agenttesla | bf6acf9276de65e04d6317c7c651a9b2ec3aa60528421fbb585ab48bfda428b2

Analysis

max time kernel
135s
max time network
50s
platform
windows7_x64
resource
win7-20220414-en
submitted
20/05/2022, 23:51

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General

Target
PO#3459.jpg.exe
Size 703KB
Sample220520-3we2waceam
SHA256 006e2d9f385a7c4d88299832906bf975a311e61ad24fb8b5b1130a9f308cb8c7
MD5 518090e39e06e5f3efcebcdf9404183d
SHA1 c47e0de5fe58346e3575aab0bbb8af3a638f04c6
SHA512 ea436927dfd75d312e96cd8afcd7e8e274d31f9c04d72d1742a323a1a65417b59a04fffd720ed4655730b34cfb48d78d4fa37f3f5e0f3652f003e720dc13cb5b
MD5 SHA1 SHA512

Score

10^/10

agenttesla agilenet 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 6 IoCs

resource	yara_rule
behavioral1/memory/1532-70-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1532-71-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1532-72-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1532-73-0x000000000044705E-mapping.dmp	family_agenttesla
behavioral1/memory/1532-76-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1532-78-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla

Executes dropped EXE 2 IoCs

pid	Process
1720	lux.exe
1532	InstallUtil.exe

Loads dropped DLL 2 IoCs

pid	Process
892	PO#3459.jpg.exe
1720	lux.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

resource	yara_rule
behavioral1/memory/892-56-0x00000000005E0000-0x00000000005EA000-memory.dmp	agile_net

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows\CurrentVersion\Run	reg.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\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

description	pid	Process	procid_target
PID 1720 set thread context of 1532	1720	lux.exe	31

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
892	PO#3459.jpg.exe
892	PO#3459.jpg.exe
1720	lux.exe
1720	lux.exe
1720	lux.exe
1532	InstallUtil.exe
1532	InstallUtil.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	892	PO#3459.jpg.exe
Token: SeDebugPrivilege	1720	lux.exe
Token: SeDebugPrivilege	1532	InstallUtil.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 892 wrote to memory of 2044	892	PO#3459.jpg.exe	27
PID 892 wrote to memory of 2044	892	PO#3459.jpg.exe	27
PID 892 wrote to memory of 2044	892	PO#3459.jpg.exe	27
PID 892 wrote to memory of 2044	892	PO#3459.jpg.exe	27
PID 2044 wrote to memory of 2000	2044	cmd.exe	29
PID 2044 wrote to memory of 2000	2044	cmd.exe	29
PID 2044 wrote to memory of 2000	2044	cmd.exe	29
PID 2044 wrote to memory of 2000	2044	cmd.exe	29
PID 892 wrote to memory of 1720	892	PO#3459.jpg.exe	30
PID 892 wrote to memory of 1720	892	PO#3459.jpg.exe	30
PID 892 wrote to memory of 1720	892	PO#3459.jpg.exe	30
PID 892 wrote to memory of 1720	892	PO#3459.jpg.exe	30
PID 1720 wrote to memory of 1532	1720	lux.exe	31
PID 1720 wrote to memory of 1532	1720	lux.exe	31
PID 1720 wrote to memory of 1532	1720	lux.exe	31
PID 1720 wrote to memory of 1532	1720	lux.exe	31
PID 1720 wrote to memory of 1532	1720	lux.exe	31
PID 1720 wrote to memory of 1532	1720	lux.exe	31
PID 1720 wrote to memory of 1532	1720	lux.exe	31
PID 1720 wrote to memory of 1532	1720	lux.exe	31
PID 1720 wrote to memory of 1532	1720	lux.exe	31
PID 1720 wrote to memory of 1532	1720	lux.exe	31
PID 1720 wrote to memory of 1532	1720	lux.exe	31
PID 1720 wrote to memory of 1532	1720	lux.exe	31

C:\Users\Admin\AppData\Local\Temp\PO#3459.jpg.exe
"C:\Users\Admin\AppData\Local\Temp\PO#3459.jpg.exe"
1⤵
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:892
- 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:2044
- - 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:2000
- C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\lux.exe
  "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\lux.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1720
- - 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:1532

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

InstallUtil.exe

Path C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe
Size 40KB
SHA256 e56a7e5d3ab9675555e2897fc3faa2dd9265008a4967a7d54030ab8184d2d38f
MD5 91c9ae9c9a17a9db5e08b120e668c74c
SHA1 50770954c1ceb0bb6f1d5d3f2de2a0a065773723
SHA512 ca504af192e3318359d4742a2ef26ae1b5d040a4f9942782e02549a310158d5d5dbf919b4c748c31ee609d2046bd23ee0c22712891c86ae4a1e3a58c6e67647e
SSDEEP 384:etpFVLK0MsihB9VKS7xdguKKJ9Yl6dnPU3SERztmbqCJstdMardz/JikPZ+xPZTf:yBMs2Sqd9p6Iq8R/2dVixLeUp
MD5 SHA1 SHA512 SSDEEP

