agenttesla | 35c894c4142cf4d35b922afcee66e1c1d1feb7803ff904371c3efc38d6d2373b

General

Target

35c894c4142cf4d35b922afcee66e1c1d1feb7803ff904371c3efc38d6d2373b.exe
Size

1.0MB
MD5

fe4cec9327984d46198551c2ed2854b4
SHA1

99a35b409fc5828a8fdbdb19a7c08002d90b7c77
SHA256

35c894c4142cf4d35b922afcee66e1c1d1feb7803ff904371c3efc38d6d2373b
SHA512

41f03a6fa5ca4f77fc008c33836f542dff1f85cc8743c28a7501a281e81fdcc5a6ba8a74f0d220b9f63dd25ee801f751bacd5936ef23efcd046bdcd46e92bd78
SSDEEP

24576:Mu6J33O0c+JY5UZ+XC0kGso6Fa+zSgtZ8jyYj6lWY:Wu0c++OCvkGs9Fa+zSgtzQnY

Score

10^/10

agenttesla discovery keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: ftp
Host:
ftp://ftp.antoniomayol.com:21
Port:
21
Username:
[email protected]
Password:
cMhKDQUk1{;%

Signatures

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

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\phytographic.vbs	phytographic.exe

Executes dropped EXE 1 IoCs

pid	Process
3228	phytographic.exe

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
27	ip-api.com

AutoIT Executable 1 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral2/files/0x000300000001e18e-9.dat	autoit_exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3228 set thread context of 2824	3228	phytographic.exe	93

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegSvcs.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	35c894c4142cf4d35b922afcee66e1c1d1feb7803ff904371c3efc38d6d2373b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	phytographic.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2824	RegSvcs.exe
2824	RegSvcs.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
3228	phytographic.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2824	RegSvcs.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 4232 wrote to memory of 3228	4232	35c894c4142cf4d35b922afcee66e1c1d1feb7803ff904371c3efc38d6d2373b.exe	91
PID 4232 wrote to memory of 3228	4232	35c894c4142cf4d35b922afcee66e1c1d1feb7803ff904371c3efc38d6d2373b.exe	91
PID 4232 wrote to memory of 3228	4232	35c894c4142cf4d35b922afcee66e1c1d1feb7803ff904371c3efc38d6d2373b.exe	91
PID 3228 wrote to memory of 2824	3228	phytographic.exe	93
PID 3228 wrote to memory of 2824	3228	phytographic.exe	93
PID 3228 wrote to memory of 2824	3228	phytographic.exe	93
PID 3228 wrote to memory of 2824	3228	phytographic.exe	93

C:\Users\Admin\AppData\Local\Temp\35c894c4142cf4d35b922afcee66e1c1d1feb7803ff904371c3efc38d6d2373b.exe
"C:\Users\Admin\AppData\Local\Temp\35c894c4142cf4d35b922afcee66e1c1d1feb7803ff904371c3efc38d6d2373b.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4232
- C:\Users\Admin\AppData\Local\nasal\phytographic.exe
  "C:\Users\Admin\AppData\Local\Temp\35c894c4142cf4d35b922afcee66e1c1d1feb7803ff904371c3efc38d6d2373b.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:3228
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
    "C:\Users\Admin\AppData\Local\Temp\35c894c4142cf4d35b922afcee66e1c1d1feb7803ff904371c3efc38d6d2373b.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2824

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\croc

Filesize
239KB

MD5
920ffd3e9e2d75e56c156eda57177436

SHA1
07fb3edbb14e69955805e290e0765837ac8a0546

SHA256
290d3e84f95f5e2f90d803ff9c3f1411fc90298b65967c29f57a3486d9656c29

SHA512
da75404ce83831b0ebb640ff6c0e38162fcfac6448bb4e41d94f9def9b87a9042963c2003fd31ce7e7ed2bf3c39fe911d57fcdda136554b2c686ebbc1a458731

Download Submit
C:\Users\Admin\AppData\Local\nasal\phytographic.exe

Filesize
1.0MB

MD5
fe4cec9327984d46198551c2ed2854b4

SHA1
99a35b409fc5828a8fdbdb19a7c08002d90b7c77

SHA256
35c894c4142cf4d35b922afcee66e1c1d1feb7803ff904371c3efc38d6d2373b

SHA512
41f03a6fa5ca4f77fc008c33836f542dff1f85cc8743c28a7501a281e81fdcc5a6ba8a74f0d220b9f63dd25ee801f751bacd5936ef23efcd046bdcd46e92bd78

Download Submit
memory/2824-25-0x00000000066F0000-0x0000000006782000-memory.dmp

Filesize
584KB

Download
memory/2824-20-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2824-21-0x000000007542E000-0x000000007542F000-memory.dmp

Filesize
4KB

Download
memory/2824-22-0x00000000058C0000-0x0000000005E64000-memory.dmp

Filesize
5.6MB

Download
memory/2824-23-0x0000000005500000-0x0000000005566000-memory.dmp

Filesize
408KB

Download
memory/2824-24-0x0000000075420000-0x0000000075BD0000-memory.dmp

Filesize
7.7MB

Download
memory/2824-26-0x0000000006790000-0x00000000067E0000-memory.dmp

Filesize
320KB

Download
memory/2824-27-0x00000000067F0000-0x00000000067FA000-memory.dmp

Filesize
40KB

Download
memory/2824-28-0x000000007542E000-0x000000007542F000-memory.dmp

Filesize
4KB

Download
memory/2824-29-0x0000000075420000-0x0000000075BD0000-memory.dmp

Filesize
7.7MB

Download
memory/3228-18-0x0000000001510000-0x0000000001910000-memory.dmp

Filesize
4.0MB

Download
memory/4232-6-0x0000000001870000-0x0000000001C70000-memory.dmp

Filesize
4.0MB

Download

Analysis

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