fa027c15cf301bc64327eff17dc8290e09c8b6ce3cf6f07a604bf9c328334ceb

Analysis

max time kernel
141s
max time network
19s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
06/09/2024, 08:23

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General

Target

$PLUGINSDIR/STWSetup-IEFF.exe
Size

911KB
MD5

88ccc2784d4a560c1ae8e39ee2793e79
SHA1

c7b35961ba8907acb2b2713c7f4f028c6c69e98f
SHA256

ec679df15856afe81d254824e1efe9c31bf263116b6dbc95a7996342a12dc823
SHA512

0bb3c1538439f428fa54572982dc922e5ab418d19ae82d775ba52c3bbb3cfbf8f06de6664ee4edcb0610719f5b662430ef0bcf1801586f7a0438908598b36d61
SSDEEP

24576:TMjh5b3fJRsG2jPounorrZQ1lKUTH7MGbER/QH:msG2jPounorNQ1lKU/MGbEZQH

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2604	STWSetup-IEFF.tmp

Loads dropped DLL 3 IoCs

pid	Process
3060	STWSetup-IEFF.exe
2604	STWSetup-IEFF.tmp
2604	STWSetup-IEFF.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	STWSetup-IEFF.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	STWSetup-IEFF.tmp

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2604	STWSetup-IEFF.tmp

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 3060 wrote to memory of 2604	3060	STWSetup-IEFF.exe	29
PID 3060 wrote to memory of 2604	3060	STWSetup-IEFF.exe	29
PID 3060 wrote to memory of 2604	3060	STWSetup-IEFF.exe	29
PID 3060 wrote to memory of 2604	3060	STWSetup-IEFF.exe	29
PID 3060 wrote to memory of 2604	3060	STWSetup-IEFF.exe	29
PID 3060 wrote to memory of 2604	3060	STWSetup-IEFF.exe	29
PID 3060 wrote to memory of 2604	3060	STWSetup-IEFF.exe	29

C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\STWSetup-IEFF.exe
"C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\STWSetup-IEFF.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3060
- C:\Users\Admin\AppData\Local\Temp\is-KV791.tmp\STWSetup-IEFF.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-KV791.tmp\STWSetup-IEFF.tmp" /SL5="$401AE,549572,140800,C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\STWSetup-IEFF.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: GetForegroundWindowSpam
  PID:2604

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-KFLV1.tmp\_isetup\_shfoldr.dll

Filesize
22KB

MD5
92dc6ef532fbb4a5c3201469a5b5eb63

SHA1
3e89ff837147c16b4e41c30d6c796374e0b8e62c

SHA256
9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

SHA512
9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

Download Submit
\Users\Admin\AppData\Local\Temp\is-KV791.tmp\STWSetup-IEFF.tmp

Filesize
1.1MB

MD5
8fd32d871dfd28c4519cd9c96a120026

SHA1
5bd078aabbc46eb2a04de766dccbc82a6782aef9

SHA256
0c340a0c550cde8d73f7b109416faf9a1243c5bebcc5477123cb97028ba01088

SHA512
86a83f54723ba2d90109edf3f26739e4798b756ec7dd04e50a9cc3eb9075d9f213f1074057b01af55e3fe980a6fef2bea8bffefe0cb6e25b95f7ae42e0fa96e8

Download Submit
memory/2604-14-0x0000000000400000-0x0000000000536000-memory.dmp

Filesize
1.2MB

Download
memory/2604-17-0x0000000000400000-0x0000000000536000-memory.dmp

Filesize
1.2MB

Download
memory/3060-2-0x0000000000401000-0x0000000000417000-memory.dmp

Filesize
88KB

Download
memory/3060-0-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3060-15-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download