1b57f375d96fb427f3791b5e2ae53a702f8af0fd742d1ebf8ffa461d8848a0dc

Analysis

max time kernel
135s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
28-03-2023 17:42

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General

Target

1b57f375d96fb427f3791b5e2ae53a702f8af0fd742d1ebf8ffa461d8848a0dc.exe
Size

277KB
MD5

f1ac1bc18e531a9cbc65adfc7bea09ae
SHA1

238aa473d3c296c8e05651e442dd7b189fbca8ea
SHA256

1b57f375d96fb427f3791b5e2ae53a702f8af0fd742d1ebf8ffa461d8848a0dc
SHA512

871edc04b7f91161252d0db25567a8076e87041436b6f2be6f95f643b7c6ade38c312e4eee367dff43b708d60c70587d6c1438b7ca0d1f78b24bd32b0521f88d
SSDEEP

6144:1XzKdNY49u8rVU1tZKXzJTeB6IxACs2U701netl:ma4AxGzU0IpLU701S

Score

7^/10

upx

Malware Config

Signatures

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

1b57f375d96fb427f3791b5e2ae53a702f8af0fd742d1ebf8ffa461d8848a0dc.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\Control Panel\International\Geo\Nation	1b57f375d96fb427f3791b5e2ae53a702f8af0fd742d1ebf8ffa461d8848a0dc.exe

Executes dropped EXE 2 IoCs

Processes:

ITS SB App Switch.exeITS SB App Switch.exe

pid process

772 ITS SB App Switch.exe
1868 ITS SB App Switch.exe

pid	process
772	ITS SB App Switch.exe
1868	ITS SB App Switch.exe

UPX packed file 3 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/100-133-0x0000000000520000-0x00000000005C0000-memory.dmp	upx
behavioral1/memory/100-147-0x0000000000520000-0x00000000005C0000-memory.dmp	upx
behavioral1/memory/100-148-0x0000000000520000-0x00000000005C0000-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:

1b57f375d96fb427f3791b5e2ae53a702f8af0fd742d1ebf8ffa461d8848a0dc.exe

pid	process
100	1b57f375d96fb427f3791b5e2ae53a702f8af0fd742d1ebf8ffa461d8848a0dc.exe
100	1b57f375d96fb427f3791b5e2ae53a702f8af0fd742d1ebf8ffa461d8848a0dc.exe
100	1b57f375d96fb427f3791b5e2ae53a702f8af0fd742d1ebf8ffa461d8848a0dc.exe
100	1b57f375d96fb427f3791b5e2ae53a702f8af0fd742d1ebf8ffa461d8848a0dc.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

1b57f375d96fb427f3791b5e2ae53a702f8af0fd742d1ebf8ffa461d8848a0dc.exe

description	pid	process	target process
PID 100 wrote to memory of 772	100	1b57f375d96fb427f3791b5e2ae53a702f8af0fd742d1ebf8ffa461d8848a0dc.exe	ITS SB App Switch.exe
PID 100 wrote to memory of 772	100	1b57f375d96fb427f3791b5e2ae53a702f8af0fd742d1ebf8ffa461d8848a0dc.exe	ITS SB App Switch.exe
PID 100 wrote to memory of 772	100	1b57f375d96fb427f3791b5e2ae53a702f8af0fd742d1ebf8ffa461d8848a0dc.exe	ITS SB App Switch.exe
PID 100 wrote to memory of 1868	100	1b57f375d96fb427f3791b5e2ae53a702f8af0fd742d1ebf8ffa461d8848a0dc.exe	ITS SB App Switch.exe
PID 100 wrote to memory of 1868	100	1b57f375d96fb427f3791b5e2ae53a702f8af0fd742d1ebf8ffa461d8848a0dc.exe	ITS SB App Switch.exe
PID 100 wrote to memory of 1868	100	1b57f375d96fb427f3791b5e2ae53a702f8af0fd742d1ebf8ffa461d8848a0dc.exe	ITS SB App Switch.exe

C:\Users\Admin\AppData\Local\Temp\1b57f375d96fb427f3791b5e2ae53a702f8af0fd742d1ebf8ffa461d8848a0dc.exe
"C:\Users\Admin\AppData\Local\Temp\1b57f375d96fb427f3791b5e2ae53a702f8af0fd742d1ebf8ffa461d8848a0dc.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:100

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:772

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:1868

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

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/100-133-0x0000000000520000-0x00000000005C0000-memory.dmp

Filesize
640KB

Download
memory/100-147-0x0000000000520000-0x00000000005C0000-memory.dmp

Filesize
640KB

Download
memory/100-148-0x0000000000520000-0x00000000005C0000-memory.dmp

Filesize
640KB

Download