agenttesla | 4a662afebf865f33884fee10b2068e5c287aeca6e100afaf06c154ca7f16fa1e

General

Target

4a662afebf865f33884fee10b2068e5c287aeca6e100afaf06c154ca7f16fa1e.xlam
Size

763KB
MD5

50b7771a6627a73b27c46273c0cbe425
SHA1

0f82ffb9a5224bb49714d6b16fc0674cc6a78926
SHA256

4a662afebf865f33884fee10b2068e5c287aeca6e100afaf06c154ca7f16fa1e
SHA512

0107355b69e0b58cca68d5ba6f728fdf0e701507ef3048d924cb457cddde8890ab7162517c694bb1c24eaa0945ed53dedc46ec8608bb6608f824ce7846c432b1
SSDEEP

12288:HfLq60yYoGS32iZ02d/1Cj5vADJqYctAXMwg0EWyMETOO9dE9ibL9BOrn9tMxfiU:Hfj0yYoGS333mjOtGAXM2tyNKO9dE9ir

Score

10^/10

agenttesla credential_access discovery keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.worlorderbillions.top
Port:
587
Username:
[email protected]
Password:
3^?r?mtxk(kt
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

Blocklisted process makes network request 1 IoCs

flow	pid	Process
5	264	EQNEDT32.EXE

Downloads MZ/PE file

Executes dropped EXE 1 IoCs

pid	Process
2752	wshusiu.exe

Loads dropped DLL 1 IoCs

pid	Process
264	EQNEDT32.EXE

AutoIT Executable 1 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral1/files/0x0008000000016dd0-9.dat	autoit_exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2752 set thread context of 2892	2752	wshusiu.exe	33

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 4 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	wshusiu.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegSvcs.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	EQNEDT32.EXE

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\FloatingPointProcessor	EXCEL.EXE

Launches Equation Editor 1 TTPs 1 IoCs

Equation Editor is an old Office component often targeted by exploits such as CVE-2017-11882.

exploit

Exploitation for Client Execution

T1203

pid	Process
264	EQNEDT32.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
1652	EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2892	RegSvcs.exe
2892	RegSvcs.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
2752	wshusiu.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2892	RegSvcs.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
1652	EXCEL.EXE
1652	EXCEL.EXE
1652	EXCEL.EXE

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 264 wrote to memory of 2752	264	EQNEDT32.EXE	32
PID 264 wrote to memory of 2752	264	EQNEDT32.EXE	32
PID 264 wrote to memory of 2752	264	EQNEDT32.EXE	32
PID 264 wrote to memory of 2752	264	EQNEDT32.EXE	32
PID 2752 wrote to memory of 2892	2752	wshusiu.exe	33
PID 2752 wrote to memory of 2892	2752	wshusiu.exe	33
PID 2752 wrote to memory of 2892	2752	wshusiu.exe	33
PID 2752 wrote to memory of 2892	2752	wshusiu.exe	33
PID 2752 wrote to memory of 2892	2752	wshusiu.exe	33
PID 2752 wrote to memory of 2892	2752	wshusiu.exe	33
PID 2752 wrote to memory of 2892	2752	wshusiu.exe	33
PID 2752 wrote to memory of 2892	2752	wshusiu.exe	33

C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
"C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\4a662afebf865f33884fee10b2068e5c287aeca6e100afaf06c154ca7f16fa1e.xlam
1⤵
- System Location Discovery: System Language Discovery
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:1652

C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE
"C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE" -Embedding
1⤵
- Blocklisted process makes network request
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Launches Equation Editor
- Suspicious use of WriteProcessMemory
PID:264
- C:\Users\Admin\AppData\Local\Temp\wshusiu.exe
  C:\Users\Admin\AppData\Local\Temp\wshusiu.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:2752
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
    C:\Users\Admin\AppData\Local\Temp\wshusiu.exe
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2892

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Exploitation for Client Execution

1

T1203

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\wshusiu.exe

Filesize
1.1MB

MD5
e4df42ee6fd39d7ef3cb767571a3d9cf

SHA1
bc9db1db251e96c25d495ecf7eaeccc0b682a2aa

SHA256
6460c253f6d9b12b4598caca091e84040c80a929cae2997f0c9eb11c2897a1f0

SHA512
65da7053e550a573f0a5447efb20d478aa51ed0e509e6af3dbc1ad6cfa255a0e41817fd9c80ec2b2e08ecd6765448b4a0ab833f97fb141c01965b46fbf618075

Download Submit
memory/1652-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1652-1-0x000000007207D000-0x0000000072088000-memory.dmp

Filesize
44KB

Download
memory/1652-16-0x000000007207D000-0x0000000072088000-memory.dmp

Filesize
44KB

Download
memory/1652-18-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1652-19-0x000000007207D000-0x0000000072088000-memory.dmp

Filesize
44KB

Download
memory/2892-13-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2892-15-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2892-14-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download

Analysis

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