agenttesla | 9c9d3701bb36c5fc3498ca7d57d553ee644ddd6daa8e551b80b2d109bdd08d35

Analysis

max time kernel
127s
max time network
30s
platform
windows7_x64
resource
win7v20201028
submitted
26-02-2021 06:25

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General

Target

tesla enquiries.doc
Size

132KB
MD5

85585f5162a053f177019cec24e86375
SHA1

720f60ada0426fe82aabaa4c3f8db95c2e09b07a
SHA256

9c9d3701bb36c5fc3498ca7d57d553ee644ddd6daa8e551b80b2d109bdd08d35
SHA512

6f1f1fae3a7d5a16611df9f46e78b57d72721499b7ad7b79bc2054d71b02c9245338a8f6ffd19e4b23944ae511c08c9eb02e788bbe26e5b940703b41bd9c38ea

Score

10^/10

agenttesla keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.orienttech.com.qa
Port:
587
Username:
[email protected]
Password:
Op{^fLb9gN[!

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/1624-20-0x00000000004374AE-mapping.dmp	family_agenttesla
behavioral1/memory/1624-19-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/1624-24-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla

Blocklisted process makes network request 1 IoCs

Processes:

EQNEDT32.EXE

flow pid process

6 1956 EQNEDT32.EXE
Executes dropped EXE 2 IoCs

Processes:

joe6541.exejoe6541.exe

pid process

928 joe6541.exe
1624 joe6541.exe
Loads dropped DLL 7 IoCs

Processes:

EQNEDT32.EXEWerFault.exe

pid process

1956 EQNEDT32.EXE
1956 EQNEDT32.EXE
1496 WerFault.exe
1496 WerFault.exe
1496 WerFault.exe
1496 WerFault.exe
1496 WerFault.exe
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware

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

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

Data from Local System
T1005

Credentials in Files
T1081

flow	pid	process
6	1956	EQNEDT32.EXE

pid	process
1956	EQNEDT32.EXE
1956	EQNEDT32.EXE
1496	WerFault.exe
1496	WerFault.exe
1496	WerFault.exe
1496	WerFault.exe
1496	WerFault.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

joe6541.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Windows\CurrentVersion\Run\NewApp = "C:\\Users\\Admin\\AppData\\Roaming\\NewApp\\NewApp.exe"	joe6541.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 12 IoCs

Processes:

joe6541.exe

pid	process
928	joe6541.exe
928	joe6541.exe
928	joe6541.exe
928	joe6541.exe
928	joe6541.exe
928	joe6541.exe
928	joe6541.exe
928	joe6541.exe
928	joe6541.exe
928	joe6541.exe
928	joe6541.exe
928	joe6541.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

joe6541.exe

description pid process target process

PID 928 set thread context of 1624 928 joe6541.exe joe6541.exe
Drops file in Windows directory 1 IoCs

Processes:

WINWORD.EXE

description ioc process

File opened for modification C:\Windows\Debug\WIA\wiatrace.log WINWORD.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

1496 928 WerFault.exe joe6541.exe
Office loads VBA resources, possible macro or embedded object present
Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

1840 timeout.exe
Launches Equation Editor 1 TTPs 1 IoCs
Equation Editor is an old Office component often targeted by exploits such as CVE-2017-11882.
exploit

Exploitation for Client Execution
T1203

Processes:

EQNEDT32.EXE

pid process

1956 EQNEDT32.EXE

description	pid	process	target process
PID 928 set thread context of 1624	928	joe6541.exe	joe6541.exe

description	ioc	process
File opened for modification	C:\Windows\Debug\WIA\wiatrace.log	WINWORD.EXE

pid	pid_target	process	target process
1496	928	WerFault.exe	joe6541.exe

pid	process
1840	timeout.exe

pid	process
1956	EQNEDT32.EXE

Modifies Internet Explorer settings 1 TTPs 9 IoCs

adware spyware

Modify Registry

T1112

Processes:

WINWORD.EXE

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1"	WINWORD.EXE
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\Toolbar	WINWORD.EXE
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt	WINWORD.EXE
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	WINWORD.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55"	WINWORD.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000"	WINWORD.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	WINWORD.EXE
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	WINWORD.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\ONBttnIE.dll/105"	WINWORD.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

