6729d5ff943abd8bf0455587c7fc537767829372290cde97627864cc34cd826c

Analysis

max time kernel
140s
max time network
123s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-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
2220	is-8AK1C.tmp

Loads dropped DLL 3 IoCs

pid	Process
2232	SurfStreamV1.001_XiaoSD.exe
2220	is-8AK1C.tmp
2220	is-8AK1C.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-8AK1C.tmp

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2220	is-8AK1C.tmp

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2232 wrote to memory of 2220	2232	SurfStreamV1.001_XiaoSD.exe	31
PID 2232 wrote to memory of 2220	2232	SurfStreamV1.001_XiaoSD.exe	31
PID 2232 wrote to memory of 2220	2232	SurfStreamV1.001_XiaoSD.exe	31
PID 2232 wrote to memory of 2220	2232	SurfStreamV1.001_XiaoSD.exe	31
PID 2232 wrote to memory of 2220	2232	SurfStreamV1.001_XiaoSD.exe	31
PID 2232 wrote to memory of 2220	2232	SurfStreamV1.001_XiaoSD.exe	31
PID 2232 wrote to memory of 2220	2232	SurfStreamV1.001_XiaoSD.exe	31

C:\Users\Admin\AppData\Local\Temp\SurfStreamV1.001_XiaoSD.exe
"C:\Users\Admin\AppData\Local\Temp\SurfStreamV1.001_XiaoSD.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2232
- C:\Users\Admin\AppData\Local\Temp\is-8B230.tmp\is-8AK1C.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-8B230.tmp\is-8AK1C.tmp" /SL4 $40128 "C:\Users\Admin\AppData\Local\Temp\SurfStreamV1.001_XiaoSD.exe" 1142941 49664
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: GetForegroundWindowSpam
  PID:2220

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

\Users\Admin\AppData\Local\Temp\is-0R114.tmp\_isetup\_shfoldr.dll

Filesize
22KB

MD5
92dc6ef532fbb4a5c3201469a5b5eb63

SHA1
3e89ff837147c16b4e41c30d6c796374e0b8e62c

SHA256
9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

SHA512
9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

Download Submit
\Users\Admin\AppData\Local\Temp\is-8B230.tmp\is-8AK1C.tmp

Filesize
633KB

MD5
ac4d836dcc604b505f2fc590430fcf55

SHA1
8c4f9e2f7c96e06867c0ae1219c561d1bc63f109

SHA256
128b9efb33d1e3f74d7d113be3f2041d92cf87ccc054402f96db86439f1c0596

SHA512
85748bfbdde347b46baaca3db67763e9a34cab0f907c451e56d0f03af318f5c11bcc2b7d52be2f63fb2896f600fa6c6e09061a673df70f8b81f3c231c93c362e

Download Submit
memory/2220-15-0x0000000000400000-0x00000000004CC000-memory.dmp

Filesize
816KB

Download
memory/2232-1-0x0000000000401000-0x000000000040A000-memory.dmp

Filesize
36KB

Download
memory/2232-0-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2232-14-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download