ef1a4c88c173ab769a0bc1885458b1099814d6983fbe8bdfd22b80bbc148ef79

General

Target

ef1a4c88c173ab769a0bc1885458b1099814d6983fbe8bdfd22b80bbc148ef79.exe
Size

1.0MB
MD5

51decc9220f888d5fbd04bfd23af8998
SHA1

5a0b48509436645891a578fae5123fc00512fdb9
SHA256

ef1a4c88c173ab769a0bc1885458b1099814d6983fbe8bdfd22b80bbc148ef79
SHA512

f99b691d99e18fc9307f06a53429bd4d960482f3f4a46b761add6092631695832622eba9a18aa7091c87d2e9e9a763eeb45634b26118b48fada9a38ebe1fca59
SSDEEP

24576:bxy9KqiQe0e4TNWS9rU44M3ZzPslX35ZbrgTbZC6DeoKp3wav:9yMqiQe0e45WqQCzg356T99eoaLv

Score

8^/10

discovery persistence spyware stealer upx

Malware Config

Signatures

UPX packed file 2 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/1944-140-0x0000000000400000-0x0000000000645000-memory.dmp	upx
behavioral2/memory/1944-141-0x0000000000400000-0x0000000000645000-memory.dmp	upx

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

Data from Local System
T1005

Credentials in Files
T1081

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	ef1a4c88c173ab769a0bc1885458b1099814d6983fbe8bdfd22b80bbc148ef79.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\NetworkChecker = "C:\\Users\\Admin\\AppData\\Local\\Temp\\ef1a4c88c173ab769a0bc1885458b1099814d6983fbe8bdfd22b80bbc148ef79.exe"	ef1a4c88c173ab769a0bc1885458b1099814d6983fbe8bdfd22b80bbc148ef79.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4920 set thread context of 1944	4920	ef1a4c88c173ab769a0bc1885458b1099814d6983fbe8bdfd22b80bbc148ef79.exe	82

Modifies Internet Explorer settings 1 TTPs 4 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\Main	ef1a4c88c173ab769a0bc1885458b1099814d6983fbe8bdfd22b80bbc148ef79.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\Main\DefaultCompressedRecord = c880f97f733df5f987255cb3e32ebbd745f61ca492847f6016dd702be56065ba674ecc0a386f4da24f231327641d8718f6c0db65178732b5501be9a65b5db840c66220fae5f3b3803f179cea1487113b10cccfa035677f4060a31132dae3a2b98661273ee72f3f	ef1a4c88c173ab769a0bc1885458b1099814d6983fbe8bdfd22b80bbc148ef79.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\Main\RecordModifiedMax = "DMNWQgk3bBjDfOW7VLSUXd2UhCImgzSzsorQBsjYG/RowdEA63j0wKEG8hMpBmDvpg=="	ef1a4c88c173ab769a0bc1885458b1099814d6983fbe8bdfd22b80bbc148ef79.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FlagsModifiedValid = 0000000000000000	ef1a4c88c173ab769a0bc1885458b1099814d6983fbe8bdfd22b80bbc148ef79.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4920	ef1a4c88c173ab769a0bc1885458b1099814d6983fbe8bdfd22b80bbc148ef79.exe
4920	ef1a4c88c173ab769a0bc1885458b1099814d6983fbe8bdfd22b80bbc148ef79.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4920	ef1a4c88c173ab769a0bc1885458b1099814d6983fbe8bdfd22b80bbc148ef79.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 4920 wrote to memory of 4628	4920	ef1a4c88c173ab769a0bc1885458b1099814d6983fbe8bdfd22b80bbc148ef79.exe	80
PID 4920 wrote to memory of 4628	4920	ef1a4c88c173ab769a0bc1885458b1099814d6983fbe8bdfd22b80bbc148ef79.exe	80
PID 4920 wrote to memory of 4628	4920	ef1a4c88c173ab769a0bc1885458b1099814d6983fbe8bdfd22b80bbc148ef79.exe	80
PID 4920 wrote to memory of 4432	4920	ef1a4c88c173ab769a0bc1885458b1099814d6983fbe8bdfd22b80bbc148ef79.exe	81
PID 4920 wrote to memory of 4432	4920	ef1a4c88c173ab769a0bc1885458b1099814d6983fbe8bdfd22b80bbc148ef79.exe	81
PID 4920 wrote to memory of 4432	4920	ef1a4c88c173ab769a0bc1885458b1099814d6983fbe8bdfd22b80bbc148ef79.exe	81
PID 4920 wrote to memory of 1944	4920	ef1a4c88c173ab769a0bc1885458b1099814d6983fbe8bdfd22b80bbc148ef79.exe	82
PID 4920 wrote to memory of 1944	4920	ef1a4c88c173ab769a0bc1885458b1099814d6983fbe8bdfd22b80bbc148ef79.exe	82
PID 4920 wrote to memory of 1944	4920	ef1a4c88c173ab769a0bc1885458b1099814d6983fbe8bdfd22b80bbc148ef79.exe	82
PID 4920 wrote to memory of 1944	4920	ef1a4c88c173ab769a0bc1885458b1099814d6983fbe8bdfd22b80bbc148ef79.exe	82
PID 4920 wrote to memory of 1944	4920	ef1a4c88c173ab769a0bc1885458b1099814d6983fbe8bdfd22b80bbc148ef79.exe	82
PID 4920 wrote to memory of 1944	4920	ef1a4c88c173ab769a0bc1885458b1099814d6983fbe8bdfd22b80bbc148ef79.exe	82
PID 4920 wrote to memory of 1944	4920	ef1a4c88c173ab769a0bc1885458b1099814d6983fbe8bdfd22b80bbc148ef79.exe	82
PID 4920 wrote to memory of 1944	4920	ef1a4c88c173ab769a0bc1885458b1099814d6983fbe8bdfd22b80bbc148ef79.exe	82
PID 4920 wrote to memory of 1944	4920	ef1a4c88c173ab769a0bc1885458b1099814d6983fbe8bdfd22b80bbc148ef79.exe	82

