agenttesla | 73b8a2fd3dd6b8966abda445e9d322dea069df2a357d9dbd81f683e4c4065529

General

Target

POYTR56789900.exe
Size

802KB
MD5

2d0ad7779ec8291f001e3706a427b8ad
SHA1

904e520fbaa11abcd2906b68dfb85ecdb0069e55
SHA256

b3c8caa00c7ffb39c1602051d1f48105e223ee1da817e9b37bfea0f35e629b1b
SHA512

ac4c30e36944ea676ff4543c74f78f99b394d421933437a5202bd084875cc1b180226daf1df8f8f6c08b7c67f3c12bbb4053f6429a8337b1ea825dda32bef80a
SSDEEP

12288:v6Wq4aaE6KwyF5L0Y2D1PqLmHRc3JalaLLW+ITJ3UiEGE3Gt3FoppG/i4BoPLppz:tthEVaPqL2c3rLSTJuWcgpBoP9pz

Score

10^/10

agenttesla discovery keylogger spyware stealer trojan upx

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

Drops startup file 1 IoCs

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

Executes dropped EXE 1 IoCs

pid	Process
2280	misruling.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
16	ip-api.com

AutoIT Executable 2 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral2/memory/3580-9-0x0000000000400000-0x00000000004C2000-memory.dmp	autoit_exe
behavioral2/memory/2280-17-0x0000000000400000-0x00000000004C2000-memory.dmp	autoit_exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2280 set thread context of 2176	2280	misruling.exe	87

UPX packed file 4 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/3580-0-0x0000000000400000-0x00000000004C2000-memory.dmp	upx
behavioral2/files/0x00070000000234ea-6.dat	upx
behavioral2/memory/3580-9-0x0000000000400000-0x00000000004C2000-memory.dmp	upx
behavioral2/memory/2280-17-0x0000000000400000-0x00000000004C2000-memory.dmp	upx

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

System Information Discovery
T1082

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	misruling.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegSvcs.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	POYTR56789900.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2176	RegSvcs.exe
2176	RegSvcs.exe

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
2280	misruling.exe
2280	misruling.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2176	RegSvcs.exe

Suspicious use of FindShellTrayWindow 10 IoCs

pid	Process
3580	POYTR56789900.exe
3580	POYTR56789900.exe
3580	POYTR56789900.exe
3580	POYTR56789900.exe
3580	POYTR56789900.exe
2280	misruling.exe
2280	misruling.exe
2280	misruling.exe
2280	misruling.exe
2280	misruling.exe

Suspicious use of SendNotifyMessage 10 IoCs

pid	Process
3580	POYTR56789900.exe
3580	POYTR56789900.exe
3580	POYTR56789900.exe
3580	POYTR56789900.exe
3580	POYTR56789900.exe
2280	misruling.exe
2280	misruling.exe
2280	misruling.exe
2280	misruling.exe
2280	misruling.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 3580 wrote to memory of 2280	3580	POYTR56789900.exe	82
PID 3580 wrote to memory of 2280	3580	POYTR56789900.exe	82
PID 3580 wrote to memory of 2280	3580	POYTR56789900.exe	82
PID 2280 wrote to memory of 2176	2280	misruling.exe	87
PID 2280 wrote to memory of 2176	2280	misruling.exe	87
PID 2280 wrote to memory of 2176	2280	misruling.exe	87
PID 2280 wrote to memory of 2176	2280	misruling.exe	87

C:\Users\Admin\AppData\Local\Temp\POYTR56789900.exe
"C:\Users\Admin\AppData\Local\Temp\POYTR56789900.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:3580
- C:\Users\Admin\AppData\Local\ectosphere\misruling.exe
  "C:\Users\Admin\AppData\Local\Temp\POYTR56789900.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of WriteProcessMemory
  PID:2280
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
    "C:\Users\Admin\AppData\Local\Temp\POYTR56789900.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2176

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

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\Sheitan

Filesize
239KB

MD5
7376e3136e7a010de095c4dbfe406c9e

SHA1
a29d709083c8475af6c571c83abf11df9138ec0f

SHA256
cede6046711a80cda7b4b883b1c37d69c2188dbde29950e6ef22ddf300350db2

SHA512
977e47b8bd92587daa6ac63db640399bf9b0cc29207ce0f5083f48178aac0ac8cd2bbd3c5416a818b84df1fb82f91c6d0c4ea6f87f595f71d12230781374f703

Download Submit
C:\Users\Admin\AppData\Local\ectosphere\misruling.exe

Filesize
802KB

MD5
2d0ad7779ec8291f001e3706a427b8ad

SHA1
904e520fbaa11abcd2906b68dfb85ecdb0069e55

SHA256
b3c8caa00c7ffb39c1602051d1f48105e223ee1da817e9b37bfea0f35e629b1b

SHA512
ac4c30e36944ea676ff4543c74f78f99b394d421933437a5202bd084875cc1b180226daf1df8f8f6c08b7c67f3c12bbb4053f6429a8337b1ea825dda32bef80a

Download Submit
memory/2176-18-0x00000000749DE000-0x00000000749DF000-memory.dmp

Filesize
4KB

Download
memory/2176-19-0x00000000053B0000-0x0000000005954000-memory.dmp

Filesize
5.6MB

Download
memory/2176-26-0x00000000749D0000-0x0000000075180000-memory.dmp

Filesize
7.7MB

Download
memory/2176-25-0x00000000749DE000-0x00000000749DF000-memory.dmp

Filesize
4KB

Download
memory/2176-15-0x0000000000740000-0x0000000000782000-memory.dmp

Filesize
264KB

Download
memory/2176-24-0x00000000063D0000-0x00000000063DA000-memory.dmp

Filesize
40KB

Download
memory/2176-23-0x0000000006280000-0x00000000062D0000-memory.dmp

Filesize
320KB

Download
memory/2176-22-0x00000000061E0000-0x0000000006272000-memory.dmp

Filesize
584KB

Download
memory/2176-20-0x0000000004F00000-0x0000000004F66000-memory.dmp

Filesize
408KB

Download
memory/2176-21-0x00000000749D0000-0x0000000075180000-memory.dmp

Filesize
7.7MB

Download
memory/2280-17-0x0000000000400000-0x00000000004C2000-memory.dmp

Filesize
776KB

Download
memory/2280-13-0x0000000003FF0000-0x00000000043F0000-memory.dmp

Filesize
4.0MB

Download
memory/3580-9-0x0000000000400000-0x00000000004C2000-memory.dmp

Filesize
776KB

Download
memory/3580-0-0x0000000000400000-0x00000000004C2000-memory.dmp

Filesize
776KB

Download
memory/3580-3-0x00000000042E0000-0x00000000046E0000-memory.dmp

Filesize
4.0MB

Download

Analysis

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