agenttesla | 9d58455a3680d9059743a60fb93d4c8c5a90fbc53815172059f323b902db412b

General

Target

9a19ab56f524f1aaa8ec1a76f2f32bd6.exe
Size

732KB
MD5

9a19ab56f524f1aaa8ec1a76f2f32bd6
SHA1

1ac24f29be30bc847ce9b0d281fed839da401a1f
SHA256

9d58455a3680d9059743a60fb93d4c8c5a90fbc53815172059f323b902db412b
SHA512

affd7569a5f64225097684929c42ed6d3902b4a46eb078c1fc08a95fc7b2980ce8e49f08a941a1b8ac6956d120a1e776b81a795e742dbffaee6ddb5c53071657

Score

10^/10

agenttesla keylogger spyware stealer trojan

Malware Config

Extracted

Credentials

Protocol: smtp
Host:
smtp.risjs.com
Port:
587
Username:
rongsheng@risjs.com
Password:
rekbcOs0

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.risjs.com
Port:
587
Username:
rongsheng@risjs.com
Password:
rekbcOs0

Signatures

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

AgentTesla Payload 2 IoCs

Processes:

resource	yara_rule
behavioral2/memory/1056-14-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral2/memory/1056-15-0x000000000044CFAE-mapping.dmp	family_agenttesla

Drops file in Drivers directory 1 IoCs

Processes:

9a19ab56f524f1aaa8ec1a76f2f32bd6.exe

description ioc process

File opened for modification C:\Windows\system32\drivers\etc\hosts 9a19ab56f524f1aaa8ec1a76f2f32bd6.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
Suspicious use of SetThreadContext 1 IoCs

Processes:

9a19ab56f524f1aaa8ec1a76f2f32bd6.exe

description pid process target process

PID 988 set thread context of 1056 988 9a19ab56f524f1aaa8ec1a76f2f32bd6.exe 9a19ab56f524f1aaa8ec1a76f2f32bd6.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

1468 schtasks.exe
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

9a19ab56f524f1aaa8ec1a76f2f32bd6.exe9a19ab56f524f1aaa8ec1a76f2f32bd6.exe

pid process

988 9a19ab56f524f1aaa8ec1a76f2f32bd6.exe
1056 9a19ab56f524f1aaa8ec1a76f2f32bd6.exe
1056 9a19ab56f524f1aaa8ec1a76f2f32bd6.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

9a19ab56f524f1aaa8ec1a76f2f32bd6.exe9a19ab56f524f1aaa8ec1a76f2f32bd6.exe

description pid process

Token: SeDebugPrivilege 988 9a19ab56f524f1aaa8ec1a76f2f32bd6.exe
Token: SeDebugPrivilege 1056 9a19ab56f524f1aaa8ec1a76f2f32bd6.exe

description	ioc	process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	9a19ab56f524f1aaa8ec1a76f2f32bd6.exe

description	pid	process	target process
PID 988 set thread context of 1056	988	9a19ab56f524f1aaa8ec1a76f2f32bd6.exe	9a19ab56f524f1aaa8ec1a76f2f32bd6.exe

pid	process
1468	schtasks.exe

pid	process
988	9a19ab56f524f1aaa8ec1a76f2f32bd6.exe
1056	9a19ab56f524f1aaa8ec1a76f2f32bd6.exe
1056	9a19ab56f524f1aaa8ec1a76f2f32bd6.exe

description	pid	process
Token: SeDebugPrivilege	988	9a19ab56f524f1aaa8ec1a76f2f32bd6.exe
Token: SeDebugPrivilege	1056	9a19ab56f524f1aaa8ec1a76f2f32bd6.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

