f98eb39941eb5078d53a5cb1c00c780de967301801adb503d98dd2ceb2968071

Analysis

max time kernel
152s
max time network
125s
platform
windows7_x64
resource
win7-20231020-en
resource tags

arch:x64arch:x86image:win7-20231020-enlocale:en-usos:windows7-x64system
submitted
05/11/2023, 21:05

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General

Target

NEAS.841923b897b7ebe6147d11851fd74520.exe
Size

234KB
MD5

841923b897b7ebe6147d11851fd74520
SHA1

429c081376975817aa7ef97838cf1a71ed0b063e
SHA256

f98eb39941eb5078d53a5cb1c00c780de967301801adb503d98dd2ceb2968071
SHA512

fb2ca9388bd326a3a4602044db19df27ac1eb35defef46848223b50bd3047503db9350825c7ecede880c38282ef8cdaeec5dc7c383a6d4d2a525e2076246c461
SSDEEP

6144:NwU5hNJJRdxRqOP/sF4QErFfnFR4ropS+O+MrCFRo5X4XQIQ4:Nw6RnP/sZ8FQTmt

Score

7^/10

persistence

Malware Config

Signatures

Executes dropped EXE 3 IoCs

pid	Process
2188	bthurint.exe
2820	~6623.tmp
2756	ktmushta.exe

Loads dropped DLL 3 IoCs

pid	Process
2252	NEAS.841923b897b7ebe6147d11851fd74520.exe
2252	NEAS.841923b897b7ebe6147d11851fd74520.exe
2188	bthurint.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2952504676-3105837840-1406404655-1000\Software\Microsoft\Windows\CurrentVersion\Run\ieUnance = "C:\\Users\\Admin\\AppData\\Roaming\\Dispelog\\bthurint.exe"	NEAS.841923b897b7ebe6147d11851fd74520.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\ktmushta.exe	NEAS.841923b897b7ebe6147d11851fd74520.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2188	bthurint.exe
1248	Explorer.EXE
1248	Explorer.EXE
1248	Explorer.EXE
1248	Explorer.EXE
1248	Explorer.EXE
1248	Explorer.EXE
1248	Explorer.EXE
1248	Explorer.EXE
1248	Explorer.EXE
1248	Explorer.EXE
1248	Explorer.EXE
1248	Explorer.EXE
1248	Explorer.EXE
1248	Explorer.EXE
1248	Explorer.EXE
1248	Explorer.EXE
1248	Explorer.EXE
1248	Explorer.EXE
1248	Explorer.EXE
1248	Explorer.EXE
1248	Explorer.EXE
1248	Explorer.EXE
1248	Explorer.EXE
1248	Explorer.EXE
1248	Explorer.EXE
1248	Explorer.EXE
1248	Explorer.EXE
1248	Explorer.EXE
1248	Explorer.EXE
1248	Explorer.EXE
1248	Explorer.EXE
1248	Explorer.EXE
1248	Explorer.EXE
1248	Explorer.EXE
1248	Explorer.EXE
1248	Explorer.EXE
1248	Explorer.EXE
1248	Explorer.EXE
1248	Explorer.EXE
1248	Explorer.EXE
1248	Explorer.EXE
1248	Explorer.EXE
1248	Explorer.EXE
1248	Explorer.EXE
1248	Explorer.EXE
1248	Explorer.EXE
1248	Explorer.EXE
1248	Explorer.EXE
1248	Explorer.EXE
1248	Explorer.EXE
1248	Explorer.EXE
1248	Explorer.EXE
1248	Explorer.EXE
1248	Explorer.EXE
1248	Explorer.EXE
1248	Explorer.EXE
1248	Explorer.EXE
1248	Explorer.EXE
1248	Explorer.EXE
1248	Explorer.EXE
1248	Explorer.EXE
1248	Explorer.EXE
1248	Explorer.EXE

