agenttesla | b9ac9a6dc4bce3231fc93ea237a4ab5251359e2de9d1beae7c49d7b2fafa9d93

General

Target

09000000090900.exe
Size

621KB
MD5

d4cad253b742d15c3ea69277217d231e
SHA1

37e71b04d5e59eb8e8ab34cf7d804b859602e644
SHA256

f6213927e615e82229f62b234b3ae3ae6466a01c741f62413a5c926ea59f14ea
SHA512

9d7bdd6ff2b3d520e17f5c7b1903a54cc63ab020a575e98b7dbb31956e8dab066a58cf53a0551a692f9b7ce28c8c57bf5d04ce3b8730b2a9cae94865c193a26b

Score

10^/10

agenttesla keylogger spyware stealer trojan

Malware Config

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/4480-130-0x0000000000780000-0x0000000000820000-memory.dmp	family_agenttesla
behavioral2/memory/4832-136-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla

Executes dropped EXE 1 IoCs

Processes:

InstallUtil.exe

pid process

4832 InstallUtil.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
Suspicious use of SetThreadContext 1 IoCs

Processes:

09000000090900.exe

description pid process target process

PID 4480 set thread context of 4832 4480 09000000090900.exe InstallUtil.exe
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

224 4832 WerFault.exe InstallUtil.exe
Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

09000000090900.exeInstallUtil.exe

pid process

4480 09000000090900.exe
4480 09000000090900.exe
4480 09000000090900.exe
4832 InstallUtil.exe
4832 InstallUtil.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

09000000090900.exeInstallUtil.exe

description pid process

Token: SeDebugPrivilege 4480 09000000090900.exe
Token: SeDebugPrivilege 4832 InstallUtil.exe

pid	process
4832	InstallUtil.exe

description	pid	process	target process
PID 4480 set thread context of 4832	4480	09000000090900.exe	InstallUtil.exe

pid	pid_target	process	target process
224	4832	WerFault.exe	InstallUtil.exe

pid	process
4480	09000000090900.exe
4480	09000000090900.exe
4480	09000000090900.exe
4832	InstallUtil.exe
4832	InstallUtil.exe

description	pid	process
Token: SeDebugPrivilege	4480	09000000090900.exe
Token: SeDebugPrivilege	4832	InstallUtil.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

09000000090900.exe

description	pid	process	target process
PID 4480 wrote to memory of 4832	4480	09000000090900.exe	InstallUtil.exe
PID 4480 wrote to memory of 4832	4480	09000000090900.exe	InstallUtil.exe
PID 4480 wrote to memory of 4832	4480	09000000090900.exe	InstallUtil.exe
PID 4480 wrote to memory of 4832	4480	09000000090900.exe	InstallUtil.exe
PID 4480 wrote to memory of 4832	4480	09000000090900.exe	InstallUtil.exe
PID 4480 wrote to memory of 4832	4480	09000000090900.exe	InstallUtil.exe
PID 4480 wrote to memory of 4832	4480	09000000090900.exe	InstallUtil.exe
PID 4480 wrote to memory of 4832	4480	09000000090900.exe	InstallUtil.exe

C:\Users\Admin\AppData\Local\Temp\09000000090900.exe
"C:\Users\Admin\AppData\Local\Temp\09000000090900.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4480
- C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe
  "C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4832
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4832 -s 1548
    3⤵
    - Program crash
    PID:224

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 200 -p 4832 -ip 4832
1⤵
PID:816

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

3

T1081

Discovery

Lateral Movement

Collection

Data from Local System

3

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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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
memory/4480-130-0x0000000000780000-0x0000000000820000-memory.dmp

Filesize
640KB

Download
memory/4480-131-0x0000000005520000-0x0000000005AC4000-memory.dmp

Filesize
5.6MB

Download
memory/4480-132-0x0000000005070000-0x0000000005102000-memory.dmp

Filesize
584KB

Download
memory/4480-133-0x0000000005DA0000-0x0000000005DE4000-memory.dmp

Filesize
272KB

Download
memory/4480-134-0x0000000006920000-0x0000000006942000-memory.dmp

Filesize
136KB

Download
memory/4832-135-0x0000000000000000-mapping.dmp

Download
memory/4832-136-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/4832-139-0x0000000005330000-0x00000000053CC000-memory.dmp

Filesize
624KB

Download
memory/4832-140-0x0000000005FD0000-0x0000000006036000-memory.dmp

Filesize
408KB

Download
memory/4832-141-0x0000000006830000-0x0000000006880000-memory.dmp

Filesize
320KB

Download

Analysis

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