agenttesla | 7a44d661f4c1ac837b0045dc28562b098cb66b5e371bda8a79ef00000fa66a65

General

Target

YKRAB010B_KHE_Preminary Packing List.xlsx.exe
Size

1.1MB
MD5

9a06197daf40639c61cc898e8db91340
SHA1

ffe7c6850523c7d4c7336dee86e65662d8a228db
SHA256

7a44d661f4c1ac837b0045dc28562b098cb66b5e371bda8a79ef00000fa66a65
SHA512

c90c7d9d0809e266a57110681078aaec2e224a01c567d7c6c115300b046ff1ea15d3b9f37d58aaf003e24a33714caa63b765275947515d7a45228eb208b4e277

Score

10^/10

agenttesla agilenet keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.hyshippingcn.com
Port:
587
Username:
[email protected]
Password:
e*u@qkS4

Signatures

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

AgentTesla Payload 3 IoCs

resource	yara_rule
behavioral1/memory/384-13-0x000000000043763E-mapping.dmp	family_agenttesla
behavioral1/memory/384-12-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/384-17-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla

Executes dropped EXE 1 IoCs

pid	Process
384	InstallUtil.exe

Loads dropped DLL 1 IoCs

pid	Process
1812	YKRAB010B_KHE_Preminary Packing List.xlsx.exe

Obfuscated with Agile.Net obfuscator 1 IoCs

Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.

agilenet

resource	yara_rule
behavioral1/memory/1812-7-0x00000000008B0000-0x00000000008D1000-memory.dmp	agile_net

Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware

Data from Local System
T1005

Credentials in Files
T1081
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

Data from Local System
T1005

Credentials in Files
T1081
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware

Data from Local System
T1005

Credentials in Files
T1081

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
10	api.ipify.org
11	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1812 set thread context of 384	1812	YKRAB010B_KHE_Preminary Packing List.xlsx.exe	29

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1812	YKRAB010B_KHE_Preminary Packing List.xlsx.exe
1812	YKRAB010B_KHE_Preminary Packing List.xlsx.exe
384	InstallUtil.exe
384	InstallUtil.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1812	YKRAB010B_KHE_Preminary Packing List.xlsx.exe
Token: SeDebugPrivilege	384	InstallUtil.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1812 wrote to memory of 384	1812	YKRAB010B_KHE_Preminary Packing List.xlsx.exe	29
PID 1812 wrote to memory of 384	1812	YKRAB010B_KHE_Preminary Packing List.xlsx.exe	29
PID 1812 wrote to memory of 384	1812	YKRAB010B_KHE_Preminary Packing List.xlsx.exe	29
PID 1812 wrote to memory of 384	1812	YKRAB010B_KHE_Preminary Packing List.xlsx.exe	29
PID 1812 wrote to memory of 384	1812	YKRAB010B_KHE_Preminary Packing List.xlsx.exe	29
PID 1812 wrote to memory of 384	1812	YKRAB010B_KHE_Preminary Packing List.xlsx.exe	29
PID 1812 wrote to memory of 384	1812	YKRAB010B_KHE_Preminary Packing List.xlsx.exe	29
PID 1812 wrote to memory of 384	1812	YKRAB010B_KHE_Preminary Packing List.xlsx.exe	29
PID 1812 wrote to memory of 384	1812	YKRAB010B_KHE_Preminary Packing List.xlsx.exe	29
PID 1812 wrote to memory of 384	1812	YKRAB010B_KHE_Preminary Packing List.xlsx.exe	29
PID 1812 wrote to memory of 384	1812	YKRAB010B_KHE_Preminary Packing List.xlsx.exe	29
PID 1812 wrote to memory of 384	1812	YKRAB010B_KHE_Preminary Packing List.xlsx.exe	29

C:\Users\Admin\AppData\Local\Temp\YKRAB010B_KHE_Preminary Packing List.xlsx.exe
"C:\Users\Admin\AppData\Local\Temp\YKRAB010B_KHE_Preminary Packing List.xlsx.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1812
- C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe
  "C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:384

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

3

T1081

Discovery

Lateral Movement

Collection

Data from Local System

3

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/384-16-0x0000000073E00000-0x00000000744EE000-memory.dmp

Filesize
6.9MB

Download
memory/384-12-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/384-17-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/384-19-0x0000000004C00000-0x0000000004C01000-memory.dmp

Filesize
4KB

Download
memory/384-20-0x0000000004C01000-0x0000000004C02000-memory.dmp

Filesize
4KB

Download
memory/1812-8-0x0000000004B01000-0x0000000004B02000-memory.dmp

Filesize
4KB

Download
memory/1812-9-0x0000000000530000-0x000000000053B000-memory.dmp

Filesize
44KB

Download
memory/1812-10-0x0000000000450000-0x0000000000451000-memory.dmp

Filesize
4KB

Download
memory/1812-7-0x00000000008B0000-0x00000000008D1000-memory.dmp

Filesize
132KB

Download
memory/1812-5-0x0000000004B00000-0x0000000004B01000-memory.dmp

Filesize
4KB

Download
memory/1812-3-0x00000000008E0000-0x00000000008E1000-memory.dmp

Filesize
4KB

Download
memory/1812-2-0x0000000073E00000-0x00000000744EE000-memory.dmp

Filesize
6.9MB

Download

Analysis

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