6729d5ff943abd8bf0455587c7fc537767829372290cde97627864cc34cd826c

Analysis

max time kernel
141s
max time network
105s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
27-07-2024 17:42

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General

Target

SurfStreamV1.001_XiaoSD.exe
Size

1.3MB
MD5

deb609542bfec8bb0c9b71566438ba2a
SHA1

d5a71a062f14b238632719bc34d1f15a8d0fe409
SHA256

b96f9b17dfbbc268cd5a0ed886f1811d2efcca4308e5836d81820484bb096b31
SHA512

44b001c350f3326bf270ffc3190f6e95c34f404fca9c555a9f09bac665de938e9d230124d80c152aa85e75db12fea75f1b20dc728207228a70f5bca7cd89c494
SSDEEP

24576:BI39dy8w0n22M7TvxFa8PHf2tq5sgrx69ygDQbaFVb6hesGrWqP/jjYhJUFZYb:B6d3n22Svy8PutirMD0abVsGqqXjEUi

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
3632	is-UKO9T.tmp

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	SurfStreamV1.001_XiaoSD.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	is-UKO9T.tmp

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4820 wrote to memory of 3632	4820	SurfStreamV1.001_XiaoSD.exe	84
PID 4820 wrote to memory of 3632	4820	SurfStreamV1.001_XiaoSD.exe	84
PID 4820 wrote to memory of 3632	4820	SurfStreamV1.001_XiaoSD.exe	84

C:\Users\Admin\AppData\Local\Temp\SurfStreamV1.001_XiaoSD.exe
"C:\Users\Admin\AppData\Local\Temp\SurfStreamV1.001_XiaoSD.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4820
- C:\Users\Admin\AppData\Local\Temp\is-97THJ.tmp\is-UKO9T.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-97THJ.tmp\is-UKO9T.tmp" /SL4 $A0042 "C:\Users\Admin\AppData\Local\Temp\SurfStreamV1.001_XiaoSD.exe" 1142941 49664
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:3632

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\is-97THJ.tmp\is-UKO9T.tmp

Filesize
633KB

MD5
ac4d836dcc604b505f2fc590430fcf55

SHA1
8c4f9e2f7c96e06867c0ae1219c561d1bc63f109

SHA256
128b9efb33d1e3f74d7d113be3f2041d92cf87ccc054402f96db86439f1c0596

SHA512
85748bfbdde347b46baaca3db67763e9a34cab0f907c451e56d0f03af318f5c11bcc2b7d52be2f63fb2896f600fa6c6e09061a673df70f8b81f3c231c93c362e

Download Submit
memory/3632-10-0x0000000000400000-0x00000000004CC000-memory.dmp

Filesize
816KB

Download
memory/3632-12-0x0000000000400000-0x00000000004CC000-memory.dmp

Filesize
816KB

Download
memory/4820-0-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/4820-1-0x0000000000401000-0x000000000040A000-memory.dmp

Filesize
36KB

Download
memory/4820-11-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download