agenttesla | cca19643de6d16a67f7ecb13cd2bb8f9ed34dc352eb967250c3bd5c8bd09329c

General

Target

cca19643de6d16a67f7ecb13cd2bb8f9ed34dc352eb967250c3bd5c8bd09329c.exe
Size

1.3MB
MD5

680fd2015b9a8df73e541faf60e3cff2
SHA1

da9b83c61b06ce50083d5a765607ebf7164e8db9
SHA256

cca19643de6d16a67f7ecb13cd2bb8f9ed34dc352eb967250c3bd5c8bd09329c
SHA512

93bc0131b55deb14f66689f7f1010542de5e3550a0e3d1bf854528c7d6c7c09266bfb657d8f88152d46ede8ac942297f0e2bf3627ef462983c7e392621b7c74a
SSDEEP

24576:wqDEvCTbMWu7rQYlBQcBiT6rpFd+zmG0n356C0IpZnJGo:wTvC/MTQYxsWPkzmF3tJ

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\cunila.vbs	cunila.exe

Executes dropped EXE 1 IoCs

pid	Process
2936	cunila.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
15	ip-api.com

AutoIT Executable 3 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral2/memory/4744-0-0x0000000000010000-0x000000000016B000-memory.dmp	autoit_exe
behavioral2/files/0x000a000000023bac-6.dat	autoit_exe
behavioral2/memory/2936-7-0x0000000000360000-0x00000000004BB000-memory.dmp	autoit_exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2936 set thread context of 1084	2936	cunila.exe	84

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2532	2936	WerFault.exe	83

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	cca19643de6d16a67f7ecb13cd2bb8f9ed34dc352eb967250c3bd5c8bd09329c.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cunila.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegSvcs.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1084	RegSvcs.exe
1084	RegSvcs.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
2936	cunila.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1084	RegSvcs.exe

Suspicious use of FindShellTrayWindow 4 IoCs

pid	Process
4744	cca19643de6d16a67f7ecb13cd2bb8f9ed34dc352eb967250c3bd5c8bd09329c.exe
4744	cca19643de6d16a67f7ecb13cd2bb8f9ed34dc352eb967250c3bd5c8bd09329c.exe
2936	cunila.exe
2936	cunila.exe

Suspicious use of SendNotifyMessage 4 IoCs

pid	Process
4744	cca19643de6d16a67f7ecb13cd2bb8f9ed34dc352eb967250c3bd5c8bd09329c.exe
4744	cca19643de6d16a67f7ecb13cd2bb8f9ed34dc352eb967250c3bd5c8bd09329c.exe
2936	cunila.exe
2936	cunila.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 4744 wrote to memory of 2936	4744	cca19643de6d16a67f7ecb13cd2bb8f9ed34dc352eb967250c3bd5c8bd09329c.exe	83
PID 4744 wrote to memory of 2936	4744	cca19643de6d16a67f7ecb13cd2bb8f9ed34dc352eb967250c3bd5c8bd09329c.exe	83
PID 4744 wrote to memory of 2936	4744	cca19643de6d16a67f7ecb13cd2bb8f9ed34dc352eb967250c3bd5c8bd09329c.exe	83
PID 2936 wrote to memory of 1084	2936	cunila.exe	84
PID 2936 wrote to memory of 1084	2936	cunila.exe	84
PID 2936 wrote to memory of 1084	2936	cunila.exe	84
PID 2936 wrote to memory of 1084	2936	cunila.exe	84

C:\Users\Admin\AppData\Local\Temp\cca19643de6d16a67f7ecb13cd2bb8f9ed34dc352eb967250c3bd5c8bd09329c.exe
"C:\Users\Admin\AppData\Local\Temp\cca19643de6d16a67f7ecb13cd2bb8f9ed34dc352eb967250c3bd5c8bd09329c.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:4744
- C:\Users\Admin\AppData\Local\enterogenous\cunila.exe
  "C:\Users\Admin\AppData\Local\Temp\cca19643de6d16a67f7ecb13cd2bb8f9ed34dc352eb967250c3bd5c8bd09329c.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:2936
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
    "C:\Users\Admin\AppData\Local\Temp\cca19643de6d16a67f7ecb13cd2bb8f9ed34dc352eb967250c3bd5c8bd09329c.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1084
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2936 -s 676
    3⤵
    - Program crash
    PID:2532

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2936 -ip 2936
1⤵
PID:2428

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\gunfights

Filesize
239KB

MD5
ef21e86ae3a5a36104d1383c061b83e7

SHA1
53823269083797ead7f1230be529d8c543d2001d

SHA256
16c630d5dc716eeb21c6979c2e19e8d72a5e7b742e1b10aaab0d0d0f38afd94b

SHA512
a980df1fcfbf88a80d28cf758fb9933c0b223246b5c856e1728c872b422925513fa1cb34ecf73b43d887e34a3feedea446dd912d31a7c1b5c8603d8e68962f42

Download Submit
C:\Users\Admin\AppData\Local\enterogenous\cunila.exe

Filesize
1.3MB

MD5
680fd2015b9a8df73e541faf60e3cff2

SHA1
da9b83c61b06ce50083d5a765607ebf7164e8db9

SHA256
cca19643de6d16a67f7ecb13cd2bb8f9ed34dc352eb967250c3bd5c8bd09329c

SHA512
93bc0131b55deb14f66689f7f1010542de5e3550a0e3d1bf854528c7d6c7c09266bfb657d8f88152d46ede8ac942297f0e2bf3627ef462983c7e392621b7c74a

Download Submit
memory/1084-16-0x0000000005510000-0x0000000005AB4000-memory.dmp

Filesize
5.6MB

Download
memory/1084-17-0x0000000005140000-0x00000000051A6000-memory.dmp

Filesize
408KB

Download
memory/1084-23-0x0000000073F00000-0x00000000746B0000-memory.dmp

Filesize
7.7MB

Download
memory/1084-22-0x0000000073F0E000-0x0000000073F0F000-memory.dmp

Filesize
4KB

Download
memory/1084-14-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1084-15-0x0000000073F0E000-0x0000000073F0F000-memory.dmp

Filesize
4KB

Download
memory/1084-21-0x00000000064D0000-0x00000000064DA000-memory.dmp

Filesize
40KB

Download
memory/1084-20-0x0000000006540000-0x00000000065D2000-memory.dmp

Filesize
584KB

Download
memory/1084-18-0x0000000073F00000-0x00000000746B0000-memory.dmp

Filesize
7.7MB

Download
memory/1084-19-0x0000000006450000-0x00000000064A0000-memory.dmp

Filesize
320KB

Download
memory/2936-7-0x0000000000360000-0x00000000004BB000-memory.dmp

Filesize
1.4MB

Download
memory/2936-12-0x0000000000F00000-0x0000000001300000-memory.dmp

Filesize
4.0MB

Download
memory/4744-0-0x0000000000010000-0x000000000016B000-memory.dmp

Filesize
1.4MB

Download
memory/4744-3-0x00000000015F0000-0x00000000019F0000-memory.dmp

Filesize
4.0MB

Download

Analysis

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