agenttesla | bf6acf9276de65e04d6317c7c651a9b2ec3aa60528421fbb585ab48bfda428b2

General

Target

PO#3459.jpg.exe
Size

703KB
MD5

518090e39e06e5f3efcebcdf9404183d
SHA1

c47e0de5fe58346e3575aab0bbb8af3a638f04c6
SHA256

006e2d9f385a7c4d88299832906bf975a311e61ad24fb8b5b1130a9f308cb8c7
SHA512

ea436927dfd75d312e96cd8afcd7e8e274d31f9c04d72d1742a323a1a65417b59a04fffd720ed4655730b34cfb48d78d4fa37f3f5e0f3652f003e720dc13cb5b

Score

10^/10

agenttesla keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.kaysarplastik.com
Port:
587
Username:
[email protected]
Password:
abdullah123

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/836-140-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla

Executes dropped EXE 2 IoCs

Processes:

lux.exeInstallUtil.exe

pid process

3808 lux.exe
836 InstallUtil.exe

pid	process
3808	lux.exe
836	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:

PO#3459.jpg.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Control Panel\International\Geo\Nation	PO#3459.jpg.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-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Windows\CurrentVersion\Run	reg.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\lux = "C:\\Windows\\system32\\pcalua.exe -a C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\lux.exe"	reg.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

lux.exe

description pid process target process

PID 3808 set thread context of 836 3808 lux.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 3808 set thread context of 836	3808	lux.exe	InstallUtil.exe

Suspicious behavior: EnumeratesProcesses 29 IoCs

Processes:

PO#3459.jpg.exelux.exeInstallUtil.exe

pid	process
3736	PO#3459.jpg.exe
3736	PO#3459.jpg.exe
3736	PO#3459.jpg.exe
3736	PO#3459.jpg.exe
3736	PO#3459.jpg.exe
3736	PO#3459.jpg.exe
3736	PO#3459.jpg.exe
3736	PO#3459.jpg.exe
3736	PO#3459.jpg.exe
3736	PO#3459.jpg.exe
3736	PO#3459.jpg.exe
3736	PO#3459.jpg.exe
3736	PO#3459.jpg.exe
3736	PO#3459.jpg.exe
3736	PO#3459.jpg.exe
3736	PO#3459.jpg.exe
3736	PO#3459.jpg.exe
3736	PO#3459.jpg.exe
3736	PO#3459.jpg.exe
3736	PO#3459.jpg.exe
3736	PO#3459.jpg.exe
3736	PO#3459.jpg.exe
3736	PO#3459.jpg.exe
3736	PO#3459.jpg.exe
3808	lux.exe
3808	lux.exe
3808	lux.exe
836	InstallUtil.exe
836	InstallUtil.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

PO#3459.jpg.exelux.exeInstallUtil.exe

description pid process

Token: SeDebugPrivilege 3736 PO#3459.jpg.exe
Token: SeDebugPrivilege 3808 lux.exe
Token: SeDebugPrivilege 836 InstallUtil.exe

description	pid	process
Token: SeDebugPrivilege	3736	PO#3459.jpg.exe
Token: SeDebugPrivilege	3808	lux.exe
Token: SeDebugPrivilege	836	InstallUtil.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

PO#3459.jpg.execmd.exelux.exe

description	pid	process	target process
PID 3736 wrote to memory of 4692	3736	PO#3459.jpg.exe	cmd.exe
PID 3736 wrote to memory of 4692	3736	PO#3459.jpg.exe	cmd.exe
PID 3736 wrote to memory of 4692	3736	PO#3459.jpg.exe	cmd.exe
PID 4692 wrote to memory of 4512	4692	cmd.exe	reg.exe
PID 4692 wrote to memory of 4512	4692	cmd.exe	reg.exe
PID 4692 wrote to memory of 4512	4692	cmd.exe	reg.exe
PID 3736 wrote to memory of 3808	3736	PO#3459.jpg.exe	lux.exe
PID 3736 wrote to memory of 3808	3736	PO#3459.jpg.exe	lux.exe
PID 3736 wrote to memory of 3808	3736	PO#3459.jpg.exe	lux.exe
PID 3808 wrote to memory of 836	3808	lux.exe	InstallUtil.exe
PID 3808 wrote to memory of 836	3808	lux.exe	InstallUtil.exe
PID 3808 wrote to memory of 836	3808	lux.exe	InstallUtil.exe
PID 3808 wrote to memory of 836	3808	lux.exe	InstallUtil.exe
PID 3808 wrote to memory of 836	3808	lux.exe	InstallUtil.exe
PID 3808 wrote to memory of 836	3808	lux.exe	InstallUtil.exe
PID 3808 wrote to memory of 836	3808	lux.exe	InstallUtil.exe
PID 3808 wrote to memory of 836	3808	lux.exe	InstallUtil.exe

C:\Users\Admin\AppData\Local\Temp\PO#3459.jpg.exe
"C:\Users\Admin\AppData\Local\Temp\PO#3459.jpg.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3736
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c REG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run /f /v lux /t REG_SZ /d C:\Windows\system32\pcalua.exe" -a C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\lux.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4692
- - C:\Windows\SysWOW64\reg.exe
    REG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run /f /v lux /t REG_SZ /d C:\Windows\system32\pcalua.exe" -a C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\lux.exe"
    3⤵
    - Adds Run key to start application
    PID:4512
- C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\lux.exe
  "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\lux.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3808
- - 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
    PID:836

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

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\Microsoft\Windows\Templates\lux.exe

Filesize
703KB

MD5
518090e39e06e5f3efcebcdf9404183d

SHA1
c47e0de5fe58346e3575aab0bbb8af3a638f04c6

SHA256
006e2d9f385a7c4d88299832906bf975a311e61ad24fb8b5b1130a9f308cb8c7

SHA512
ea436927dfd75d312e96cd8afcd7e8e274d31f9c04d72d1742a323a1a65417b59a04fffd720ed4655730b34cfb48d78d4fa37f3f5e0f3652f003e720dc13cb5b

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\lux.exe

Filesize
703KB

MD5
518090e39e06e5f3efcebcdf9404183d

SHA1
c47e0de5fe58346e3575aab0bbb8af3a638f04c6

SHA256
006e2d9f385a7c4d88299832906bf975a311e61ad24fb8b5b1130a9f308cb8c7

SHA512
ea436927dfd75d312e96cd8afcd7e8e274d31f9c04d72d1742a323a1a65417b59a04fffd720ed4655730b34cfb48d78d4fa37f3f5e0f3652f003e720dc13cb5b

Download Submit
memory/836-143-0x0000000005520000-0x00000000055BC000-memory.dmp

Filesize
624KB

Download
memory/836-140-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/836-139-0x0000000000000000-mapping.dmp

Download
memory/3736-133-0x0000000006150000-0x0000000006194000-memory.dmp

Filesize
272KB

Download
memory/3736-130-0x0000000000E10000-0x0000000000EC6000-memory.dmp

Filesize
728KB

Download
memory/3736-132-0x0000000006060000-0x00000000060F2000-memory.dmp

Filesize
584KB

Download
memory/3736-131-0x0000000006530000-0x0000000006AD4000-memory.dmp

Filesize
5.6MB

Download
memory/3808-136-0x0000000000000000-mapping.dmp

Download
memory/4512-135-0x0000000000000000-mapping.dmp

Download
memory/4692-134-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads