d3b43a50f49f725d4ef645f4baf0bef7d6669d9cbd76a7432be35d47846d975a

Analysis

max time kernel
141s
max time network
18s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
14/07/2024, 07:55

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General

Target

tyjb.exe
Size

1.1MB
MD5

5df56465574aa3a4374700200dc156c8
SHA1

5b6d163a567ba144a551790695d26ff968f4b457
SHA256

ff38e7459e9aa496ea5e6dd7b8822f48a384a6b2fbbc52e0397476d6d8824902
SHA512

ccb6a7ad89823bf8559c1fc75762df7a3fd222224c4b8e7afa5fcce3c51dc51d131424f69f9af8db1265191257dd0a75c4f46595beb0a5ce075d21fb8165a7c9
SSDEEP

24576:ApniKKJXtJR2PTpJ2qUvk4n2HPrC3FiOyNWXg81sa3kY2+mO8G:+i5J3R27t4n2HPrC34IQ413O+mOJ

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1120	is-HBTPD.tmp

Loads dropped DLL 3 IoCs

pid	Process
2532	tyjb.exe
1120	is-HBTPD.tmp
1120	is-HBTPD.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
1120	is-HBTPD.tmp

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2532 wrote to memory of 1120	2532	tyjb.exe	29
PID 2532 wrote to memory of 1120	2532	tyjb.exe	29
PID 2532 wrote to memory of 1120	2532	tyjb.exe	29
PID 2532 wrote to memory of 1120	2532	tyjb.exe	29
PID 2532 wrote to memory of 1120	2532	tyjb.exe	29
PID 2532 wrote to memory of 1120	2532	tyjb.exe	29
PID 2532 wrote to memory of 1120	2532	tyjb.exe	29

C:\Users\Admin\AppData\Local\Temp\tyjb.exe
"C:\Users\Admin\AppData\Local\Temp\tyjb.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2532
- C:\Users\Admin\AppData\Local\Temp\is-PC4TB.tmp\is-HBTPD.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-PC4TB.tmp\is-HBTPD.tmp" /SL4 $401B0 "C:\Users\Admin\AppData\Local\Temp\tyjb.exe" 939035 52224
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious behavior: GetForegroundWindowSpam
  PID:1120

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-2NPFO.tmp\_isetup\_shfoldr.dll

Filesize
22KB

MD5
92dc6ef532fbb4a5c3201469a5b5eb63

SHA1
3e89ff837147c16b4e41c30d6c796374e0b8e62c

SHA256
9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

SHA512
9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

Download Submit
\Users\Admin\AppData\Local\Temp\is-PC4TB.tmp\is-HBTPD.tmp

Filesize
634KB

MD5
d291acbf9866b8846fe0629e690feb1a

SHA1
293314b11340d798d3c74e2416e2a43f267a25d6

SHA256
ab3e1fa210171e5ed2decc615c9328379ee3d29b55ee0e5d7ef6bece43f583eb

SHA512
320e68a67fdcf13dc25640cf68468abd9e0dc51b647f95277eebbd06c7c5ee298b1f68d4a01deb886979e42cbc3eddf16ac4db18884a96b1535598ba11ba36ed

Download Submit
memory/1120-16-0x0000000000400000-0x00000000004CD000-memory.dmp

Filesize
820KB

Download
memory/2532-0-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/2532-2-0x0000000000401000-0x000000000040A000-memory.dmp

Filesize
36KB

Download
memory/2532-15-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download