agenttesla | cb8e8d185adfffe272bafb00ef1000724beac1e478fba3e50682ac0c2300d0bc

General

Target

cb8e8d185adfffe272bafb00ef1000724beac1e478fba3e50682ac0c2300d0bc.exe
Size

1.1MB
MD5

30ec04c01f8fc2f669a92285422b8ac7
SHA1

65ea24d2c0bf10575216e4e89e77d304c9d900d7
SHA256

cb8e8d185adfffe272bafb00ef1000724beac1e478fba3e50682ac0c2300d0bc
SHA512

ca647c33c90417ed3d0d7a7c72bcec075ec28fd89462c140e312bd72c196f0a8c1db597c3db9518bef49b7291e7e35d03058c594ec683d78bf4cfa592195414a
SSDEEP

24576:ffmMv6Ckr7Mny5QLPnvM+00kNYUozd15i:f3v+7/5QLvvM+00TUop1c

Score

10^/10

agenttesla discovery keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.starmech.net
Port:
587
Username:
[email protected]
Password:
nics123
Email To:
[email protected]

Signatures

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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\BjTxJte = "C:\\Users\\Admin\\AppData\\Roaming\\BjTxJte\\BjTxJte.exe"	RegSvcs.exe

Looks up external IP address via web service 2 IoCs

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

flow	ioc
18	api.ipify.org
17	api.ipify.org

AutoIT Executable 1 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral2/memory/2500-2-0x0000000004330000-0x0000000004730000-memory.dmp	autoit_exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2500 set thread context of 4404	2500	cb8e8d185adfffe272bafb00ef1000724beac1e478fba3e50682ac0c2300d0bc.exe	85

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
5060	2500	WerFault.exe	81

System Location Discovery: System Language Discovery 1 TTPs 2 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	cb8e8d185adfffe272bafb00ef1000724beac1e478fba3e50682ac0c2300d0bc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegSvcs.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4404	RegSvcs.exe
4404	RegSvcs.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
2500	cb8e8d185adfffe272bafb00ef1000724beac1e478fba3e50682ac0c2300d0bc.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4404	RegSvcs.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4404	RegSvcs.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2500 wrote to memory of 4404	2500	cb8e8d185adfffe272bafb00ef1000724beac1e478fba3e50682ac0c2300d0bc.exe	85
PID 2500 wrote to memory of 4404	2500	cb8e8d185adfffe272bafb00ef1000724beac1e478fba3e50682ac0c2300d0bc.exe	85
PID 2500 wrote to memory of 4404	2500	cb8e8d185adfffe272bafb00ef1000724beac1e478fba3e50682ac0c2300d0bc.exe	85
PID 2500 wrote to memory of 4404	2500	cb8e8d185adfffe272bafb00ef1000724beac1e478fba3e50682ac0c2300d0bc.exe	85

C:\Users\Admin\AppData\Local\Temp\cb8e8d185adfffe272bafb00ef1000724beac1e478fba3e50682ac0c2300d0bc.exe
"C:\Users\Admin\AppData\Local\Temp\cb8e8d185adfffe272bafb00ef1000724beac1e478fba3e50682ac0c2300d0bc.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:2500
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Users\Admin\AppData\Local\Temp\cb8e8d185adfffe272bafb00ef1000724beac1e478fba3e50682ac0c2300d0bc.exe"
  2⤵
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:4404
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2500 -s 744
  2⤵
  - Program crash
  PID:5060

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2500 -ip 2500
1⤵
PID:4396

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

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

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Downloads

memory/2500-2-0x0000000004330000-0x0000000004730000-memory.dmp

Filesize
4.0MB

Download
memory/4404-3-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/4404-4-0x000000007411E000-0x000000007411F000-memory.dmp

Filesize
4KB

Download
memory/4404-5-0x0000000005FB0000-0x0000000006554000-memory.dmp

Filesize
5.6MB

Download
memory/4404-7-0x0000000074110000-0x00000000748C0000-memory.dmp

Filesize
7.7MB

Download
memory/4404-6-0x0000000005820000-0x0000000005886000-memory.dmp

Filesize
408KB

Download
memory/4404-10-0x0000000006E60000-0x0000000006EF2000-memory.dmp

Filesize
584KB

Download
memory/4404-9-0x0000000006D70000-0x0000000006DC0000-memory.dmp

Filesize
320KB

Download
memory/4404-11-0x0000000007010000-0x000000000701A000-memory.dmp

Filesize
40KB

Download
memory/4404-12-0x000000007411E000-0x000000007411F000-memory.dmp

Filesize
4KB

Download
memory/4404-13-0x0000000074110000-0x00000000748C0000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads