b7c75b1a0d8afb58187aa58db7ca1f33c59ab10165ed59a486dbaa626670335e

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240611-en
resource tags

arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
submitted
20-06-2024 02:16

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General

Target

b7c75b1a0d8afb58187aa58db7ca1f33c59ab10165ed59a486dbaa626670335e.exe
Size

35KB
MD5

73087bb93ac07f158534aa3a7335fe35
SHA1

e799f4899feaae339764115f33b30a52a83e4462
SHA256

b7c75b1a0d8afb58187aa58db7ca1f33c59ab10165ed59a486dbaa626670335e
SHA512

c4cc0ca9e6848786caa8724663324c21bcff1af9615acae60d980173ca939516942137f4b76970ad5684479b31d337fe2a211cbf7050515dba16598300bc7348
SSDEEP

768:N+/5kqPgZWZwOmso3OQ9fkeVMZjuNz1ZnTgmgJTw10PP+7:Gi8SWZwORZpduTZvWPPA

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-1-5-21-2447855248-390457009-3660902674-1000\Control Panel\International\Geo\Nation	b7c75b1a0d8afb58187aa58db7ca1f33c59ab10165ed59a486dbaa626670335e.exe

Executes dropped EXE 1 IoCs

pid	Process
5036	kyyjs.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral2/memory/976-0-0x0000000000400000-0x000000000040D000-memory.dmp	upx
behavioral2/files/0x000a000000023410-6.dat	upx
behavioral2/memory/5036-13-0x0000000000400000-0x000000000040D000-memory.dmp	upx
behavioral2/memory/976-14-0x0000000000400000-0x000000000040D000-memory.dmp	upx
behavioral2/memory/5036-15-0x0000000000400000-0x000000000040D000-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 976 wrote to memory of 5036	976	b7c75b1a0d8afb58187aa58db7ca1f33c59ab10165ed59a486dbaa626670335e.exe	84
PID 976 wrote to memory of 5036	976	b7c75b1a0d8afb58187aa58db7ca1f33c59ab10165ed59a486dbaa626670335e.exe	84
PID 976 wrote to memory of 5036	976	b7c75b1a0d8afb58187aa58db7ca1f33c59ab10165ed59a486dbaa626670335e.exe	84

C:\Users\Admin\AppData\Local\Temp\b7c75b1a0d8afb58187aa58db7ca1f33c59ab10165ed59a486dbaa626670335e.exe
"C:\Users\Admin\AppData\Local\Temp\b7c75b1a0d8afb58187aa58db7ca1f33c59ab10165ed59a486dbaa626670335e.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:976
- C:\Users\Admin\AppData\Local\Temp\kyyjs.exe
  "C:\Users\Admin\AppData\Local\Temp\kyyjs.exe"
  2⤵
  - Executes dropped EXE
  PID:5036

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

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\kyyjs.exe

Filesize
35KB

MD5
a3f15ea9706d107d8adec698b1d7728e

SHA1
2d513989791fa667b34a3229696d31f005069166

SHA256
d41836bf9e36d8d0f2b84391f2dff249a993571c869d1d91b2d940b5b51e5a4d

SHA512
a7fc3b73b1c8356d21b871b33b15c3579b0c4be652ac0a273ac91c00904333be4bc71230bb6d6bcecb66608a86903f5bc573bd5bb2da76024fa856e9d2c33c6e

Download Submit
memory/976-0-0x0000000000400000-0x000000000040D000-memory.dmp

Filesize
52KB

Download
memory/976-1-0x0000000000401000-0x0000000000403000-memory.dmp

Filesize
8KB

Download
memory/976-14-0x0000000000400000-0x000000000040D000-memory.dmp

Filesize
52KB

Download
memory/5036-13-0x0000000000400000-0x000000000040D000-memory.dmp

Filesize
52KB

Download
memory/5036-15-0x0000000000400000-0x000000000040D000-memory.dmp

Filesize
52KB

Download