b6d82f3da1136b

SHA256
8e8b3b7c12c9e7113b882eb559fe9fd5cac868f8e3238942bcc9fa893521c5a4

SHA512
a261e85a645915f6268fc21cf06b0478b0c41c55768ea4d868a2b469f441895a37d22447adaf2bc15071c8807087255ea060e9caf83e47ec688b85a866d047bc

Download Submit
C:\Users\Admin\AppData\Roaming\explorerss.exe
MD5
37b814b74d28b26217d2d4b77ad2abc3

SHA1
3df36477b86c9f882aedd0d3a1b6d82f3da1136b

SHA256
8e8b3b7c12c9e7113b882eb559fe9fd5cac868f8e3238942bcc9fa893521c5a4

SHA512
a261e85a645915f6268fc21cf06b0478b0c41c55768ea4d868a2b469f441895a37d22447adaf2bc15071c8807087255ea060e9caf83e47ec688b85a866d047bc

Download Submit
\Users\Admin\AppData\Local\Temp\InstallUtil.exe
MD5
91c9ae9c9a17a9db5e08b120e668c74c

SHA1
50770954c1ceb0bb6f1d5d3f2de2a0a065773723

SHA256
e56a7e5d3ab9675555e2897fc3faa2dd9265008a4967a7d54030ab8184d2d38f

SHA512
ca504af192e3318359d4742a2ef26ae1b5d040a4f9942782e02549a310158d5d5dbf919b4c748c31ee609d2046bd23ee0c22712891c86ae4a1e3a58c6e67647e

Download Submit
\Users\Admin\AppData\Roaming\explorerss.exe
MD5
37b814b74d28b26217d2d4b77ad2abc3

SHA1
3df36477b86c9f882aedd0d3a1b6d82f3da1136b

SHA256
8e8b3b7c12c9e7113b882eb559fe9fd5cac868f8e3238942bcc9fa893521c5a4

SHA512
a261e85a645915f6268fc21cf06b0478b0c41c55768ea4d868a2b469f441895a37d22447adaf2bc15071c8807087255ea060e9caf83e47ec688b85a866d047bc

Download Submit
memory/268-66-0x0000000000000000-mapping.dmp

Download
memory/272-65-0x0000000000000000-mapping.dmp

Download
memory/344-72-0x00000000000A0000-0x00000000000A1000-memory.dmp

Filesize
4KB

Download
memory/344-79-0x0000000000990000-0x0000000000991000-memory.dmp

Filesize
4KB

Download
memory/344-69-0x0000000000000000-mapping.dmp

Download
memory/344-74-0x00000000046B0000-0x00000000046B1000-memory.dmp

Filesize
4KB

Download
memory/344-77-0x00000000046B1000-0x00000000046B2000-memory.dmp

Filesize
4KB

Download
memory/344-78-0x0000000000640000-0x000000000064B000-memory.dmp

Filesize
44KB

Download
memory/1104-83-0x000000000043763E-mapping.dmp

Download
memory/1104-82-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1104-85-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1104-87-0x0000000004820000-0x0000000004821000-memory.dmp

Filesize
4KB

Download
memory/1104-88-0x0000000004821000-0x0000000004822000-memory.dmp

Filesize
4KB

Download
memory/1116-67-0x0000000004771000-0x0000000004772000-memory.dmp

Filesize
4KB

Download
memory/1116-64-0x0000000000BE0000-0x0000000000C01000-memory.dmp

Filesize
132KB

Download
memory/1116-60-0x0000000001220000-0x0000000001221000-memory.dmp

Filesize
4KB

Download
memory/1116-62-0x0000000004770000-0x0000000004771000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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