agenttesla | 2cfd4cbfe7bedf67791eb6370d29d4651b172d0094d7530bb76858293f8045eb

Analysis

max time kernel
118s
max time network
120s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
12-06-2024 01:14

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General

Target

2cfd4cbfe7bedf67791eb6370d29d4651b172d0094d7530bb76858293f8045eb.exe
Size

166KB
MD5

47267596e9278466493d0766e0bc58d5
SHA1

69152978f99129c76dd45a99dad857732d658cc1
SHA256

2cfd4cbfe7bedf67791eb6370d29d4651b172d0094d7530bb76858293f8045eb
SHA512

949339b509895f0259c379b1aa0342f94db88814112232eccd901249baf92c7d9a605f0a18a1473ac49d34d311ae1d133bdba28d8d376ac46d0ab172b818e098
SSDEEP

768:5ypDwT1ZBRerxpg4pXDOTJznXiBEKClD8:opDwT1ZCrnDpXDOZnEEKClo

Score

10^/10

agenttesla purecrypter downloader keylogger loader persistence spyware stealer trojan

Malware Config

Extracted

Family

purecrypter

http://103.20.235.174/min/Bponzkhw.wav

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
162.254.34.31
Port:
587
Username:
[email protected]
Password:
ABwuRZS5Mjh5
Email To:
[email protected]

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla
PureCrypter
PureCrypter is a .NET malware loader first seen in early 2021.
loader downloader purecrypter

Detect packed .NET executables. Mostly AgentTeslaV4. 1 IoCs

resource	yara_rule
behavioral1/memory/668-4914-0x0000000000080000-0x00000000000C0000-memory.dmp	INDICATOR_EXE_Packed_GEN01

Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 1 IoCs

resource	yara_rule
behavioral1/memory/668-4914-0x0000000000080000-0x00000000000C0000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers

Detects executables referencing Windows vault credential objects. Observed in infostealers 1 IoCs

resource	yara_rule
behavioral1/memory/668-4914-0x0000000000080000-0x00000000000C0000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID

Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers 1 IoCs

resource	yara_rule
behavioral1/memory/668-4914-0x0000000000080000-0x00000000000C0000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store

Detects executables referencing many email and collaboration clients. Observed in information stealers 1 IoCs

resource	yara_rule
behavioral1/memory/668-4914-0x0000000000080000-0x00000000000C0000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients

Detects executables referencing many file transfer clients. Observed in information stealers 1 IoCs

resource	yara_rule
behavioral1/memory/668-4914-0x0000000000080000-0x00000000000C0000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients

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

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-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Windows\CurrentVersion\Run\Fotbczlce = "C:\\Users\\Admin\\AppData\\Roaming\\Fotbczlce.exe"	2cfd4cbfe7bedf67791eb6370d29d4651b172d0094d7530bb76858293f8045eb.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
6	api.ipify.org
7	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2004 set thread context of 668	2004	2cfd4cbfe7bedf67791eb6370d29d4651b172d0094d7530bb76858293f8045eb.exe	33

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

System Information Discovery
T1082

Gathers network information 2 TTPs 2 IoCs

Uses commandline utility to view network configuration.

