e924338d1956d85194d3d16c7c535521b98fa7c242fb2d734b663a2db9a7acf1

Analysis

max time kernel
118s
max time network
121s
platform
windows7_x64
resource
win7-20231025-en
resource tags

arch:x64arch:x86image:win7-20231025-enlocale:en-usos:windows7-x64system
submitted
16/11/2023, 08:26

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General

Target

NEAS.921d7e06f3183fe3044cb03a5df38bc0.dll
Size

110KB
MD5

921d7e06f3183fe3044cb03a5df38bc0
SHA1

e402ca4eb87bb62e6f0406f7616138d4c4ecf20d
SHA256

e924338d1956d85194d3d16c7c535521b98fa7c242fb2d734b663a2db9a7acf1
SHA512

e0dfca256c5bed8e4ca03370a2a5dff851b8e65839c08d3eddfd3a47b83aa7f47e4738d280bfaf6b51e46cfdb101e293698756cda490490445dbb6f465ef69e9
SSDEEP

1536:Ejp0RU9C2x8Jhy7DPxYTN2s+zheW6BVrqzCJ3bdDY+W14N4NmzWlIA7hKRQX6UCI:EqhJYXx22lQBV+UdE+rECWp7hKC6U/oe

Score

8^/10

persistence upx

Malware Config

Signatures

Blocklisted process makes network request 1 IoCs

flow	pid	Process
6	1624	rundll32.exe

Modifies AppInit DLL entries 2 TTPs
persistence

Registry Run Keys / Startup Folder
T1547.001

Modify Registry
T1112

ACProtect 1.3x - 1.4x DLL software 2 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral1/files/0x0009000000012024-1.dat	acprotect
behavioral1/files/0x0009000000012024-7.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
1624	rundll32.exe

UPX packed file 4 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/files/0x0009000000012024-1.dat	upx
behavioral1/memory/1624-3-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/files/0x0009000000012024-7.dat	upx
behavioral1/memory/1624-11-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Enumerates connected drives 3 TTPs 1 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\e:	rundll32.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	rundll32.exe
File created	\??\c:\program files\common files\system\symsrv.dll.000	rundll32.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1624	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1624	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1980 wrote to memory of 1624	1980	rundll32.exe	28
PID 1980 wrote to memory of 1624	1980	rundll32.exe	28
PID 1980 wrote to memory of 1624	1980	rundll32.exe	28
PID 1980 wrote to memory of 1624	1980	rundll32.exe	28
PID 1980 wrote to memory of 1624	1980	rundll32.exe	28
PID 1980 wrote to memory of 1624	1980	rundll32.exe	28
PID 1980 wrote to memory of 1624	1980	rundll32.exe	28

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\NEAS.921d7e06f3183fe3044cb03a5df38bc0.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1980
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\NEAS.921d7e06f3183fe3044cb03a5df38bc0.dll,#1
  2⤵
  - Blocklisted process makes network request
  - Loads dropped DLL
  - Enumerates connected drives
  - Drops file in Program Files directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1624

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

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Program Files\Common Files\System\symsrv.dll

Filesize
67KB

MD5
7574cf2c64f35161ab1292e2f532aabf

SHA1
14ba3fa927a06224dfe587014299e834def4644f

SHA256
de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

SHA512
4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

Download Submit
\Program Files\Common Files\System\symsrv.dll

Filesize
67KB

MD5
7574cf2c64f35161ab1292e2f532aabf

SHA1
14ba3fa927a06224dfe587014299e834def4644f

SHA256
de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

SHA512
4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

Download Submit
memory/1624-3-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/1624-5-0x0000000075050000-0x000000007505A000-memory.dmp

Filesize
40KB

Download
memory/1624-11-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/1624-12-0x0000000075050000-0x0000000075053000-memory.dmp

Filesize
12KB

Download