0db903b51a03a5f84b4caca17a2caee2956e678bd453e9ba52de6cf6d4c6772b

Analysis

max time kernel
139s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20230703-en
resource tags

arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
submitted
17/07/2023, 13:02

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General

Target

85b9c7b0755e7d_JC.exe
Size

77KB
MD5

85b9c7b0755e7d4a99ce5cd66317dfb3
SHA1

f8df5b285138a828c1e72029de4a00fe3bcb2f25
SHA256

0db903b51a03a5f84b4caca17a2caee2956e678bd453e9ba52de6cf6d4c6772b
SHA512

6d73648e10ac2a29dc372b227bd16d84acc5b9c5a660e2e9c36662ad0ffe417a60d772a8811786002ee17ce0d510d4bafc0818882596bd4441989b6dcd1cfd00
SSDEEP

1536:T6QFElP6n+gxmddpMOtEvwDpjwaxTNUOTdSWCPU:T6a+rdOOtEvwDpjNj

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4176143399-3250363947-192774652-1000\Control Panel\International\Geo\Nation	85b9c7b0755e7d_JC.exe

Executes dropped EXE 1 IoCs

pid	Process
5080	asih.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4648-133-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/files/0x00060000000231d8-146.dat	upx
behavioral2/files/0x00060000000231d8-148.dat	upx
behavioral2/files/0x00060000000231d8-149.dat	upx
behavioral2/memory/4648-150-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/memory/5080-159-0x0000000000500000-0x0000000000510000-memory.dmp	upx

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4648 wrote to memory of 5080	4648	85b9c7b0755e7d_JC.exe	84
PID 4648 wrote to memory of 5080	4648	85b9c7b0755e7d_JC.exe	84
PID 4648 wrote to memory of 5080	4648	85b9c7b0755e7d_JC.exe	84

C:\Users\Admin\AppData\Local\Temp\85b9c7b0755e7d_JC.exe
"C:\Users\Admin\AppData\Local\Temp\85b9c7b0755e7d_JC.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4648
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:5080

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

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\Temp\asih.exe

Filesize
77KB

MD5
6e703b789f059f0663aba16de6004521

SHA1
89de777568615e052cab942672d710b4fe0d4d2d

SHA256
f201b40eb05ff84b1807d046c5386e9bef9a991a7cd80994c9cc009d7e858bae

SHA512
cb068c1365b2504ce93b65d7b06daf8df30b591517051fd74551fc8517e65dce8027219c636bfcf76423ecbe1d282d1ae231c29599ad385a2a2b424f786260f9

Download Submit
C:\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
77KB

MD5
6e703b789f059f0663aba16de6004521

SHA1
89de777568615e052cab942672d710b4fe0d4d2d

SHA256
f201b40eb05ff84b1807d046c5386e9bef9a991a7cd80994c9cc009d7e858bae

SHA512
cb068c1365b2504ce93b65d7b06daf8df30b591517051fd74551fc8517e65dce8027219c636bfcf76423ecbe1d282d1ae231c29599ad385a2a2b424f786260f9

Download Submit
C:\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
77KB

MD5
6e703b789f059f0663aba16de6004521

SHA1
89de777568615e052cab942672d710b4fe0d4d2d

SHA256
f201b40eb05ff84b1807d046c5386e9bef9a991a7cd80994c9cc009d7e858bae

SHA512
cb068c1365b2504ce93b65d7b06daf8df30b591517051fd74551fc8517e65dce8027219c636bfcf76423ecbe1d282d1ae231c29599ad385a2a2b424f786260f9

Download Submit
memory/4648-133-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/4648-134-0x00000000007C0000-0x00000000007C6000-memory.dmp

Filesize
24KB

Download
memory/4648-135-0x00000000007C0000-0x00000000007C6000-memory.dmp

Filesize
24KB

Download
memory/4648-136-0x0000000002080000-0x0000000002086000-memory.dmp

Filesize
24KB

Download
memory/4648-150-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/5080-152-0x0000000000650000-0x0000000000656000-memory.dmp

Filesize
24KB

Download
memory/5080-153-0x0000000000630000-0x0000000000636000-memory.dmp

Filesize
24KB

Download
memory/5080-159-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download