agenttesla | 9da3f3e0eb77d090aae39e7df9c2e5a0243d0f4cd26c7a7ed0831bafde6e9fe6

Analysis

max time kernel
117s
max time network
118s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
29-06-2024 01:38

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General

Target

PO 5002407962.exe
Size

1.2MB
MD5

aec18c694fce000f07ae7dc56653bff0
SHA1

840635306bec9a2ec62d9c12fd19eece134878cf
SHA256

82e145d3a3699341fd1baab548a2327fa87e642e7734b8b12121f24e072ec9d9
SHA512

cbb1849e23bb055ef059ad1b5c32823edc2fc52151a9d55a0c1f84a381687b8717175f00e39fbbdbf3b1fc4cd8341b56f492fc218202f8e9e9a7f4211d014ef7
SSDEEP

12288:eARmQ3lR3IYGg0RAbueIKU41eksRz+goaoxmQa3/tYCSbD/PxN:3Z5GTRAqVUeksRzjojG3SCUD/

Score

10^/10

agenttesla keylogger spyware stealer trojan

Malware Config

Extracted

Credentials

Protocol: ftp
Host:
ftp.ercolina-usa.com
Port:
21
Username:
[email protected]
Password:
,%EVY$JU0=lu

Extracted

Family

agenttesla

Credentials

Protocol: ftp
Host:
ftp://ftp.ercolina-usa.com
Port:
21
Username:
[email protected]
Password:
,%EVY$JU0=lu

Signatures

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

Detect packed .NET executables. Mostly AgentTeslaV4. 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2944-11-0x0000000000400000-0x0000000000448000-memory.dmp	INDICATOR_EXE_Packed_GEN01
behavioral1/memory/2944-9-0x0000000000400000-0x0000000000448000-memory.dmp	INDICATOR_EXE_Packed_GEN01
behavioral1/memory/2944-7-0x0000000000400000-0x0000000000448000-memory.dmp	INDICATOR_EXE_Packed_GEN01
behavioral1/memory/2944-6-0x0000000000400000-0x0000000000448000-memory.dmp	INDICATOR_EXE_Packed_GEN01
behavioral1/memory/2944-13-0x0000000000400000-0x0000000000448000-memory.dmp	INDICATOR_EXE_Packed_GEN01

Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2944-11-0x0000000000400000-0x0000000000448000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers
behavioral1/memory/2944-9-0x0000000000400000-0x0000000000448000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers
behavioral1/memory/2944-7-0x0000000000400000-0x0000000000448000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers
behavioral1/memory/2944-6-0x0000000000400000-0x0000000000448000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers
behavioral1/memory/2944-13-0x0000000000400000-0x0000000000448000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers

Detects binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2944-11-0x0000000000400000-0x0000000000448000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL
behavioral1/memory/2944-9-0x0000000000400000-0x0000000000448000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL
behavioral1/memory/2944-7-0x0000000000400000-0x0000000000448000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL
behavioral1/memory/2944-6-0x0000000000400000-0x0000000000448000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL
behavioral1/memory/2944-13-0x0000000000400000-0x0000000000448000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL

Detects executables packed with or use KoiVM 1 IoCs

Processes:

resource yara_rule

behavioral1/memory/2224-2-0x00000000006A0000-0x000000000073A000-memory.dmp INDICATOR_EXE_Packed_KoiVM

resource	yara_rule
behavioral1/memory/2224-2-0x00000000006A0000-0x000000000073A000-memory.dmp	INDICATOR_EXE_Packed_KoiVM

Detects executables referencing Windows vault credential objects. Observed in infostealers 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2944-11-0x0000000000400000-0x0000000000448000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
behavioral1/memory/2944-9-0x0000000000400000-0x0000000000448000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
behavioral1/memory/2944-7-0x0000000000400000-0x0000000000448000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
behavioral1/memory/2944-6-0x0000000000400000-0x0000000000448000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
behavioral1/memory/2944-13-0x0000000000400000-0x0000000000448000-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 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2944-11-0x0000000000400000-0x0000000000448000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
behavioral1/memory/2944-9-0x0000000000400000-0x0000000000448000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
behavioral1/memory/2944-7-0x0000000000400000-0x0000000000448000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
behavioral1/memory/2944-6-0x0000000000400000-0x0000000000448000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
behavioral1/memory/2944-13-0x0000000000400000-0x0000000000448000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store

Detects executables referencing many email and collaboration clients. Observed in information stealers 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2944-11-0x0000000000400000-0x0000000000448000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
behavioral1/memory/2944-9-0x0000000000400000-0x0000000000448000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
behavioral1/memory/2944-7-0x0000000000400000-0x0000000000448000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
behavioral1/memory/2944-6-0x0000000000400000-0x0000000000448000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
behavioral1/memory/2944-13-0x0000000000400000-0x0000000000448000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients