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1248	Explorer.EXE

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2188	bthurint.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2252 wrote to memory of 2188	2252	NEAS.841923b897b7ebe6147d11851fd74520.exe	28
PID 2252 wrote to memory of 2188	2252	NEAS.841923b897b7ebe6147d11851fd74520.exe	28
PID 2252 wrote to memory of 2188	2252	NEAS.841923b897b7ebe6147d11851fd74520.exe	28
PID 2252 wrote to memory of 2188	2252	NEAS.841923b897b7ebe6147d11851fd74520.exe	28
PID 2188 wrote to memory of 2820	2188	bthurint.exe	29
PID 2188 wrote to memory of 2820	2188	bthurint.exe	29
PID 2188 wrote to memory of 2820	2188	bthurint.exe	29
PID 2188 wrote to memory of 2820	2188	bthurint.exe	29
PID 2820 wrote to memory of 1248	2820	~6623.tmp	5

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
PID:1248
- C:\Users\Admin\AppData\Local\Temp\NEAS.841923b897b7ebe6147d11851fd74520.exe
  "C:\Users\Admin\AppData\Local\Temp\NEAS.841923b897b7ebe6147d11851fd74520.exe"
  2⤵
  - Loads dropped DLL
  - Adds Run key to start application
  - Drops file in System32 directory
  - Suspicious use of WriteProcessMemory
  PID:2252
- - C:\Users\Admin\AppData\Roaming\Dispelog\bthurint.exe
    "C:\Users\Admin\AppData\Roaming\Dispelog"
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2188
  - - C:\Users\Admin\AppData\Local\Temp\~6623.tmp
      1248 239624 2188 1
      4⤵
      Executes dropped EXE
      Suspicious use of WriteProcessMemory
      PID:2820

C:\Windows\SysWOW64\ktmushta.exe
C:\Windows\SysWOW64\ktmushta.exe -s
1⤵
- Executes dropped EXE
PID:2756

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\~6623.tmp

Filesize
8KB

MD5
86dc243576cf5c7445451af37631eea9

SHA1
99a81c47c4c02f32c0ab456bfa23c306c7a09bf9

SHA256
25d2a671e1b5b5b95697ac0234ce4d46e0d0894919521b54aabebd9daecf994a

SHA512
c7310524f9b65f811146c1eb6ae944966351ac88a95fbc1ac422d8810730e5e212a7e28090ad758ea23c96ba38073e7fcf42460575e7f09dbc759a45c5d5a4a4

Download Submit
C:\Users\Admin\AppData\Roaming\Dispelog\bthurint.exe

Filesize
234KB

MD5
d23a400fe1a4d834d3313fe49956c867

SHA1
64a199fbc8de686084cf014cc3c252dab3adf990

SHA256
60df0bc3cb42d4a2d5b71cf4dc99f2f09a53a62daadb48c5e98e6466bb5a9d44

SHA512
fb922cb86386ca78c908d0c9beb5fe58dd56671b60c1f3e4f9875736911fb9502ab71b28d6d456e006b9e7279ab34e57b7c851505374c6a117ef0c9252ec2509

Download Submit
C:\Users\Admin\AppData\Roaming\Dispelog\bthurint.exe

Filesize
234KB

MD5
d23a400fe1a4d834d3313fe49956c867

SHA1
64a199fbc8de686084cf014cc3c252dab3adf990

SHA256
60df0bc3cb42d4a2d5b71cf4dc99f2f09a53a62daadb48c5e98e6466bb5a9d44

SHA512
fb922cb86386ca78c908d0c9beb5fe58dd56671b60c1f3e4f9875736911fb9502ab71b28d6d456e006b9e7279ab34e57b7c851505374c6a117ef0c9252ec2509

Download Submit
C:\Users\Admin\AppData\Roaming\Dispelog\bthurint.exe

Filesize
234KB

MD5
d23a400fe1a4d834d3313fe49956c867

SHA1
64a199fbc8de686084cf014cc3c252dab3adf990

SHA256
60df0bc3cb42d4a2d5b71cf4dc99f2f09a53a62daadb48c5e98e6466bb5a9d44

SHA512
fb922cb86386ca78c908d0c9beb5fe58dd56671b60c1f3e4f9875736911fb9502ab71b28d6d456e006b9e7279ab34e57b7c851505374c6a117ef0c9252ec2509