WINWORD.EXE

pid process

1108 WINWORD.EXE

pid	process
1108	WINWORD.EXE

Suspicious behavior: EnumeratesProcesses 10 IoCs

Processes:

joe6541.exejoe6541.exeWerFault.exe

pid	process
928	joe6541.exe
928	joe6541.exe
928	joe6541.exe
1624	joe6541.exe
1624	joe6541.exe
1496	WerFault.exe
1496	WerFault.exe
1496	WerFault.exe
1496	WerFault.exe
1496	WerFault.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

joe6541.exejoe6541.exeWerFault.exe

description pid process

Token: SeDebugPrivilege 928 joe6541.exe
Token: SeDebugPrivilege 1624 joe6541.exe
Token: SeDebugPrivilege 1496 WerFault.exe
Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

WINWORD.EXEjoe6541.exe

pid process

1108 WINWORD.EXE
1108 WINWORD.EXE
1624 joe6541.exe

description	pid	process
Token: SeDebugPrivilege	928	joe6541.exe
Token: SeDebugPrivilege	1624	joe6541.exe
Token: SeDebugPrivilege	1496	WerFault.exe

pid	process
1108	WINWORD.EXE
1108	WINWORD.EXE
1624	joe6541.exe

Suspicious use of WriteProcessMemory 25 IoCs

Processes:

EQNEDT32.EXEjoe6541.execmd.exe

description	pid	process	target process
PID 1956 wrote to memory of 928	1956	EQNEDT32.EXE	joe6541.exe
PID 1956 wrote to memory of 928	1956	EQNEDT32.EXE	joe6541.exe
PID 1956 wrote to memory of 928	1956	EQNEDT32.EXE	joe6541.exe
PID 1956 wrote to memory of 928	1956	EQNEDT32.EXE	joe6541.exe
PID 928 wrote to memory of 1988	928	joe6541.exe	cmd.exe
PID 928 wrote to memory of 1988	928	joe6541.exe	cmd.exe
PID 928 wrote to memory of 1988	928	joe6541.exe	cmd.exe
PID 928 wrote to memory of 1988	928	joe6541.exe	cmd.exe
PID 1988 wrote to memory of 1840	1988	cmd.exe	timeout.exe
PID 1988 wrote to memory of 1840	1988	cmd.exe	timeout.exe
PID 1988 wrote to memory of 1840	1988	cmd.exe	timeout.exe
PID 1988 wrote to memory of 1840	1988	cmd.exe	timeout.exe
PID 928 wrote to memory of 1624	928	joe6541.exe	joe6541.exe
PID 928 wrote to memory of 1624	928	joe6541.exe	joe6541.exe
PID 928 wrote to memory of 1624	928	joe6541.exe	joe6541.exe
PID 928 wrote to memory of 1624	928	joe6541.exe	joe6541.exe
PID 928 wrote to memory of 1624	928	joe6541.exe	joe6541.exe
PID 928 wrote to memory of 1624	928	joe6541.exe	joe6541.exe
PID 928 wrote to memory of 1624	928	joe6541.exe	joe6541.exe
PID 928 wrote to memory of 1624	928	joe6541.exe	joe6541.exe
PID 928 wrote to memory of 1624	928	joe6541.exe	joe6541.exe
PID 928 wrote to memory of 1496	928	joe6541.exe	WerFault.exe
PID 928 wrote to memory of 1496	928	joe6541.exe	WerFault.exe
PID 928 wrote to memory of 1496	928	joe6541.exe	WerFault.exe
PID 928 wrote to memory of 1496	928	joe6541.exe	WerFault.exe

C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE
"C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\tesla enquiries.doc"
1⤵
- Drops file in Windows directory
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:1108

C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE
"C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE" -Embedding
1⤵
- Blocklisted process makes network request
- Loads dropped DLL
- Launches Equation Editor
- Suspicious use of WriteProcessMemory
PID:1956

C:\Users\Admin\AppData\Roaming\joe6541.exe
"C:\Users\Admin\AppData\Roaming\joe6541.exe"
2⤵
- Executes dropped EXE
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:928