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InstallUtil.exe

Path C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe
Size 40KB
SHA256 e56a7e5d3ab9675555e2897fc3faa2dd9265008a4967a7d54030ab8184d2d38f
MD5 91c9ae9c9a17a9db5e08b120e668c74c
SHA1 50770954c1ceb0bb6f1d5d3f2de2a0a065773723
SHA512 ca504af192e3318359d4742a2ef26ae1b5d040a4f9942782e02549a310158d5d5dbf919b4c748c31ee609d2046bd23ee0c22712891c86ae4a1e3a58c6e67647e
SSDEEP 384:etpFVLK0MsihB9VKS7xdguKKJ9Yl6dnPU3SERztmbqCJstdMardz/JikPZ+xPZTf:yBMs2Sqd9p6Iq8R/2dVixLeUp
MD5 SHA1 SHA512 SSDEEP

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lux.exe

Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\lux.exe
Size 703KB
SHA256 006e2d9f385a7c4d88299832906bf975a311e61ad24fb8b5b1130a9f308cb8c7
MD5 518090e39e06e5f3efcebcdf9404183d
SHA1 c47e0de5fe58346e3575aab0bbb8af3a638f04c6
SHA512 ea436927dfd75d312e96cd8afcd7e8e274d31f9c04d72d1742a323a1a65417b59a04fffd720ed4655730b34cfb48d78d4fa37f3f5e0f3652f003e720dc13cb5b
SSDEEP 12288:10MfUaGWF7psrDXN95YiQM0b8l65gyvtWXVfvRkc0:138Tjd95YiQzbPlt
MD5 SHA1 SHA512 SSDEEP

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lux.exe

Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\lux.exe
Size 703KB
SHA256 006e2d9f385a7c4d88299832906bf975a311e61ad24fb8b5b1130a9f308cb8c7
MD5 518090e39e06e5f3efcebcdf9404183d
SHA1 c47e0de5fe58346e3575aab0bbb8af3a638f04c6
SHA512 ea436927dfd75d312e96cd8afcd7e8e274d31f9c04d72d1742a323a1a65417b59a04fffd720ed4655730b34cfb48d78d4fa37f3f5e0f3652f003e720dc13cb5b
SSDEEP 12288:10MfUaGWF7psrDXN95YiQM0b8l65gyvtWXVfvRkc0:138Tjd95YiQzbPlt
MD5 SHA1 SHA512 SSDEEP

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InstallUtil.exe

Path \Users\Admin\AppData\Local\Temp\InstallUtil.exe
Size 40KB
SHA256 e56a7e5d3ab9675555e2897fc3faa2dd9265008a4967a7d54030ab8184d2d38f
MD5 91c9ae9c9a17a9db5e08b120e668c74c
SHA1 50770954c1ceb0bb6f1d5d3f2de2a0a065773723
SHA512 ca504af192e3318359d4742a2ef26ae1b5d040a4f9942782e02549a310158d5d5dbf919b4c748c31ee609d2046bd23ee0c22712891c86ae4a1e3a58c6e67647e
SSDEEP 384:etpFVLK0MsihB9VKS7xdguKKJ9Yl6dnPU3SERztmbqCJstdMardz/JikPZ+xPZTf:yBMs2Sqd9p6Iq8R/2dVixLeUp
MD5 SHA1 SHA512 SSDEEP

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lux.exe

Path \Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\lux.exe
Size 703KB
SHA256 006e2d9f385a7c4d88299832906bf975a311e61ad24fb8b5b1130a9f308cb8c7
MD5 518090e39e06e5f3efcebcdf9404183d
SHA1 c47e0de5fe58346e3575aab0bbb8af3a638f04c6
SHA512 ea436927dfd75d312e96cd8afcd7e8e274d31f9c04d72d1742a323a1a65417b59a04fffd720ed4655730b34cfb48d78d4fa37f3f5e0f3652f003e720dc13cb5b
SSDEEP 12288:10MfUaGWF7psrDXN95YiQM0b8l65gyvtWXVfvRkc0:138Tjd95YiQzbPlt
MD5 SHA1 SHA512 SSDEEP

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memory/892-55-0x0000000000580000-0x000000000059E000-memory.dmp

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memory/892-56-0x00000000005E0000-0x00000000005EA000-memory.dmp

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memory/892-54-0x0000000001220000-0x00000000012D6000-memory.dmp

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memory/1532-70-0x0000000000400000-0x000000000044C000-memory.dmp

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memory/1532-71-0x0000000000400000-0x000000000044C000-memory.dmp

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memory/1532-79-0x00000000763B1000-0x00000000763B3000-memory.dmp

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memory/1532-78-0x0000000000400000-0x000000000044C000-memory.dmp

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memory/1532-67-0x0000000000400000-0x000000000044C000-memory.dmp

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memory/1532-68-0x0000000000400000-0x000000000044C000-memory.dmp

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memory/1532-76-0x0000000000400000-0x000000000044C000-memory.dmp

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memory/1532-72-0x0000000000400000-0x000000000044C000-memory.dmp

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memory/1720-64-0x0000000000620000-0x000000000062A000-memory.dmp

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memory/1720-63-0x0000000000E50000-0x0000000000F06000-memory.dmp

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