System Information Discovery

T1082

Command and Scripting Interpreter

T1059

pid	Process
2612	ipconfig.exe
1268	ipconfig.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
668	2cfd4cbfe7bedf67791eb6370d29d4651b172d0094d7530bb76858293f8045eb.exe
668	2cfd4cbfe7bedf67791eb6370d29d4651b172d0094d7530bb76858293f8045eb.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2004	2cfd4cbfe7bedf67791eb6370d29d4651b172d0094d7530bb76858293f8045eb.exe
Token: SeDebugPrivilege	2004	2cfd4cbfe7bedf67791eb6370d29d4651b172d0094d7530bb76858293f8045eb.exe
Token: SeDebugPrivilege	668	2cfd4cbfe7bedf67791eb6370d29d4651b172d0094d7530bb76858293f8045eb.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 2004 wrote to memory of 2628	2004	2cfd4cbfe7bedf67791eb6370d29d4651b172d0094d7530bb76858293f8045eb.exe	28
PID 2004 wrote to memory of 2628	2004	2cfd4cbfe7bedf67791eb6370d29d4651b172d0094d7530bb76858293f8045eb.exe	28
PID 2004 wrote to memory of 2628	2004	2cfd4cbfe7bedf67791eb6370d29d4651b172d0094d7530bb76858293f8045eb.exe	28
PID 2004 wrote to memory of 2628	2004	2cfd4cbfe7bedf67791eb6370d29d4651b172d0094d7530bb76858293f8045eb.exe	28
PID 2628 wrote to memory of 2612	2628	cmd.exe	30
PID 2628 wrote to memory of 2612	2628	cmd.exe	30
PID 2628 wrote to memory of 2612	2628	cmd.exe	30
PID 2628 wrote to memory of 2612	2628	cmd.exe	30
PID 2004 wrote to memory of 668	2004	2cfd4cbfe7bedf67791eb6370d29d4651b172d0094d7530bb76858293f8045eb.exe	33
PID 2004 wrote to memory of 668	2004	2cfd4cbfe7bedf67791eb6370d29d4651b172d0094d7530bb76858293f8045eb.exe	33
PID 2004 wrote to memory of 668	2004	2cfd4cbfe7bedf67791eb6370d29d4651b172d0094d7530bb76858293f8045eb.exe	33
PID 2004 wrote to memory of 668	2004	2cfd4cbfe7bedf67791eb6370d29d4651b172d0094d7530bb76858293f8045eb.exe	33
PID 2004 wrote to memory of 668	2004	2cfd4cbfe7bedf67791eb6370d29d4651b172d0094d7530bb76858293f8045eb.exe	33
PID 2004 wrote to memory of 668	2004	2cfd4cbfe7bedf67791eb6370d29d4651b172d0094d7530bb76858293f8045eb.exe	33
PID 2004 wrote to memory of 668	2004	2cfd4cbfe7bedf67791eb6370d29d4651b172d0094d7530bb76858293f8045eb.exe	33
PID 2004 wrote to memory of 668	2004	2cfd4cbfe7bedf67791eb6370d29d4651b172d0094d7530bb76858293f8045eb.exe	33
PID 2004 wrote to memory of 668	2004	2cfd4cbfe7bedf67791eb6370d29d4651b172d0094d7530bb76858293f8045eb.exe	33
PID 2004 wrote to memory of 2392	2004	2cfd4cbfe7bedf67791eb6370d29d4651b172d0094d7530bb76858293f8045eb.exe	34
PID 2004 wrote to memory of 2392	2004	2cfd4cbfe7bedf67791eb6370d29d4651b172d0094d7530bb76858293f8045eb.exe	34
PID 2004 wrote to memory of 2392	2004	2cfd4cbfe7bedf67791eb6370d29d4651b172d0094d7530bb76858293f8045eb.exe	34
PID 2004 wrote to memory of 2392	2004	2cfd4cbfe7bedf67791eb6370d29d4651b172d0094d7530bb76858293f8045eb.exe	34
PID 2392 wrote to memory of 1268	2392	cmd.exe	36
PID 2392 wrote to memory of 1268	2392	cmd.exe	36
PID 2392 wrote to memory of 1268	2392	cmd.exe	36
PID 2392 wrote to memory of 1268	2392	cmd.exe	36

C:\Users\Admin\AppData\Local\Temp\2cfd4cbfe7bedf67791eb6370d29d4651b172d0094d7530bb76858293f8045eb.exe
"C:\Users\Admin\AppData\Local\Temp\2cfd4cbfe7bedf67791eb6370d29d4651b172d0094d7530bb76858293f8045eb.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2004
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c ipconfig /release
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2628
- - C:\Windows\SysWOW64\ipconfig.exe
    ipconfig /release
    3⤵
    - Gathers network information
    PID:2612
- C:\Users\Admin\AppData\Local\Temp\2cfd4cbfe7bedf67791eb6370d29d4651b172d0094d7530bb76858293f8045eb.exe
  "C:\Users\Admin\AppData\Local\Temp\2cfd4cbfe7bedf67791eb6370d29d4651b172d0094d7530bb76858293f8045eb.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:668
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c ipconfig /renew
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2392
- - C:\Windows\SysWOW64\ipconfig.exe
    ipconfig /renew
    3⤵
    - Gathers network information
    PID:1268

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Credentials in Registry

T1552.002

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/668-4914-0x0000000000080000-0x00000000000C0000-memory.dmp

