8849ec2803d8ff9bc1dad3148efb8a0033a29558d5140d53007d28226e99307d

Analysis

max time kernel
141s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
03/12/2022, 17:09

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General

Target

8849ec2803d8ff9bc1dad3148efb8a0033a29558d5140d53007d28226e99307d.exe
Size

56KB
MD5

84b2b0d5fbcf7cfb67651107ed06dce8
SHA1

3fa7799851207d739381c7450d70018890bcfa6d
SHA256

8849ec2803d8ff9bc1dad3148efb8a0033a29558d5140d53007d28226e99307d
SHA512

4130be668610b979a918922ac3eb5185bae7ba94b7d3da9a8a0b65b8ffb9c6cfb243fc88e499fc74d06958d07b1229b03ecd02041fba38da3631aa39ba6cfa6c
SSDEEP

768:YkOoNQRx7W32mLBtBTdiR8bVSnMQS7qoZkXdWHKCH+qRKv+YfTa8Ua0x:YUKRx3mttdd72o7quUYqCH1a+AFU1x

Score

8^/10

persistence upx

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
516	svchost.exe
1276	svchost.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3404-132-0x0000000000400000-0x0000000000422000-memory.dmp	upx
behavioral2/memory/3404-139-0x0000000000400000-0x0000000000422000-memory.dmp	upx
behavioral2/files/0x0002000000022e64-143.dat	upx
behavioral2/files/0x0002000000022e64-142.dat	upx
behavioral2/memory/516-147-0x0000000000400000-0x0000000000422000-memory.dmp	upx
behavioral2/files/0x0002000000022e64-150.dat	upx
behavioral2/memory/516-153-0x0000000000400000-0x0000000000422000-memory.dmp	upx

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	8849ec2803d8ff9bc1dad3148efb8a0033a29558d5140d53007d28226e99307d.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Windows Updates = "C:\\Users\\Admin\\AppData\\Local\\svchost.exe"	svchost.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 3404 set thread context of 308	3404	8849ec2803d8ff9bc1dad3148efb8a0033a29558d5140d53007d28226e99307d.exe	82
PID 516 set thread context of 1276	516	svchost.exe	84

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

System Information Discovery
T1082

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3404	8849ec2803d8ff9bc1dad3148efb8a0033a29558d5140d53007d28226e99307d.exe
516	svchost.exe

Suspicious use of WriteProcessMemory 29 IoCs

description	pid	Process	procid_target
PID 3404 wrote to memory of 308	3404	8849ec2803d8ff9bc1dad3148efb8a0033a29558d5140d53007d28226e99307d.exe	82
PID 3404 wrote to memory of 308	3404	8849ec2803d8ff9bc1dad3148efb8a0033a29558d5140d53007d28226e99307d.exe	82
PID 3404 wrote to memory of 308	3404	8849ec2803d8ff9bc1dad3148efb8a0033a29558d5140d53007d28226e99307d.exe	82
PID 3404 wrote to memory of 308	3404	8849ec2803d8ff9bc1dad3148efb8a0033a29558d5140d53007d28226e99307d.exe	82
PID 3404 wrote to memory of 308	3404	8849ec2803d8ff9bc1dad3148efb8a0033a29558d5140d53007d28226e99307d.exe	82
PID 3404 wrote to memory of 308	3404	8849ec2803d8ff9bc1dad3148efb8a0033a29558d5140d53007d28226e99307d.exe	82
PID 3404 wrote to memory of 308	3404	8849ec2803d8ff9bc1dad3148efb8a0033a29558d5140d53007d28226e99307d.exe	82
PID 3404 wrote to memory of 308	3404	8849ec2803d8ff9bc1dad3148efb8a0033a29558d5140d53007d28226e99307d.exe	82
PID 3404 wrote to memory of 308	3404	8849ec2803d8ff9bc1dad3148efb8a0033a29558d5140d53007d28226e99307d.exe	82
PID 3404 wrote to memory of 308	3404	8849ec2803d8ff9bc1dad3148efb8a0033a29558d5140d53007d28226e99307d.exe	82
PID 3404 wrote to memory of 308	3404	8849ec2803d8ff9bc1dad3148efb8a0033a29558d5140d53007d28226e99307d.exe	82
PID 3404 wrote to memory of 308	3404	8849ec2803d8ff9bc1dad3148efb8a0033a29558d5140d53007d28226e99307d.exe	82
PID 3404 wrote to memory of 308	3404	8849ec2803d8ff9bc1dad3148efb8a0033a29558d5140d53007d28226e99307d.exe	82
PID 308 wrote to memory of 516	308	8849ec2803d8ff9bc1dad3148efb8a0033a29558d5140d53007d28226e99307d.exe	83
PID 308 wrote to memory of 516	308	8849ec2803d8ff9bc1dad3148efb8a0033a29558d5140d53007d28226e99307d.exe	83
PID 308 wrote to memory of 516	308	8849ec2803d8ff9bc1dad3148efb8a0033a29558d5140d53007d28226e99307d.exe	83
PID 516 wrote to memory of 1276	516	svchost.exe	84
PID 516 wrote to memory of 1276	516	svchost.exe	84
PID 516 wrote to memory of 1276	516	svchost.exe	84
PID 516 wrote to memory of 1276	516	svchost.exe	84
PID 516 wrote to memory of 1276	516	svchost.exe	84
PID 516 wrote to memory of 1276	516	svchost.exe	84
PID 516 wrote to memory of 1276	516	svchost.exe	84
PID 516 wrote to memory of 1276	516	svchost.exe	84
PID 516 wrote to memory of 1276	516	svchost.exe	84
PID 516 wrote to memory of 1276	516	svchost.exe	84
PID 516 wrote to memory of 1276	516	svchost.exe	84
PID 516 wrote to memory of 1276	516	svchost.exe	84
PID 516 wrote to memory of 1276	516	svchost.exe	84

