agenttesla | 738707987b72581ad79125873cba6b2f4084638a46f6ae79fe4a39fd5cea2f8e

General

Target

738707987b72581ad79125873cba6b2f4084638a46f6ae79fe4a39fd5cea2f8e.xlam
Size

658KB
MD5

bbd5e5f3f0b564fdbb6c5730beb38f6e
SHA1

eaacf1cd766f9556a7efb283528edd536f2c10c3
SHA256

738707987b72581ad79125873cba6b2f4084638a46f6ae79fe4a39fd5cea2f8e
SHA512

9e47e888e7e5e39c79618235958a09e915511ff4152de091c3fb98a1e2099b6867efc7a772637d3b207d8e6e689801b851d5624a0535bfaf7df4119e9c48b7bf
SSDEEP

6144:qWWhzVPPsvIvG2ViKe4dPXdsCY9J5xi3MniJipLCJuluzCTItOyzA3cSWrkWMyrb:Al1Pfe4g5D5EMIJJ7A3K3VaP6qJ+Mi

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:
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
Agenttesla family
agenttesla

Blocklisted process makes network request 1 IoCs

flow	pid	Process
4	2796	EQNEDT32.EXE

Downloads MZ/PE file 1 IoCs

flow	pid	Process
4	2796	EQNEDT32.EXE

Executes dropped EXE 2 IoCs

pid	Process
1312	tdvvplwtyu.exe
2336	tdvvplwtyu.exe

Loads dropped DLL 3 IoCs

pid	Process
2796	EQNEDT32.EXE
2796	EQNEDT32.EXE
1312	tdvvplwtyu.exe

Reads WinSCP keys stored on the system 2 TTPs
Tries to access WinSCP stored sessions.
spyware stealer

Data from Local System
T1005

Credentials in Registry
T1552.002
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
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 stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1312 set thread context of 2336	1312	tdvvplwtyu.exe	33

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	tdvvplwtyu.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	tdvvplwtyu.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
2796	EQNEDT32.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
3008	EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1312	tdvvplwtyu.exe
1312	tdvvplwtyu.exe
2336	tdvvplwtyu.exe
2336	tdvvplwtyu.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1312	tdvvplwtyu.exe
Token: SeDebugPrivilege	2336	tdvvplwtyu.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
3008	EXCEL.EXE
3008	EXCEL.EXE
3008	EXCEL.EXE

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 2796 wrote to memory of 1312	2796	EQNEDT32.EXE	31
PID 2796 wrote to memory of 1312	2796	EQNEDT32.EXE	31
PID 2796 wrote to memory of 1312	2796	EQNEDT32.EXE	31
PID 2796 wrote to memory of 1312	2796	EQNEDT32.EXE	31
PID 1312 wrote to memory of 2336	1312	tdvvplwtyu.exe	33
PID 1312 wrote to memory of 2336	1312	tdvvplwtyu.exe	33
PID 1312 wrote to memory of 2336	1312	tdvvplwtyu.exe	33
PID 1312 wrote to memory of 2336	1312	tdvvplwtyu.exe	33
PID 1312 wrote to memory of 2336	1312	tdvvplwtyu.exe	33
PID 1312 wrote to memory of 2336	1312	tdvvplwtyu.exe	33
PID 1312 wrote to memory of 2336	1312	tdvvplwtyu.exe	33
PID 1312 wrote to memory of 2336	1312	tdvvplwtyu.exe	33
PID 1312 wrote to memory of 2336	1312	tdvvplwtyu.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\738707987b72581ad79125873cba6b2f4084638a46f6ae79fe4a39fd5cea2f8e.xlam
1⤵
- System Location Discovery: System Language Discovery
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:3008

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
- Downloads MZ/PE file
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Launches Equation Editor
- Suspicious use of WriteProcessMemory
PID:2796
- C:\Users\Admin\AppData\Local\Temp\tdvvplwtyu.exe
  C:\Users\Admin\AppData\Local\Temp\tdvvplwtyu.exe
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1312
- - C:\Users\Admin\AppData\Local\Temp\tdvvplwtyu.exe
    "C:\Users\Admin\AppData\Local\Temp\tdvvplwtyu.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2336

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

Unsecured Credentials

4

T1552

Credentials In Files

3

T1552.001

Credentials in Registry

1

T1552.002

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

4

T1005

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
800KB

MD5
0600056f1c1529834750d01b75a6f29f

SHA1
450cbd3c2f3010244d6c15b3e9908a470790c6ee

SHA256
19ea541ebe8c0c9ae2e091c23851e449ad265712b3f9f77dd2978bfb9178c0fa

SHA512
8abbc4e5bdc6399990cb081f522c8624016aa6939586756841f90afda25015e748928185b5d97c829bea8a4f7ca56ad0d4adaa836179f3cd59433fe723aa4caa

Download Submit
memory/1312-17-0x00000000004F0000-0x0000000000576000-memory.dmp

Filesize
536KB

Download
memory/1312-15-0x0000000000590000-0x00000000005AE000-memory.dmp

Filesize
120KB

Download
memory/1312-14-0x0000000001350000-0x000000000141A000-memory.dmp

Filesize
808KB

Download
memory/2336-23-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2336-22-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2336-25-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2336-28-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2336-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2336-19-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2336-31-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2336-30-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/3008-16-0x0000000071E4D000-0x0000000071E58000-memory.dmp

Filesize
44KB

Download
memory/3008-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/3008-1-0x0000000071E4D000-0x0000000071E58000-memory.dmp

Filesize
44KB

Download

Analysis

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