af4e53509f0de4f222895979cf3bcaad49ed4ce09da2b1603fb5b7ad75780dda

Analysis

max time kernel
140s
max time network
121s
platform
windows7_x64
resource
win7-20240419-en
resource tags

arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system
submitted
30-06-2024 01:00

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General

Target

$PLUGINSDIR/htkz.exe
Size

1.3MB
MD5

6ef1130931c71b3991bf8d0a030f20ef
SHA1

00aef18efc7bafb27a766e4b64a32d9dcddd1870
SHA256

7dc7f45f096019e226f2c7c9877b5c576187ecce789208fe344c41483653d67d
SHA512

31e65ee79068517c8e535ec66c4da2ae3f88f1223de89b8ee027e66ba5db07067868f797c919478e59cab53578a4ed3b2860127296598efe593bab8a624b3acf
SSDEEP

24576:v2UCykYC0w/NhDwHqiHUhyGI0ErAYdWDC7fqRMs58YaXag:v2Py80ZMJI0SAYAEfw1aV

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1972	htkz.tmp

Loads dropped DLL 4 IoCs

pid	Process
2308	htkz.exe
1972	htkz.tmp
1972	htkz.tmp
1972	htkz.tmp

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

System Information Discovery
T1082

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1972	htkz.tmp

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2308 wrote to memory of 1972	2308	htkz.exe	28
PID 2308 wrote to memory of 1972	2308	htkz.exe	28
PID 2308 wrote to memory of 1972	2308	htkz.exe	28
PID 2308 wrote to memory of 1972	2308	htkz.exe	28
PID 2308 wrote to memory of 1972	2308	htkz.exe	28
PID 2308 wrote to memory of 1972	2308	htkz.exe	28
PID 2308 wrote to memory of 1972	2308	htkz.exe	28

C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\htkz.exe
"C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\htkz.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2308
- C:\Users\Admin\AppData\Local\Temp\is-I0GE4.tmp\htkz.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-I0GE4.tmp\htkz.tmp" /SL5="$400BE,1094534,53248,C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\htkz.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious behavior: GetForegroundWindowSpam
  PID:1972

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\is-6FUB8.tmp\_isetup\_isdecmp.dll

Filesize
13KB

MD5
a813d18268affd4763dde940246dc7e5

SHA1
c7366e1fd925c17cc6068001bd38eaef5b42852f

SHA256
e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

SHA512
b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

Download Submit
\Users\Admin\AppData\Local\Temp\is-6FUB8.tmp\_isetup\_shfoldr.dll

Filesize
22KB

MD5
92dc6ef532fbb4a5c3201469a5b5eb63

SHA1
3e89ff837147c16b4e41c30d6c796374e0b8e62c

SHA256
9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

SHA512
9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

Download Submit
\Users\Admin\AppData\Local\Temp\is-I0GE4.tmp\htkz.tmp

Filesize
669KB

MD5
52950ac9e2b481453082f096120e355a

SHA1
159c09db1abcee9114b4f792ffba255c78a6e6c3

SHA256
25fbc88c7c967266f041ae4d47c2eae0b96086f9e440cca10729103aee7ef6cd

SHA512
5b61c28bbcaedadb3b6cd3bb8a392d18016c354c4c16e01395930666addc95994333dfc45bea1a1844f6f1585e79c729136d3714ac118b5848becde0bdb182ba

Download Submit
memory/1972-19-0x0000000000400000-0x00000000004B6000-memory.dmp

Filesize
728KB

Download
memory/1972-21-0x0000000000400000-0x00000000004B6000-memory.dmp

Filesize
728KB

Download
memory/2308-3-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/2308-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2308-20-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download