C:\Users\Admin\AppData\Local\Temp\8849ec2803d8ff9bc1dad3148efb8a0033a29558d5140d53007d28226e99307d.exe
"C:\Users\Admin\AppData\Local\Temp\8849ec2803d8ff9bc1dad3148efb8a0033a29558d5140d53007d28226e99307d.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3404
- C:\Users\Admin\AppData\Local\Temp\8849ec2803d8ff9bc1dad3148efb8a0033a29558d5140d53007d28226e99307d.exe
  C:\Users\Admin\AppData\Local\Temp\8849ec2803d8ff9bc1dad3148efb8a0033a29558d5140d53007d28226e99307d.exe
  2⤵
  - Checks computer location settings
  - Suspicious use of WriteProcessMemory
  PID:308
- - C:\Users\Admin\AppData\Local\svchost.exe
    "C:\Users\Admin\AppData\Local\svchost.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:516
  - - C:\Users\Admin\AppData\Local\svchost.exe
      C:\Users\Admin\AppData\Local\svchost.exe
      4⤵
      Executes dropped EXE
      Adds Run key to start application
      PID:1276

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\svchost.exe

Filesize
56KB

MD5
84b2b0d5fbcf7cfb67651107ed06dce8

SHA1
3fa7799851207d739381c7450d70018890bcfa6d

SHA256
8849ec2803d8ff9bc1dad3148efb8a0033a29558d5140d53007d28226e99307d

SHA512
4130be668610b979a918922ac3eb5185bae7ba94b7d3da9a8a0b65b8ffb9c6cfb243fc88e499fc74d06958d07b1229b03ecd02041fba38da3631aa39ba6cfa6c

Download Submit
C:\Users\Admin\AppData\Local\svchost.exe

Filesize
56KB

MD5
84b2b0d5fbcf7cfb67651107ed06dce8

SHA1
3fa7799851207d739381c7450d70018890bcfa6d

SHA256
8849ec2803d8ff9bc1dad3148efb8a0033a29558d5140d53007d28226e99307d

SHA512
4130be668610b979a918922ac3eb5185bae7ba94b7d3da9a8a0b65b8ffb9c6cfb243fc88e499fc74d06958d07b1229b03ecd02041fba38da3631aa39ba6cfa6c

Download Submit
C:\Users\Admin\AppData\Local\svchost.exe

Filesize
56KB

MD5
84b2b0d5fbcf7cfb67651107ed06dce8

SHA1
3fa7799851207d739381c7450d70018890bcfa6d

SHA256
8849ec2803d8ff9bc1dad3148efb8a0033a29558d5140d53007d28226e99307d

SHA512
4130be668610b979a918922ac3eb5185bae7ba94b7d3da9a8a0b65b8ffb9c6cfb243fc88e499fc74d06958d07b1229b03ecd02041fba38da3631aa39ba6cfa6c

Download Submit
memory/308-136-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/308-137-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/308-138-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/308-140-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/308-144-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/516-153-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/516-147-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/1276-152-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/1276-154-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/1276-155-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/3404-132-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/3404-139-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download