agenttesla | 77b72d9e11b5b61983903918dfb822e8c6c1e3a4acd6a5fde5db7a3cf004b445

General

Target

PURCHASE ORDER_20230601.exe
Size

103KB
MD5

e034dcab67a1ef7eb1f65347439ed212
SHA1

d33baf287318eb7b0cf5725712203d35d3ac80d8
SHA256

77b72d9e11b5b61983903918dfb822e8c6c1e3a4acd6a5fde5db7a3cf004b445
SHA512

c94de9a264e876d1d00e1a51b3ea5590c66d0099a010259e3fda9c7cc82714139246fbbddc1ea1c714aec7f8b856e459e3718180c1522a82320f1950a6027953
SSDEEP

768:pp1PpUMVzUSRmST294dWa2P7b1IzPrXMkN336DXa:z1P+iwSD294dN2PmfMkN3KDq

Score

10^/10

agenttesla purecrypter collection downloader keylogger loader persistence spyware stealer trojan

Malware Config

Extracted

Family

purecrypter

C2

http://208.67.107.146/Xvhwgnaxcaj.png

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot6237173637:AAHL1SZ0swNAdHMB508Hs_WnK-RKakXlUmA/

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

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

InstallUtil.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key opened	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key opened	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

PURCHASE ORDER_20230601.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Zkqeesiggtt = "\"C:\\Users\\Admin\\AppData\\Roaming\\Jwjztcm\\Zkqeesiggtt.exe\""	PURCHASE ORDER_20230601.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.

Processes:

flow ioc

37 api.ipify.org
36 api.ipify.org
Suspicious use of SetThreadContext 1 IoCs

Processes:

PURCHASE ORDER_20230601.exe

description pid process target process

PID 824 set thread context of 1352 824 PURCHASE ORDER_20230601.exe InstallUtil.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

InstallUtil.exe

pid process

1352 InstallUtil.exe
1352 InstallUtil.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

PURCHASE ORDER_20230601.exeInstallUtil.exe

description pid process

Token: SeDebugPrivilege 824 PURCHASE ORDER_20230601.exe
Token: SeDebugPrivilege 1352 InstallUtil.exe

flow	ioc
37	api.ipify.org
36	api.ipify.org

description	pid	process	target process
PID 824 set thread context of 1352	824	PURCHASE ORDER_20230601.exe	InstallUtil.exe

pid	process
1352	InstallUtil.exe
1352	InstallUtil.exe

description	pid	process
Token: SeDebugPrivilege	824	PURCHASE ORDER_20230601.exe
Token: SeDebugPrivilege	1352	InstallUtil.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

PURCHASE ORDER_20230601.exe

description	pid	process	target process
PID 824 wrote to memory of 1352	824	PURCHASE ORDER_20230601.exe	InstallUtil.exe
PID 824 wrote to memory of 1352	824	PURCHASE ORDER_20230601.exe	InstallUtil.exe
PID 824 wrote to memory of 1352	824	PURCHASE ORDER_20230601.exe	InstallUtil.exe
PID 824 wrote to memory of 1352	824	PURCHASE ORDER_20230601.exe	InstallUtil.exe
PID 824 wrote to memory of 1352	824	PURCHASE ORDER_20230601.exe	InstallUtil.exe
PID 824 wrote to memory of 1352	824	PURCHASE ORDER_20230601.exe	InstallUtil.exe
PID 824 wrote to memory of 1352	824	PURCHASE ORDER_20230601.exe	InstallUtil.exe
PID 824 wrote to memory of 1352	824	PURCHASE ORDER_20230601.exe	InstallUtil.exe

outlook_office_path 1 IoCs

Processes:

InstallUtil.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe

outlook_win_path 1 IoCs

Processes:

InstallUtil.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe

C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER_20230601.exe
"C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER_20230601.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:824

C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:1352

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

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Downloads

memory/824-133-0x0000000000DA0000-0x0000000000DC0000-memory.dmp

Filesize
128KB

Download
memory/824-134-0x0000000005C40000-0x00000000061E4000-memory.dmp

Filesize
5.6MB

Download
memory/824-135-0x0000000005750000-0x00000000057E2000-memory.dmp

Filesize
584KB

Download
memory/824-136-0x00000000057F0000-0x00000000057FA000-memory.dmp

Filesize
40KB

Download
memory/824-137-0x00000000058A0000-0x00000000058B0000-memory.dmp

Filesize
64KB

Download
memory/824-138-0x0000000007E90000-0x0000000007EB2000-memory.dmp

Filesize
136KB

Download
memory/1352-140-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1352-142-0x0000000004F00000-0x0000000004F66000-memory.dmp

Filesize
408KB

Download
memory/1352-143-0x0000000005060000-0x0000000005070000-memory.dmp

Filesize
64KB

Download
memory/1352-144-0x0000000006450000-0x00000000064A0000-memory.dmp

Filesize
320KB

Download
memory/1352-145-0x0000000006670000-0x0000000006832000-memory.dmp

Filesize
1.8MB

Download
memory/1352-146-0x0000000005060000-0x0000000005070000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads