ef338d33a6ee02ccd0173815e45ec6b2d01c4da8c0bddc0c03f4c9fb953332f4

Analysis

max time kernel
50s
max time network
139s
platform
windows10-1703_x64
resource
win10-20230220-en
resource tags

arch:x64arch:x86image:win10-20230220-enlocale:en-usos:windows10-1703-x64system
submitted
28-03-2023 06:45

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General

Target

ef338d33a6ee02ccd0173815e45ec6b2d01c4da8c0bddc0c03f4c9fb953332f4.exe
Size

277KB
MD5

6b3d0355159a08eea7efe54112e04bc2
SHA1

1e5b008b28e287303bceecfe858647c4dba8bcfb
SHA256

ef338d33a6ee02ccd0173815e45ec6b2d01c4da8c0bddc0c03f4c9fb953332f4
SHA512

72f61828af137a8b6f93c519086dd4efb4722ed40af8c597a3d64882f5997f6c2b85b046d76d77eb1fc9dd94f765ddab0c1c82d85c2432c2764451cc2df809b2
SSDEEP

6144:sXzKdNY49u8rVnzlpugmv+3gkCK2xE01netf6:ja4AMlnI0B01C6

Score

7^/10

upx

Malware Config

Signatures

Executes dropped EXE 2 IoCs

Processes:

ITS SB App Switch.exeITS SB App Switch.exe

pid process

992 ITS SB App Switch.exe
2344 ITS SB App Switch.exe

pid	process
992	ITS SB App Switch.exe
2344	ITS SB App Switch.exe

UPX packed file 2 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/4124-117-0x0000000000E20000-0x0000000000EC0000-memory.dmp	upx
behavioral1/memory/4124-124-0x0000000000E20000-0x0000000000EC0000-memory.dmp	upx

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

ef338d33a6ee02ccd0173815e45ec6b2d01c4da8c0bddc0c03f4c9fb953332f4.exe

pid	process
4124	ef338d33a6ee02ccd0173815e45ec6b2d01c4da8c0bddc0c03f4c9fb953332f4.exe
4124	ef338d33a6ee02ccd0173815e45ec6b2d01c4da8c0bddc0c03f4c9fb953332f4.exe
4124	ef338d33a6ee02ccd0173815e45ec6b2d01c4da8c0bddc0c03f4c9fb953332f4.exe
4124	ef338d33a6ee02ccd0173815e45ec6b2d01c4da8c0bddc0c03f4c9fb953332f4.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

ef338d33a6ee02ccd0173815e45ec6b2d01c4da8c0bddc0c03f4c9fb953332f4.exe

description	pid	process	target process
PID 4124 wrote to memory of 992	4124	ef338d33a6ee02ccd0173815e45ec6b2d01c4da8c0bddc0c03f4c9fb953332f4.exe	ITS SB App Switch.exe
PID 4124 wrote to memory of 992	4124	ef338d33a6ee02ccd0173815e45ec6b2d01c4da8c0bddc0c03f4c9fb953332f4.exe	ITS SB App Switch.exe
PID 4124 wrote to memory of 992	4124	ef338d33a6ee02ccd0173815e45ec6b2d01c4da8c0bddc0c03f4c9fb953332f4.exe	ITS SB App Switch.exe
PID 4124 wrote to memory of 2344	4124	ef338d33a6ee02ccd0173815e45ec6b2d01c4da8c0bddc0c03f4c9fb953332f4.exe	ITS SB App Switch.exe
PID 4124 wrote to memory of 2344	4124	ef338d33a6ee02ccd0173815e45ec6b2d01c4da8c0bddc0c03f4c9fb953332f4.exe	ITS SB App Switch.exe
PID 4124 wrote to memory of 2344	4124	ef338d33a6ee02ccd0173815e45ec6b2d01c4da8c0bddc0c03f4c9fb953332f4.exe	ITS SB App Switch.exe

C:\Users\Admin\AppData\Local\Temp\ef338d33a6ee02ccd0173815e45ec6b2d01c4da8c0bddc0c03f4c9fb953332f4.exe
"C:\Users\Admin\AppData\Local\Temp\ef338d33a6ee02ccd0173815e45ec6b2d01c4da8c0bddc0c03f4c9fb953332f4.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4124

C:\Users\Admin\AppData\Local\Temp\ITS\wincsecb\264\Production\ITS SB App Switch.exe
"C:\Users\Admin\AppData\Local\Temp\ITS\wincsecb\264\Production\ITS SB App Switch.exe"
2⤵
- Executes dropped EXE
PID:992

C:\Users\Admin\AppData\Local\Temp\ITS\wincsecb\264\Production\ITS SB App Switch.exe
"C:\Users\Admin\AppData\Local\Temp\ITS\wincsecb\264\Production\ITS SB App Switch.exe"
2⤵
- Executes dropped EXE
PID:2344

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\ITS\wincsecb\264\Production\ITS SB App Switch.exe
Filesize
87KB

MD5
368332fca74f48697d842c5f4698ae1d

SHA1
0275153a1e62bd0eca0b02168895517ed66aac56

SHA256
3a4a5b128c3a042010824fd33b719466b0d9320aa051ca3d5f1690124766ad59

SHA512
fd9f1d1a4337e00fef5e9ea10a7fdf553e98df2cf2fdf818b68689a89de3c1d324de389e0c9ef863fef08a3dff8150db173b2203e9e92efaea67865e8d2805b5

Download Submit
C:\Users\Admin\AppData\Local\Temp\ITS\wincsecb\264\Production\ITS SB App Switch.exe
Filesize
87KB

MD5
368332fca74f48697d842c5f4698ae1d

SHA1
0275153a1e62bd0eca0b02168895517ed66aac56

SHA256
3a4a5b128c3a042010824fd33b719466b0d9320aa051ca3d5f1690124766ad59

SHA512
fd9f1d1a4337e00fef5e9ea10a7fdf553e98df2cf2fdf818b68689a89de3c1d324de389e0c9ef863fef08a3dff8150db173b2203e9e92efaea67865e8d2805b5

Download Submit
C:\Users\Admin\AppData\Local\Temp\ITS\wincsecb\264\Production\ITS SB App Switch.exe
Filesize
87KB

MD5
368332fca74f48697d842c5f4698ae1d

SHA1
0275153a1e62bd0eca0b02168895517ed66aac56

SHA256
3a4a5b128c3a042010824fd33b719466b0d9320aa051ca3d5f1690124766ad59

SHA512
fd9f1d1a4337e00fef5e9ea10a7fdf553e98df2cf2fdf818b68689a89de3c1d324de389e0c9ef863fef08a3dff8150db173b2203e9e92efaea67865e8d2805b5

Download Submit
memory/4124-117-0x0000000000E20000-0x0000000000EC0000-memory.dmp

Filesize
640KB

Download
memory/4124-124-0x0000000000E20000-0x0000000000EC0000-memory.dmp

Filesize
640KB

Download