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c timeout 1
3⤵
- Suspicious use of WriteProcessMemory
PID:1988

C:\Windows\SysWOW64\timeout.exe
timeout 1
4⤵
- Delays execution with timeout.exe
PID:1840

C:\Users\Admin\AppData\Roaming\joe6541.exe
"C:\Users\Admin\AppData\Roaming\joe6541.exe"
3⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:1624

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 928 -s 1120
3⤵
- Loads dropped DLL
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1496

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Exploitation for Client Execution

T1203

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Credentials in Files

T1081

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\joe6541.exe
MD5
9decf18e822a2b03210185facccba692

SHA1
620b31f55ddad8ae34067f945cc0b7a7933e8538

SHA256
17a68f9da8d4a8ad6bedb9e2245d88ec5d368ed97c4de660057a1b4ef17b848a

SHA512
e0f8b91244e0fe7f0e734599957c59dd4afdbad2fa6b8b7f97f7c792855b8ef8667406c89fcc195c6612a606338cff6ce5bb91f512c17399e37ef47a0f4f47ad

Download Submit
C:\Users\Admin\AppData\Roaming\joe6541.exe
MD5
9decf18e822a2b03210185facccba692

SHA1
620b31f55ddad8ae34067f945cc0b7a7933e8538

SHA256
17a68f9da8d4a8ad6bedb9e2245d88ec5d368ed97c4de660057a1b4ef17b848a

SHA512
e0f8b91244e0fe7f0e734599957c59dd4afdbad2fa6b8b7f97f7c792855b8ef8667406c89fcc195c6612a606338cff6ce5bb91f512c17399e37ef47a0f4f47ad

Download Submit
C:\Users\Admin\AppData\Roaming\joe6541.exe
MD5
9decf18e822a2b03210185facccba692

SHA1
620b31f55ddad8ae34067f945cc0b7a7933e8538

SHA256
17a68f9da8d4a8ad6bedb9e2245d88ec5d368ed97c4de660057a1b4ef17b848a

SHA512
e0f8b91244e0fe7f0e734599957c59dd4afdbad2fa6b8b7f97f7c792855b8ef8667406c89fcc195c6612a606338cff6ce5bb91f512c17399e37ef47a0f4f47ad

Download Submit
\Users\Admin\AppData\Roaming\joe6541.exe
MD5
9decf18e822a2b03210185facccba692

SHA1
620b31f55ddad8ae34067f945cc0b7a7933e8538

SHA256
17a68f9da8d4a8ad6bedb9e2245d88ec5d368ed97c4de660057a1b4ef17b848a

SHA512
e0f8b91244e0fe7f0e734599957c59dd4afdbad2fa6b8b7f97f7c792855b8ef8667406c89fcc195c6612a606338cff6ce5bb91f512c17399e37ef47a0f4f47ad

Download Submit
\Users\Admin\AppData\Roaming\joe6541.exe
MD5
9decf18e822a2b03210185facccba692

SHA1
620b31f55ddad8ae34067f945cc0b7a7933e8538

SHA256
17a68f9da8d4a8ad6bedb9e2245d88ec5d368ed97c4de660057a1b4ef17b848a

SHA512
e0f8b91244e0fe7f0e734599957c59dd4afdbad2fa6b8b7f97f7c792855b8ef8667406c89fcc195c6612a606338cff6ce5bb91f512c17399e37ef47a0f4f47ad

Download Submit
\Users\Admin\AppData\Roaming\joe6541.exe
MD5
9decf18e822a2b03210185facccba692

SHA1
620b31f55ddad8ae34067f945cc0b7a7933e8538

SHA256
17a68f9da8d4a8ad6bedb9e2245d88ec5d368ed97c4de660057a1b4ef17b848a

SHA512
e0f8b91244e0fe7f0e734599957c59dd4afdbad2fa6b8b7f97f7c792855b8ef8667406c89fcc195c6612a606338cff6ce5bb91f512c17399e37ef47a0f4f47ad

Download Submit
\Users\Admin\AppData\Roaming\joe6541.exe
MD5
9decf18e822a2b03210185facccba692

