70271b4fcb612b10079b30ceea313e1b523ce91771502e068c40fa83759e4be4

Analysis

max time kernel
140s
max time network
122s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
25-07-2024 16:00

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General

Target

tcwsetup.exe
Size

19.3MB
MD5

f02664431a90ddb0efb4e5a92eb5d4b3
SHA1

8ba4f19a68ca8c946feccebe93a88fcb3d3ba160
SHA256

5ee9260e3e677ab81adc3ed964252b3130bfdf4697ce8c6e234c3d9cee6a3c25
SHA512

e2c42e6c750f61691c53b64017b4550cd9b9df402c2b8de74eb2d9a7d02653f4b285d9049a9c512296ae3893577d1b91011d4f8c961ff3d32fd331ad520b3ad4
SSDEEP

393216:1GUM+IL+hLfTUD2RQntL3Vk37QfQjDyI6sHqIx/MlI4SY5dIWmPY5Xlw95:1rjIL+NfTUD9nNY7QJnsHqUYI4SC67YW

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2392	tcwsetup.tmp

Loads dropped DLL 3 IoCs

pid	Process
2464	tcwsetup.exe
2392	tcwsetup.tmp
2392	tcwsetup.tmp

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	tcwsetup.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	tcwsetup.tmp

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2392	tcwsetup.tmp

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2464 wrote to memory of 2392	2464	tcwsetup.exe	30
PID 2464 wrote to memory of 2392	2464	tcwsetup.exe	30
PID 2464 wrote to memory of 2392	2464	tcwsetup.exe	30
PID 2464 wrote to memory of 2392	2464	tcwsetup.exe	30
PID 2464 wrote to memory of 2392	2464	tcwsetup.exe	30
PID 2464 wrote to memory of 2392	2464	tcwsetup.exe	30
PID 2464 wrote to memory of 2392	2464	tcwsetup.exe	30

C:\Users\Admin\AppData\Local\Temp\tcwsetup.exe
"C:\Users\Admin\AppData\Local\Temp\tcwsetup.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2464
- C:\Users\Admin\AppData\Local\Temp\is-BLTMQ.tmp\tcwsetup.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-BLTMQ.tmp\tcwsetup.tmp" /SL5="$400BE,19802875,140800,C:\Users\Admin\AppData\Local\Temp\tcwsetup.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: GetForegroundWindowSpam
  PID:2392

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

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-BLTMQ.tmp\tcwsetup.tmp

Filesize
1.1MB

MD5
394289faec0a43faea574588cb367018

SHA1
b02982a816782c3c16ad5a321dce0a79cab124a2

SHA256
89c8d27247ff86f189ebba01e27c47daa184a04c5f002130f9d336ca80d71202

SHA512
e99977ed9b3ea6607d347fe3e339cff40e70166db6a93443046cb7e0bc2a6f7c598503a55030f7d9ae0e8ede8b706bb4bd682bbdadf215641247b96bae0d09f4

Download Submit
\Users\Admin\AppData\Local\Temp\is-S7L2D.tmp\_isetup\_shfoldr.dll

Filesize
22KB

MD5
92dc6ef532fbb4a5c3201469a5b5eb63

SHA1
3e89ff837147c16b4e41c30d6c796374e0b8e62c

SHA256
9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

SHA512
9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

Download Submit
memory/2392-10-0x0000000000400000-0x0000000000526000-memory.dmp

Filesize
1.1MB

Download
memory/2392-18-0x0000000000400000-0x0000000000526000-memory.dmp

Filesize
1.1MB

Download
memory/2464-0-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download
memory/2464-2-0x0000000000401000-0x0000000000417000-memory.dmp

Filesize
88KB

Download
memory/2464-17-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download