C:\Users\Admin\AppData\Local\Temp\ef1a4c88c173ab769a0bc1885458b1099814d6983fbe8bdfd22b80bbc148ef79.exe
"C:\Users\Admin\AppData\Local\Temp\ef1a4c88c173ab769a0bc1885458b1099814d6983fbe8bdfd22b80bbc148ef79.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4920
- C:\Users\Admin\AppData\Local\Temp\ef1a4c88c173ab769a0bc1885458b1099814d6983fbe8bdfd22b80bbc148ef79.exe
  C:\Users\Admin\AppData\Local\Temp\ef1a4c88c173ab769a0bc1885458b1099814d6983fbe8bdfd22b80bbc148ef79.exe
  2⤵
  PID:4628
- C:\Users\Admin\AppData\Local\Temp\ef1a4c88c173ab769a0bc1885458b1099814d6983fbe8bdfd22b80bbc148ef79.exe
  C:\Users\Admin\AppData\Local\Temp\ef1a4c88c173ab769a0bc1885458b1099814d6983fbe8bdfd22b80bbc148ef79.exe
  2⤵
  PID:4432
- C:\Users\Admin\AppData\Local\Temp\ef1a4c88c173ab769a0bc1885458b1099814d6983fbe8bdfd22b80bbc148ef79.exe
  C:\Users\Admin\AppData\Local\Temp\ef1a4c88c173ab769a0bc1885458b1099814d6983fbe8bdfd22b80bbc148ef79.exe
  2⤵
  - Adds Run key to start application
  - Modifies Internet Explorer settings
  PID:1944

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Credentials in Files

1

T1081

Discovery

Query Registry

1

T1012

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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Downloads

memory/1944-135-0x0000000000400000-0x0000000000645000-memory.dmp

Filesize
2.3MB

Download
memory/1944-138-0x0000000000400000-0x0000000000645000-memory.dmp

Filesize
2.3MB

Download
memory/1944-139-0x0000000000400000-0x0000000000645000-memory.dmp

Filesize
2.3MB

Download
memory/1944-140-0x0000000000400000-0x0000000000645000-memory.dmp

Filesize
2.3MB

Download
memory/1944-141-0x0000000000400000-0x0000000000645000-memory.dmp

Filesize
2.3MB

Download
memory/4920-136-0x0000000000A10000-0x0000000000ACF000-memory.dmp

Filesize
764KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads