agenttesla | f8fb6c4ac020b9b8116781833ad5f536979a2e21986601c55928a2bfcc3036ce

General

Target

f8fb6c4ac020b9b8116781833ad5f536979a2e21986601c55928a2bfcc3036ce.xlam
Size

803KB
MD5

c4d3d1b1842e510619920b9492900250
SHA1

25749eb1073ce81fd72314dda9efab61adb70b3f
SHA256

f8fb6c4ac020b9b8116781833ad5f536979a2e21986601c55928a2bfcc3036ce
SHA512

dd3c9e5590f43fa891142106169a90d2ec986f3db45a641d38c4af326ac7b600eb9442b4fca0b0fd3f096b547cce6162535bbc67d6fe534e1f7c3c44d4d72919
SSDEEP

12288:5UDmtDq7MeSQA4rwbZswK/j+c61E/y7CEBbJlFE54zuvBBhvWHK0QbJXaw71DrGb:WDf4lYrwzKrV6S/yBruv/hHxbdD1Drub

Score

10^/10

agenttesla discovery keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.worlorderbillions.top
Port:
587
Username:
[email protected]
Password:
ORKSEMuW*kNA
Email To:
[email protected]

Signatures

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

Blocklisted process makes network request 1 IoCs

flow	pid	Process
5	2736	EQNEDT32.EXE

Downloads MZ/PE file

Executes dropped EXE 1 IoCs

pid	Process
2772	zwuonypqu.exe

Loads dropped DLL 1 IoCs

pid	Process
2736	EQNEDT32.EXE

AutoIT Executable 1 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral1/files/0x0007000000015d87-6.dat	autoit_exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2772 set thread context of 2572	2772	zwuonypqu.exe	34

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	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	EQNEDT32.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	zwuonypqu.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegSvcs.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
2736	EQNEDT32.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2272	EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2572	RegSvcs.exe
2572	RegSvcs.exe

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
2772	zwuonypqu.exe
2772	zwuonypqu.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2572	RegSvcs.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2272	EXCEL.EXE
2272	EXCEL.EXE
2272	EXCEL.EXE

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2736 wrote to memory of 2772	2736	EQNEDT32.EXE	33
PID 2736 wrote to memory of 2772	2736	EQNEDT32.EXE	33
PID 2736 wrote to memory of 2772	2736	EQNEDT32.EXE	33
PID 2736 wrote to memory of 2772	2736	EQNEDT32.EXE	33
PID 2772 wrote to memory of 2572	2772	zwuonypqu.exe	34
PID 2772 wrote to memory of 2572	2772	zwuonypqu.exe	34
PID 2772 wrote to memory of 2572	2772	zwuonypqu.exe	34
PID 2772 wrote to memory of 2572	2772	zwuonypqu.exe	34
PID 2772 wrote to memory of 2572	2772	zwuonypqu.exe	34
PID 2772 wrote to memory of 2572	2772	zwuonypqu.exe	34
PID 2772 wrote to memory of 2572	2772	zwuonypqu.exe	34
PID 2772 wrote to memory of 2572	2772	zwuonypqu.exe	34

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\f8fb6c4ac020b9b8116781833ad5f536979a2e21986601c55928a2bfcc3036ce.xlam
1⤵
- System Location Discovery: System Language Discovery
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:2272

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:2736
- C:\Users\Admin\AppData\Local\Temp\zwuonypqu.exe
  C:\Users\Admin\AppData\Local\Temp\zwuonypqu.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:2772
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
    C:\Users\Admin\AppData\Local\Temp\zwuonypqu.exe
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2572

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

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

\Users\Admin\AppData\Local\Temp\zwuonypqu.exe

Filesize
1.1MB

MD5
e393c90747e935149ecabf5af936a07a

SHA1
2142b77e3d70dc270461a9f474e28be74b431f4c

SHA256
aa896f6d492af898ab32fcbc5096c415444b86c8cc609b14dd4b2985597a9eaa

SHA512
780a6b5ecb5b0e32def470c002c323faf53c1e09086543f4b4437761752d411f3b95b7ab58856e0d126c8141e275935af4f79954047c36969262b33ee77f567f

Download Submit
memory/2272-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/2272-1-0x0000000072A9D000-0x0000000072AA8000-memory.dmp

Filesize
44KB

Download
memory/2272-22-0x0000000072A9D000-0x0000000072AA8000-memory.dmp

Filesize
44KB

Download
memory/2572-13-0x0000000000090000-0x00000000000D0000-memory.dmp

Filesize
256KB

Download
memory/2572-21-0x0000000000090000-0x00000000000D0000-memory.dmp

Filesize
256KB

Download
memory/2572-18-0x0000000000090000-0x00000000000D0000-memory.dmp

Filesize
256KB

Download
memory/2572-14-0x0000000000090000-0x00000000000D0000-memory.dmp

Filesize
256KB

Download

Analysis

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