SHA1
620b31f55ddad8ae34067f945cc0b7a7933e8538

SHA256
17a68f9da8d4a8ad6bedb9e2245d88ec5d368ed97c4de660057a1b4ef17b848a

SHA512
e0f8b91244e0fe7f0e734599957c59dd4afdbad2fa6b8b7f97f7c792855b8ef8667406c89fcc195c6612a606338cff6ce5bb91f512c17399e37ef47a0f4f47ad

Download Submit
\Users\Admin\AppData\Roaming\joe6541.exe
MD5
9decf18e822a2b03210185facccba692

SHA1
620b31f55ddad8ae34067f945cc0b7a7933e8538

SHA256
17a68f9da8d4a8ad6bedb9e2245d88ec5d368ed97c4de660057a1b4ef17b848a

SHA512
e0f8b91244e0fe7f0e734599957c59dd4afdbad2fa6b8b7f97f7c792855b8ef8667406c89fcc195c6612a606338cff6ce5bb91f512c17399e37ef47a0f4f47ad

Download Submit
\Users\Admin\AppData\Roaming\joe6541.exe
MD5
9decf18e822a2b03210185facccba692

SHA1
620b31f55ddad8ae34067f945cc0b7a7933e8538

SHA256
17a68f9da8d4a8ad6bedb9e2245d88ec5d368ed97c4de660057a1b4ef17b848a

SHA512
e0f8b91244e0fe7f0e734599957c59dd4afdbad2fa6b8b7f97f7c792855b8ef8667406c89fcc195c6612a606338cff6ce5bb91f512c17399e37ef47a0f4f47ad

Download Submit
\Users\Admin\AppData\Roaming\joe6541.exe
MD5
9decf18e822a2b03210185facccba692

SHA1
620b31f55ddad8ae34067f945cc0b7a7933e8538

SHA256
17a68f9da8d4a8ad6bedb9e2245d88ec5d368ed97c4de660057a1b4ef17b848a

SHA512
e0f8b91244e0fe7f0e734599957c59dd4afdbad2fa6b8b7f97f7c792855b8ef8667406c89fcc195c6612a606338cff6ce5bb91f512c17399e37ef47a0f4f47ad

Download Submit
memory/928-12-0x000000006B190000-0x000000006B87E000-memory.dmp

Filesize
6.9MB

Download
memory/928-13-0x0000000000D20000-0x0000000000D21000-memory.dmp

Filesize
4KB

Download
memory/928-15-0x0000000000440000-0x0000000000441000-memory.dmp

Filesize
4KB

Download
memory/928-16-0x0000000000250000-0x0000000000297000-memory.dmp

Filesize
284KB

Download
memory/928-9-0x0000000000000000-mapping.dmp

Download
memory/1108-4-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1108-3-0x000000006FFD1000-0x000000006FFD3000-memory.dmp

Filesize
8KB

Download
memory/1108-2-0x0000000072551000-0x0000000072554000-memory.dmp

Filesize
12KB

Download
memory/1400-6-0x000007FEF7510000-0x000007FEF778A000-memory.dmp

Filesize
2.5MB

Download
memory/1496-33-0x0000000000340000-0x0000000000341000-memory.dmp

Filesize
4KB

Download
memory/1496-26-0x0000000001EE0000-0x0000000001EF1000-memory.dmp

Filesize
68KB

Download
memory/1496-23-0x0000000000000000-mapping.dmp

Download
memory/1624-24-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1624-22-0x000000006B190000-0x000000006B87E000-memory.dmp

Filesize
6.9MB

Download
memory/1624-19-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1624-20-0x00000000004374AE-mapping.dmp

Download
memory/1624-32-0x00000000003A0000-0x00000000003A1000-memory.dmp

Filesize
4KB

Download
memory/1624-34-0x00000000003A1000-0x00000000003A2000-memory.dmp

Filesize
4KB

Download
memory/1840-18-0x0000000000000000-mapping.dmp

Download
memory/1956-5-0x00000000760D1000-0x00000000760D3000-memory.dmp

Filesize
8KB

Download
memory/1988-17-0x0000000000000000-mapping.dmp

Download