Download Submit
C:\Windows\SysWOW64\ktmushta.exe

Filesize
234KB

MD5
d23a400fe1a4d834d3313fe49956c867

SHA1
64a199fbc8de686084cf014cc3c252dab3adf990

SHA256
60df0bc3cb42d4a2d5b71cf4dc99f2f09a53a62daadb48c5e98e6466bb5a9d44

SHA512
fb922cb86386ca78c908d0c9beb5fe58dd56671b60c1f3e4f9875736911fb9502ab71b28d6d456e006b9e7279ab34e57b7c851505374c6a117ef0c9252ec2509

Download Submit
C:\Windows\SysWOW64\ktmushta.exe

Filesize
234KB

MD5
d23a400fe1a4d834d3313fe49956c867

SHA1
64a199fbc8de686084cf014cc3c252dab3adf990

SHA256
60df0bc3cb42d4a2d5b71cf4dc99f2f09a53a62daadb48c5e98e6466bb5a9d44

SHA512
fb922cb86386ca78c908d0c9beb5fe58dd56671b60c1f3e4f9875736911fb9502ab71b28d6d456e006b9e7279ab34e57b7c851505374c6a117ef0c9252ec2509

Download Submit
\Users\Admin\AppData\Local\Temp\~6623.tmp

Filesize
8KB

MD5
86dc243576cf5c7445451af37631eea9

SHA1
99a81c47c4c02f32c0ab456bfa23c306c7a09bf9

SHA256
25d2a671e1b5b5b95697ac0234ce4d46e0d0894919521b54aabebd9daecf994a

SHA512
c7310524f9b65f811146c1eb6ae944966351ac88a95fbc1ac422d8810730e5e212a7e28090ad758ea23c96ba38073e7fcf42460575e7f09dbc759a45c5d5a4a4

Download Submit
\Users\Admin\AppData\Roaming\Dispelog\bthurint.exe

Filesize
234KB

MD5
d23a400fe1a4d834d3313fe49956c867

SHA1
64a199fbc8de686084cf014cc3c252dab3adf990

SHA256
60df0bc3cb42d4a2d5b71cf4dc99f2f09a53a62daadb48c5e98e6466bb5a9d44

SHA512
fb922cb86386ca78c908d0c9beb5fe58dd56671b60c1f3e4f9875736911fb9502ab71b28d6d456e006b9e7279ab34e57b7c851505374c6a117ef0c9252ec2509

Download Submit
\Users\Admin\AppData\Roaming\Dispelog\bthurint.exe

Filesize
234KB

MD5
d23a400fe1a4d834d3313fe49956c867

SHA1
64a199fbc8de686084cf014cc3c252dab3adf990

SHA256
60df0bc3cb42d4a2d5b71cf4dc99f2f09a53a62daadb48c5e98e6466bb5a9d44

SHA512
fb922cb86386ca78c908d0c9beb5fe58dd56671b60c1f3e4f9875736911fb9502ab71b28d6d456e006b9e7279ab34e57b7c851505374c6a117ef0c9252ec2509

Download Submit
memory/1248-28-0x0000000002A70000-0x0000000002A76000-memory.dmp

Filesize
24KB

Download
memory/1248-30-0x0000000002A80000-0x0000000002A8D000-memory.dmp

Filesize
52KB

Download
memory/1248-23-0x0000000002A10000-0x0000000002A5A000-memory.dmp

Filesize
296KB

Download
memory/1248-24-0x0000000002A10000-0x0000000002A5A000-memory.dmp

Filesize
296KB

Download
memory/1248-22-0x0000000002A10000-0x0000000002A5A000-memory.dmp

Filesize
296KB

Download
memory/1248-21-0x0000000002A10000-0x0000000002A5A000-memory.dmp

Filesize
296KB

Download
memory/2188-15-0x0000000000220000-0x0000000000263000-memory.dmp

Filesize
268KB

Download
memory/2188-17-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download
memory/2188-16-0x0000000000290000-0x0000000000295000-memory.dmp

Filesize
20KB

Download
memory/2252-14-0x0000000000360000-0x000000000039F000-memory.dmp

Filesize
252KB

Download
memory/2252-0-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download
memory/2252-10-0x0000000000360000-0x000000000039F000-memory.dmp

Filesize
252KB

Download
memory/2252-34-0x00000000002B0000-0x00000000002F3000-memory.dmp

Filesize
268KB

Download
memory/2252-36-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download
memory/2252-1-0x00000000002B0000-0x00000000002F3000-memory.dmp

Filesize
268KB

Download