38fa4588c8e8d04f5c069a816f628d5f146a950e70a0b58273e2886fa48b40f8

Analysis

max time kernel
118s
max time network
119s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
25-01-2024 17:27

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General

Target

7517ba9f85f8e9ac85e603e51d73e9b1.dll
Size

60KB
MD5

7517ba9f85f8e9ac85e603e51d73e9b1
SHA1

2709770df7961e1d7aebd6205ac87a23f137a6e2
SHA256

38fa4588c8e8d04f5c069a816f628d5f146a950e70a0b58273e2886fa48b40f8
SHA512

80281235f0f3caa82daf2b8fa9d17e8265952ebc104427d168754d23181737c617c82287e38d111a09eb3678c9e7c9fed0be0aa742b62ec1e630633a3c12120d
SSDEEP

768:NBZX+Nzp4mjNx4Ds4l6iE18++uWdB9GBc81f+Iw5BLJUXNPgH9nmscY:NPdc1inuWdB9r8YXPJY2BmscY

Score

8^/10

persistence

Malware Config

Signatures

Modifies AppInit DLL entries 2 TTPs
persistence

Registry Run Keys / Startup Folder
T1547.001

Modify Registry
T1112
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Modifies registry class 1 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\regfile\shell\open\command\ = "regedit.exe /s \"%1\""	rundll32.exe

Runs .reg file with regedit 1 IoCs

pid	Process
2756	regedit.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2540	rundll32.exe
2540	rundll32.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2028 wrote to memory of 2540	2028	rundll32.exe	28
PID 2028 wrote to memory of 2540	2028	rundll32.exe	28
PID 2028 wrote to memory of 2540	2028	rundll32.exe	28
PID 2028 wrote to memory of 2540	2028	rundll32.exe	28
PID 2028 wrote to memory of 2540	2028	rundll32.exe	28
PID 2028 wrote to memory of 2540	2028	rundll32.exe	28
PID 2028 wrote to memory of 2540	2028	rundll32.exe	28
PID 2540 wrote to memory of 3000	2540	rundll32.exe	29
PID 2540 wrote to memory of 3000	2540	rundll32.exe	29
PID 2540 wrote to memory of 3000	2540	rundll32.exe	29
PID 2540 wrote to memory of 3000	2540	rundll32.exe	29
PID 3000 wrote to memory of 2756	3000	cmd.exe	31
PID 3000 wrote to memory of 2756	3000	cmd.exe	31
PID 3000 wrote to memory of 2756	3000	cmd.exe	31
PID 3000 wrote to memory of 2756	3000	cmd.exe	31

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\7517ba9f85f8e9ac85e603e51d73e9b1.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2028
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\7517ba9f85f8e9ac85e603e51d73e9b1.dll,#1
  2⤵
  - Modifies registry class
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2540
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c C:\Users\Admin\AppData\Local\Temp\a.reg
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:3000
  - - C:\Windows\SysWOW64\regedit.exe
      "regedit.exe" /s "C:\Users\Admin\AppData\Local\Temp\a.reg"
      4⤵
      Runs .reg file with regedit
      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

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\a.reg

Filesize
152B

MD5
b100f5324ef74ded0b998e64d07a2e19

SHA1
40b0d7f51bf2dd8451f1b723d21355c471a5fa46

SHA256
3db613d24a75ae220891698c055e1c580a42e58564f568a0510db87581cc2042

SHA512
c12391bb37c334074f7d7e1257b6364fd5cbce848e0a8fe15b8326f54fd9568fe3baec58618c4334027a774a06a08ec249cb71db925c1f85feee6a3d3a816c04

Download Submit
memory/2540-0-0x0000000010000000-0x000000001000F000-memory.dmp

Filesize
60KB

Download
memory/2540-1-0x0000000010000000-0x000000001000F000-memory.dmp

Filesize
60KB

Download
memory/2540-2-0x0000000010000000-0x000000001000F000-memory.dmp

Filesize
60KB

Download