9a19ab56f524f1aaa8ec1a76f2f32bd6.exe9a19ab56f524f1aaa8ec1a76f2f32bd6.exe

description	pid	process	target process
PID 988 wrote to memory of 1468	988	9a19ab56f524f1aaa8ec1a76f2f32bd6.exe	schtasks.exe
PID 988 wrote to memory of 1468	988	9a19ab56f524f1aaa8ec1a76f2f32bd6.exe	schtasks.exe
PID 988 wrote to memory of 1468	988	9a19ab56f524f1aaa8ec1a76f2f32bd6.exe	schtasks.exe
PID 988 wrote to memory of 1056	988	9a19ab56f524f1aaa8ec1a76f2f32bd6.exe	9a19ab56f524f1aaa8ec1a76f2f32bd6.exe
PID 988 wrote to memory of 1056	988	9a19ab56f524f1aaa8ec1a76f2f32bd6.exe	9a19ab56f524f1aaa8ec1a76f2f32bd6.exe
PID 988 wrote to memory of 1056	988	9a19ab56f524f1aaa8ec1a76f2f32bd6.exe	9a19ab56f524f1aaa8ec1a76f2f32bd6.exe
PID 988 wrote to memory of 1056	988	9a19ab56f524f1aaa8ec1a76f2f32bd6.exe	9a19ab56f524f1aaa8ec1a76f2f32bd6.exe
PID 988 wrote to memory of 1056	988	9a19ab56f524f1aaa8ec1a76f2f32bd6.exe	9a19ab56f524f1aaa8ec1a76f2f32bd6.exe
PID 988 wrote to memory of 1056	988	9a19ab56f524f1aaa8ec1a76f2f32bd6.exe	9a19ab56f524f1aaa8ec1a76f2f32bd6.exe
PID 988 wrote to memory of 1056	988	9a19ab56f524f1aaa8ec1a76f2f32bd6.exe	9a19ab56f524f1aaa8ec1a76f2f32bd6.exe
PID 988 wrote to memory of 1056	988	9a19ab56f524f1aaa8ec1a76f2f32bd6.exe	9a19ab56f524f1aaa8ec1a76f2f32bd6.exe
PID 1056 wrote to memory of 2676	1056	9a19ab56f524f1aaa8ec1a76f2f32bd6.exe	netsh.exe
PID 1056 wrote to memory of 2676	1056	9a19ab56f524f1aaa8ec1a76f2f32bd6.exe	netsh.exe
PID 1056 wrote to memory of 2676	1056	9a19ab56f524f1aaa8ec1a76f2f32bd6.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\9a19ab56f524f1aaa8ec1a76f2f32bd6.exe
"C:\Users\Admin\AppData\Local\Temp\9a19ab56f524f1aaa8ec1a76f2f32bd6.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:988

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\WWnAzxgBF" /XML "C:\Users\Admin\AppData\Local\Temp\tmp10CA.tmp"
2⤵
- Creates scheduled task(s)
PID:1468

C:\Users\Admin\AppData\Local\Temp\9a19ab56f524f1aaa8ec1a76f2f32bd6.exe
"{path}"
2⤵
- Drops file in Drivers directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1056

C:\Windows\SysWOW64\netsh.exe
"netsh" wlan show profile
3⤵
PID:2676

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

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\tmp10CA.tmp
MD5
fdbecda631ba4ad1144d538158fb1f36

SHA1
ae0cb40ae3c63d161aee746539f75da2b8055f4b

SHA256
b60c5e342d043060c823264fb424a923df5dce4aa5cf1c1d8e10d1aff373693f

SHA512
144229d20ad3131ac7512c132fee6912c778eaecb4b985d3c63b5289221617025a532655c3608d552e4045389fb1e075122a83a19e4df83192f8b1808e33c48f

Download Submit
memory/988-11-0x0000000008710000-0x00000000087A9000-memory.dmp

Filesize
612KB

Download
memory/988-6-0x0000000005270000-0x0000000005271000-memory.dmp

Filesize
4KB

Download
memory/988-3-0x0000000000900000-0x0000000000901000-memory.dmp

Filesize
4KB

Download
memory/988-7-0x00000000051F0000-0x00000000051F1000-memory.dmp

Filesize
4KB

Download
memory/988-8-0x00000000051D0000-0x00000000051D1000-memory.dmp

Filesize
4KB

Download
memory/988-9-0x00000000087B0000-0x00000000087B1000-memory.dmp

Filesize
4KB

Download
memory/988-10-0x0000000005420000-0x000000000542B000-memory.dmp

Filesize
44KB

Download
memory/988-2-0x0000000073800000-0x0000000073EEE000-memory.dmp

Filesize
6.9MB

Download
memory/988-5-0x0000000005770000-0x0000000005771000-memory.dmp

Filesize
4KB

Download
memory/1056-27-0x0000000002E71000-0x0000000002E72000-memory.dmp

Filesize
4KB

Download
memory/1056-14-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1056-15-0x000000000044CFAE-mapping.dmp

Download
memory/1056-16-0x0000000073800000-0x0000000073EEE000-memory.dmp

Filesize
6.9MB

Download
memory/1056-21-0x00000000057E0000-0x00000000057E1000-memory.dmp

Filesize
4KB

Download
memory/1056-22-0x0000000006290000-0x0000000006291000-memory.dmp

Filesize
4KB

Download
memory/1056-23-0x0000000002E70000-0x0000000002E71000-memory.dmp

Filesize
4KB

Download
memory/1468-12-0x0000000000000000-mapping.dmp

Download
memory/2676-24-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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