agenttesla | 7f7bc308f1a31734af163c5b00fc0e1159d2ebdcebbe46b7c5113677f84fcea7

General

Target

tmp4y01tbju.exe
Size

828KB
MD5

9a60eaf7797d0888d2ee0361f21c0b81
SHA1

922f6c8f286b435d7fb09e399f1562ec43bb62df
SHA256

7f7bc308f1a31734af163c5b00fc0e1159d2ebdcebbe46b7c5113677f84fcea7
SHA512

57234a89cd56509df48c253ce1484596a5e80550f00f8d932e8577ad69ee7fda853f3d7106f755c2343684de877b07717d9c1a7a9b0d6448cfcbe173bb67d604
SSDEEP

12288:9xgX1QX7kIg7Htqmbif65YY2AKTLFarFdokODW15eP7r9r/+pppppppppppppppX:vUKkIgjZbfX2AKVarFdokSge1q

Score

10^/10

agenttesla credential_access discovery execution keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.iaa-airferight.com
Port:
587
Username:
[email protected]
Password:
manlikeyou88
Email To:
[email protected]

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla
Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
2412	powershell.exe
3056	powershell.exe

Reads WinSCP keys stored on the system 2 TTPs
Tries to access WinSCP stored sessions.
spyware stealer

Data from Local System
T1005

Credentials in Registry
T1552.002
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
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 stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2356 set thread context of 2992	2356	tmp4y01tbju.exe	37

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 5 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	tmp4y01tbju.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	tmp4y01tbju.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
2380	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2356	tmp4y01tbju.exe
2356	tmp4y01tbju.exe
2992	tmp4y01tbju.exe
2992	tmp4y01tbju.exe
2412	powershell.exe
3056	powershell.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	2356	tmp4y01tbju.exe
Token: SeDebugPrivilege	2992	tmp4y01tbju.exe
Token: SeDebugPrivilege	2412	powershell.exe
Token: SeDebugPrivilege	3056	powershell.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 2356 wrote to memory of 2412	2356	tmp4y01tbju.exe	31
PID 2356 wrote to memory of 2412	2356	tmp4y01tbju.exe	31
PID 2356 wrote to memory of 2412	2356	tmp4y01tbju.exe	31
PID 2356 wrote to memory of 2412	2356	tmp4y01tbju.exe	31
PID 2356 wrote to memory of 3056	2356	tmp4y01tbju.exe	33
PID 2356 wrote to memory of 3056	2356	tmp4y01tbju.exe	33
PID 2356 wrote to memory of 3056	2356	tmp4y01tbju.exe	33
PID 2356 wrote to memory of 3056	2356	tmp4y01tbju.exe	33
PID 2356 wrote to memory of 2380	2356	tmp4y01tbju.exe	34
PID 2356 wrote to memory of 2380	2356	tmp4y01tbju.exe	34
PID 2356 wrote to memory of 2380	2356	tmp4y01tbju.exe	34
PID 2356 wrote to memory of 2380	2356	tmp4y01tbju.exe	34
PID 2356 wrote to memory of 2992	2356	tmp4y01tbju.exe	37
PID 2356 wrote to memory of 2992	2356	tmp4y01tbju.exe	37
PID 2356 wrote to memory of 2992	2356	tmp4y01tbju.exe	37
PID 2356 wrote to memory of 2992	2356	tmp4y01tbju.exe	37
PID 2356 wrote to memory of 2992	2356	tmp4y01tbju.exe	37
PID 2356 wrote to memory of 2992	2356	tmp4y01tbju.exe	37
PID 2356 wrote to memory of 2992	2356	tmp4y01tbju.exe	37
PID 2356 wrote to memory of 2992	2356	tmp4y01tbju.exe	37
PID 2356 wrote to memory of 2992	2356	tmp4y01tbju.exe	37

C:\Users\Admin\AppData\Local\Temp\tmp4y01tbju.exe
"C:\Users\Admin\AppData\Local\Temp\tmp4y01tbju.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2356
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\tmp4y01tbju.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2412
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\nPKNUIybokG.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3056
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\nPKNUIybokG" /XML "C:\Users\Admin\AppData\Local\Temp\tmpACA.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2380
- C:\Users\Admin\AppData\Local\Temp\tmp4y01tbju.exe
  "C:\Users\Admin\AppData\Local\Temp\tmp4y01tbju.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2992

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

4

T1552

Credentials In Files

3

T1552.001

Credentials in Registry

1

T1552.002

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

4

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpACA.tmp

Filesize
1KB

MD5
0900eb0718498751ce13e1b0ec680b17

SHA1
c12b9cba49382d80f5917bde11870497780fc98d

SHA256
519713db0bcbac8aa14b7da5d726d9e0ea19e802df8ec1a8430f16f4f37e9c69

SHA512
f63fdc51114874028d0303822bddbae36b539d817d0fa5140a95ff26cf9a38316ed8d26901f87466d42fc6eedf6505f9f5d53549b54c61c9575054552edbd5ed

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

Filesize
7KB

MD5
479932765c171b5223fbbedce3c944c9

SHA1
b335f3d601ae6db801bc43d6c1e8ee2e472dcd4f

SHA256
a34230b6242a52f397c6c5be6271550f743b1227c66a45fcd3cd993ddadf49a8

SHA512
18595bd8c81eae5baf333bfa82dea4380ca6da0359a1babc1ac935340d42af19d95b8f4d9374281a67f53ddcd9404b4a62d00722dd94c6f2bf6c4192203ff831

Download Submit
memory/2356-4-0x000000007463E000-0x000000007463F000-memory.dmp

Filesize
4KB

Download
memory/2356-32-0x0000000074630000-0x0000000074D1E000-memory.dmp

Filesize
6.9MB

Download
memory/2356-0-0x000000007463E000-0x000000007463F000-memory.dmp

Filesize
4KB

Download
memory/2356-5-0x0000000074630000-0x0000000074D1E000-memory.dmp

Filesize
6.9MB

Download
memory/2356-6-0x00000000052C0000-0x0000000005342000-memory.dmp

Filesize
520KB

Download
memory/2356-2-0x0000000074630000-0x0000000074D1E000-memory.dmp

Filesize
6.9MB

Download
memory/2356-1-0x0000000001270000-0x0000000001344000-memory.dmp

Filesize
848KB

Download
memory/2356-3-0x0000000000450000-0x0000000000460000-memory.dmp

Filesize
64KB

Download
memory/2992-19-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2992-28-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2992-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2992-25-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2992-31-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2992-23-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2992-21-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2992-29-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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