Filesize
256KB

Download
memory/2004-39-0x0000000007610000-0x000000000783C000-memory.dmp

Filesize
2.2MB

Download
memory/2004-5-0x0000000007610000-0x000000000783C000-memory.dmp

Filesize
2.2MB

Download
memory/2004-3-0x0000000007610000-0x0000000007842000-memory.dmp

Filesize
2.2MB

Download
memory/2004-0-0x00000000745AE000-0x00000000745AF000-memory.dmp

Filesize
4KB

Download
memory/2004-9-0x0000000007610000-0x000000000783C000-memory.dmp

Filesize
2.2MB

Download
memory/2004-15-0x0000000007610000-0x000000000783C000-memory.dmp

Filesize
2.2MB

Download
memory/2004-17-0x0000000007610000-0x000000000783C000-memory.dmp

Filesize
2.2MB

Download
memory/2004-19-0x0000000007610000-0x000000000783C000-memory.dmp

Filesize
2.2MB

Download
memory/2004-21-0x0000000007610000-0x000000000783C000-memory.dmp

Filesize
2.2MB

Download
memory/2004-23-0x0000000007610000-0x000000000783C000-memory.dmp

Filesize
2.2MB

Download
memory/2004-37-0x0000000007610000-0x000000000783C000-memory.dmp

Filesize
2.2MB

Download
memory/2004-13-0x0000000007610000-0x000000000783C000-memory.dmp

Filesize
2.2MB

Download
memory/2004-41-0x0000000007610000-0x000000000783C000-memory.dmp

Filesize
2.2MB

Download
memory/2004-31-0x0000000007610000-0x000000000783C000-memory.dmp

Filesize
2.2MB

Download
memory/2004-35-0x0000000007610000-0x000000000783C000-memory.dmp

Filesize
2.2MB

Download
memory/2004-33-0x0000000007610000-0x000000000783C000-memory.dmp

Filesize
2.2MB

Download
memory/2004-27-0x0000000007610000-0x000000000783C000-memory.dmp

Filesize
2.2MB

Download
memory/2004-7-0x0000000007610000-0x000000000783C000-memory.dmp

Filesize
2.2MB

Download
memory/2004-4-0x0000000007610000-0x000000000783C000-memory.dmp

Filesize
2.2MB

Download
memory/2004-11-0x0000000007610000-0x000000000783C000-memory.dmp

Filesize
2.2MB

Download
memory/2004-25-0x0000000007610000-0x000000000783C000-memory.dmp

Filesize
2.2MB

Download
memory/2004-2-0x00000000745A0000-0x0000000074C8E000-memory.dmp

Filesize
6.9MB

Download
memory/2004-29-0x0000000007610000-0x000000000783C000-memory.dmp

Filesize
2.2MB

Download
memory/2004-43-0x0000000007610000-0x000000000783C000-memory.dmp

Filesize
2.2MB

Download
memory/2004-53-0x0000000007610000-0x000000000783C000-memory.dmp

Filesize
2.2MB

Download
memory/2004-51-0x0000000007610000-0x000000000783C000-memory.dmp

Filesize
2.2MB

Download
memory/2004-49-0x0000000007610000-0x000000000783C000-memory.dmp

Filesize
2.2MB

Download
memory/2004-65-0x0000000007610000-0x000000000783C000-memory.dmp

Filesize
2.2MB

Download
memory/2004-47-0x0000000007610000-0x000000000783C000-memory.dmp

Filesize
2.2MB

Download
memory/2004-67-0x0000000007610000-0x000000000783C000-memory.dmp

Filesize
2.2MB

Download
memory/2004-63-0x0000000007610000-0x000000000783C000-memory.dmp

Filesize
2.2MB

Download
memory/2004-61-0x0000000007610000-0x000000000783C000-memory.dmp

Filesize
2.2MB

Download
memory/2004-59-0x0000000007610000-0x000000000783C000-memory.dmp

Filesize
2.2MB

Download
memory/2004-4890-0x00000000745AE000-0x00000000745AF000-memory.dmp

Filesize
4KB

Download
memory/2004-4891-0x00000000745A0000-0x0000000074C8E000-memory.dmp

Filesize
6.9MB

Download
memory/2004-57-0x0000000007610000-0x000000000783C000-memory.dmp

Filesize
2.2MB

Download
memory/2004-55-0x0000000007610000-0x000000000783C000-memory.dmp

Filesize
2.2MB

Download
memory/2004-45-0x0000000007610000-0x000000000783C000-memory.dmp

Filesize
2.2MB

Download
memory/2004-4893-0x0000000004E20000-0x0000000004E6C000-memory.dmp

Filesize
304KB

Download
memory/2004-4892-0x0000000004F00000-0x0000000004F6C000-memory.dmp

Filesize
432KB

Download
memory/2004-4894-0x00000000745A0000-0x0000000074C8E000-memory.dmp

Filesize
6.9MB

Download
memory/2004-4895-0x0000000005670000-0x00000000056C4000-memory.dmp

Filesize
336KB

Download
memory/2004-1-0x0000000000AC0000-0x0000000000AF0000-memory.dmp

Filesize
192KB

Download
memory/2004-4915-0x00000000745A0000-0x0000000074C8E000-memory.dmp

Filesize
6.9MB

Download