agenttesla | 41ee86a60102a3221d2f8a3a1ba91567087e8f58504dcb764cc5f942af3c6a61

General

Target

catologdesign.exe
Size

441KB
MD5

ed10b06e6601040d301ed58087927a9f
SHA1

015769a2521de39c9a6f9a299ca8156c8395e187
SHA256

41ee86a60102a3221d2f8a3a1ba91567087e8f58504dcb764cc5f942af3c6a61
SHA512

e4ab8d6916c8f4dcb17a02197b7b60e40e9442132bc2385f7392a8f54c3d99170dd76c0523b0bea39673a2ca2ccc43ad80b9e8d1a52de2281ecc2f8b2fb8969f

Score

10^/10

agenttesla keylogger rezer0 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 4 IoCs

Processes:

resource	yara_rule
behavioral1/memory/980-7-0x0000000000400000-0x000000000044A000-memory.dmp	family_agenttesla
behavioral1/memory/980-8-0x0000000000445A5E-mapping.dmp	family_agenttesla
behavioral1/memory/980-9-0x0000000000400000-0x000000000044A000-memory.dmp	family_agenttesla
behavioral1/memory/980-10-0x0000000000400000-0x000000000044A000-memory.dmp	family_agenttesla

rezer0 1 IoCs

Detects ReZer0, a packer with multiple versions used in various campaigns.

rezer0

Processes:

resource	yara_rule
behavioral1/memory/784-4-0x0000000000770000-0x00000000007BC000-memory.dmp	rezer0

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:

catologdesign.exe

description pid process target process

PID 784 set thread context of 980 784 catologdesign.exe catologdesign.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

848 schtasks.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

catologdesign.exe

pid process

980 catologdesign.exe
980 catologdesign.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

catologdesign.exe

description pid process

Token: SeDebugPrivilege 980 catologdesign.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

catologdesign.exe

pid process

980 catologdesign.exe

description	pid	process	target process
PID 784 set thread context of 980	784	catologdesign.exe	catologdesign.exe

pid	process
848	schtasks.exe

pid	process
980	catologdesign.exe
980	catologdesign.exe

description	pid	process
Token: SeDebugPrivilege	980	catologdesign.exe

pid	process
980	catologdesign.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

catologdesign.exe

description	pid	process	target process
PID 784 wrote to memory of 848	784	catologdesign.exe	schtasks.exe
PID 784 wrote to memory of 848	784	catologdesign.exe	schtasks.exe
PID 784 wrote to memory of 848	784	catologdesign.exe	schtasks.exe
PID 784 wrote to memory of 848	784	catologdesign.exe	schtasks.exe
PID 784 wrote to memory of 980	784	catologdesign.exe	catologdesign.exe
PID 784 wrote to memory of 980	784	catologdesign.exe	catologdesign.exe
PID 784 wrote to memory of 980	784	catologdesign.exe	catologdesign.exe
PID 784 wrote to memory of 980	784	catologdesign.exe	catologdesign.exe
PID 784 wrote to memory of 980	784	catologdesign.exe	catologdesign.exe
PID 784 wrote to memory of 980	784	catologdesign.exe	catologdesign.exe
PID 784 wrote to memory of 980	784	catologdesign.exe	catologdesign.exe
PID 784 wrote to memory of 980	784	catologdesign.exe	catologdesign.exe
PID 784 wrote to memory of 980	784	catologdesign.exe	catologdesign.exe

C:\Users\Admin\AppData\Local\Temp\catologdesign.exe
"C:\Users\Admin\AppData\Local\Temp\catologdesign.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:784

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\CZTjLVzk" /XML "C:\Users\Admin\AppData\Local\Temp\tmp21D3.tmp"
2⤵
- Creates scheduled task(s)
PID:848

C:\Users\Admin\AppData\Local\Temp\catologdesign.exe
"{path}"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:980

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\tmp21D3.tmp
MD5
c198daedbe9a302df4b75249477e5fba

SHA1
9224185a858da07e2952105a27b6ac5ff489d1dc

SHA256
22a114f77bedc68824817c3658f8e14b71c86462c39da66f99b77e25e91ab40d

SHA512
d6fb7b5badd3cfc17b815fd48c13a1341a2e37fce34d695a50049d5687ccc3c09eebfa591ebf8335781aff400c0cb607d921f62f083e2896f59f9e487f9de123

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memory/784-0-0x00000000748A0000-0x0000000074F8E000-memory.dmp

Filesize
6.9MB

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memory/784-1-0x0000000001140000-0x0000000001141000-memory.dmp

Filesize
4KB

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memory/784-3-0x0000000000330000-0x000000000033F000-memory.dmp

Filesize
60KB

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memory/784-4-0x0000000000770000-0x00000000007BC000-memory.dmp

Filesize
304KB

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memory/848-5-0x0000000000000000-mapping.dmp

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memory/980-7-0x0000000000400000-0x000000000044A000-memory.dmp

Filesize
296KB

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memory/980-8-0x0000000000445A5E-mapping.dmp

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memory/980-9-0x0000000000400000-0x000000000044A000-memory.dmp

Filesize
296KB

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memory/980-10-0x0000000000400000-0x000000000044A000-memory.dmp

Filesize
296KB

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memory/980-11-0x00000000748A0000-0x0000000074F8E000-memory.dmp

Filesize
6.9MB

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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