Detects executables referencing many file transfer clients. Observed in information stealers 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2944-11-0x0000000000400000-0x0000000000448000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
behavioral1/memory/2944-9-0x0000000000400000-0x0000000000448000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
behavioral1/memory/2944-7-0x0000000000400000-0x0000000000448000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
behavioral1/memory/2944-6-0x0000000000400000-0x0000000000448000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
behavioral1/memory/2944-13-0x0000000000400000-0x0000000000448000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients

Looks up external IP address via web service 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

4 api.ipify.org
5 api.ipify.org
6 ip-api.com
Suspicious use of SetThreadContext 1 IoCs

Processes:

PO 5002407962.exe

description pid process target process

PID 2224 set thread context of 2944 2224 PO 5002407962.exe installutil.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

installutil.exe

pid process

2944 installutil.exe
2944 installutil.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

installutil.exe

description pid process

Token: SeDebugPrivilege 2944 installutil.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

installutil.exe

pid process

2944 installutil.exe

flow	ioc
4	api.ipify.org
5	api.ipify.org
6	ip-api.com

description	pid	process	target process
PID 2224 set thread context of 2944	2224	PO 5002407962.exe	installutil.exe

pid	process
2944	installutil.exe
2944	installutil.exe

description	pid	process
Token: SeDebugPrivilege	2944	installutil.exe

pid	process
2944	installutil.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

PO 5002407962.exe

description	pid	process	target process
PID 2224 wrote to memory of 2944	2224	PO 5002407962.exe	installutil.exe
PID 2224 wrote to memory of 2944	2224	PO 5002407962.exe	installutil.exe
PID 2224 wrote to memory of 2944	2224	PO 5002407962.exe	installutil.exe
PID 2224 wrote to memory of 2944	2224	PO 5002407962.exe	installutil.exe
PID 2224 wrote to memory of 2944	2224	PO 5002407962.exe	installutil.exe
PID 2224 wrote to memory of 2944	2224	PO 5002407962.exe	installutil.exe
PID 2224 wrote to memory of 2944	2224	PO 5002407962.exe	installutil.exe
PID 2224 wrote to memory of 2944	2224	PO 5002407962.exe	installutil.exe
PID 2224 wrote to memory of 2944	2224	PO 5002407962.exe	installutil.exe
PID 2224 wrote to memory of 2944	2224	PO 5002407962.exe	installutil.exe
PID 2224 wrote to memory of 2944	2224	PO 5002407962.exe	installutil.exe
PID 2224 wrote to memory of 2944	2224	PO 5002407962.exe	installutil.exe
PID 2224 wrote to memory of 2608	2224	PO 5002407962.exe	WerFault.exe
PID 2224 wrote to memory of 2608	2224	PO 5002407962.exe	WerFault.exe
PID 2224 wrote to memory of 2608	2224	PO 5002407962.exe	WerFault.exe

C:\Users\Admin\AppData\Local\Temp\PO 5002407962.exe
"C:\Users\Admin\AppData\Local\Temp\PO 5002407962.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2224

C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:2944

C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -u -p 2224 -s 620
2⤵
PID:2608

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/2224-0-0x000007FEF5773000-0x000007FEF5774000-memory.dmp

Filesize
4KB

Download
memory/2224-1-0x0000000000B60000-0x0000000000B78000-memory.dmp

Filesize
96KB

Download
memory/2224-2-0x00000000006A0000-0x000000000073A000-memory.dmp

Filesize
616KB

Download
memory/2224-3-0x000007FEF5770000-0x000007FEF615C000-memory.dmp

Filesize
9.9MB

Download
memory/2224-17-0x000007FEF5770000-0x000007FEF615C000-memory.dmp

Filesize
9.9MB

Download
memory/2224-16-0x000007FEF5773000-0x000007FEF5774000-memory.dmp

Filesize
4KB

Download
memory/2944-7-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download
memory/2944-8-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2944-9-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download
memory/2944-6-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download
memory/2944-5-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download
memory/2944-13-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download
memory/2944-14-0x00000000745DE000-0x00000000745DF000-memory.dmp

Filesize
4KB

Download
memory/2944-15-0x00000000745D0000-0x0000000074CBE000-memory.dmp

Filesize
6.9MB

Download
memory/2944-11-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download
memory/2944-4-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download
memory/2944-18-0x00000000745DE000-0x00000000745DF000-memory.dmp

Filesize
4KB

Download
memory/2944-19-0x00000000745D0000-0x0000000074CBE000-memory.dmp

Filesize
6.9MB

Download