d49b89eca6d2a472562d8c93d97d76faf01c473e4203f29dfd7bc23919ffdfe0

Analysis

max time kernel
119s
max time network
124s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
12/09/2024, 03:28

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General

Target

d0d368ca8ffd04426cf3add8b9cd3b10N.exe
Size

83KB
MD5

d0d368ca8ffd04426cf3add8b9cd3b10
SHA1

d2c3486714b8e813cc4018faa7e5907f784ed32a
SHA256

d49b89eca6d2a472562d8c93d97d76faf01c473e4203f29dfd7bc23919ffdfe0
SHA512

480aa1867466f749f65d71109fbbdeaaa44727a88f233d7bf10aeb62e2c26032a70d55b3830153f859cc4bff08397a9f8f0eddc2f745b199f5425e863de99f64
SSDEEP

1536:6LxJJlguY/NbvWU2VkWlVvtlqDyKJR40AEEokb:cc/R+U23vtlPR0p

Score

8^/10

bootkit discovery persistence spyware stealer upx

Malware Config

Signatures

Blocklisted process makes network request 8 IoCs

flow	pid	Process
14	1896	rundll32.exe
20	1896	rundll32.exe
21	1896	rundll32.exe
22	1896	rundll32.exe
36	1896	rundll32.exe
37	1896	rundll32.exe
40	1896	rundll32.exe
45	1896	rundll32.exe

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral2/files/0x0004000000022723-10.dat	acprotect

Deletes itself 1 IoCs

pid	Process
4792	egdfestb.exe

Executes dropped EXE 1 IoCs

pid	Process
4792	egdfestb.exe

Loads dropped DLL 1 IoCs

pid	Process
1896	rundll32.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x0004000000022723-10.dat	upx
behavioral2/memory/1896-12-0x0000000010000000-0x0000000010024000-memory.dmp	upx
behavioral2/memory/1896-13-0x0000000010000000-0x0000000010024000-memory.dmp	upx
behavioral2/memory/1896-15-0x0000000010000000-0x0000000010024000-memory.dmp	upx
behavioral2/memory/1896-16-0x0000000010000000-0x0000000010024000-memory.dmp	upx
behavioral2/memory/1896-17-0x0000000010000000-0x0000000010024000-memory.dmp	upx

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-1-5-21-1194130065-3471212556-1656947724-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\EvtMgr = "c:\\windows\\SysWOW64\\rundll32.exe \"c:\\xgzlg\\uhcxv.dll\",init"	rundll32.exe

Enumerates connected drives 3 TTPs 23 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)	\??\w:	rundll32.exe
File opened (read-only)	\??\t:	rundll32.exe
File opened (read-only)	\??\j:	rundll32.exe
File opened (read-only)	\??\k:	rundll32.exe
File opened (read-only)	\??\m:	rundll32.exe
File opened (read-only)	\??\v:	rundll32.exe
File opened (read-only)	\??\y:	rundll32.exe
File opened (read-only)	\??\g:	rundll32.exe
File opened (read-only)	\??\r:	rundll32.exe
File opened (read-only)	\??\s:	rundll32.exe
File opened (read-only)	\??\u:	rundll32.exe
File opened (read-only)	\??\x:	rundll32.exe
File opened (read-only)	\??\q:	rundll32.exe
File opened (read-only)	\??\b:	rundll32.exe
File opened (read-only)	\??\e:	rundll32.exe
File opened (read-only)	\??\h:	rundll32.exe
File opened (read-only)	\??\i:	rundll32.exe
File opened (read-only)	\??\l:	rundll32.exe
File opened (read-only)	\??\n:	rundll32.exe
File opened (read-only)	\??\o:	rundll32.exe
File opened (read-only)	\??\a:	rundll32.exe
File opened (read-only)	\??\z:	rundll32.exe
File opened (read-only)	\??\p:	rundll32.exe

Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

Bootkits write to the MBR to gain persistence at a level below the operating system.

bootkit persistence

Bootkit

T1542.003

description	ioc	Process
File opened for modification	\??\PHYSICALDRIVE0	rundll32.exe

System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	egdfestb.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d0d368ca8ffd04426cf3add8b9cd3b10N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.EXE

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
4388	cmd.exe
3304	PING.EXE

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	rundll32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	rundll32.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
3304	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1896	rundll32.exe
1896	rundll32.exe
1896	rundll32.exe
1896	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1896	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1804	d0d368ca8ffd04426cf3add8b9cd3b10N.exe
4792	egdfestb.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1804 wrote to memory of 4388	1804	d0d368ca8ffd04426cf3add8b9cd3b10N.exe	84
PID 1804 wrote to memory of 4388	1804	d0d368ca8ffd04426cf3add8b9cd3b10N.exe	84
PID 1804 wrote to memory of 4388	1804	d0d368ca8ffd04426cf3add8b9cd3b10N.exe	84
PID 4388 wrote to memory of 3304	4388	cmd.exe	87
PID 4388 wrote to memory of 3304	4388	cmd.exe	87
PID 4388 wrote to memory of 3304	4388	cmd.exe	87
PID 4388 wrote to memory of 4792	4388	cmd.exe	89
PID 4388 wrote to memory of 4792	4388	cmd.exe	89
PID 4388 wrote to memory of 4792	4388	cmd.exe	89
PID 4792 wrote to memory of 1896	4792	egdfestb.exe	91
PID 4792 wrote to memory of 1896	4792	egdfestb.exe	91
PID 4792 wrote to memory of 1896	4792	egdfestb.exe	91

C:\Users\Admin\AppData\Local\Temp\d0d368ca8ffd04426cf3add8b9cd3b10N.exe
"C:\Users\Admin\AppData\Local\Temp\d0d368ca8ffd04426cf3add8b9cd3b10N.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1804
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&c:\egdfestb.exe "C:\Users\Admin\AppData\Local\Temp\d0d368ca8ffd04426cf3add8b9cd3b10N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:4388
- - C:\Windows\SysWOW64\PING.EXE
    ping 127.0.0.1 -n 2
    3⤵
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:3304
- - \??\c:\egdfestb.exe
    c:\egdfestb.exe "C:\Users\Admin\AppData\Local\Temp\d0d368ca8ffd04426cf3add8b9cd3b10N.exe"
    3⤵
    - Deletes itself
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:4792
  - - \??\c:\windows\SysWOW64\rundll32.exe
      c:\windows\system32\rundll32.exe "c:\xgzlg\uhcxv.dll",init c:\egdfestb.exe
      4⤵
      Blocklisted process makes network request
      Loads dropped DLL
      Adds Run key to start application
      Enumerates connected drives
      Writes to the Master Boot Record (MBR)
      System Location Discovery: System Language Discovery
      Checks processor information in registry
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:1896

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

Pre-OS Boot

T1542

Bootkit

T1542.003

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Pre-OS Boot

T1542

Bootkit

T1542.003

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

Remote System Discovery

T1018

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

System Network Configuration Discovery

T1016

Internet Connection Discovery

T1016.001

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\egdfestb.exe

Filesize
83KB

MD5
deff23c64ea68abd6104011aad39a93a

SHA1
2edc3469511cd1c27c60d90be726ece8fa94f824

SHA256
7ba38ddf2bf393f1c9ab162ba49a1765bc4ad8a8970786b8d3f044874e9b617b

SHA512
de1b9ef0a08e2e1867c76acc2dcc8d3e92def4a3150b22b29645e58d2aa4187353d83927c3464c60d8dfa9241a7e3cd357d9cc2e7fc30cac421af7f2469809a3

Download Submit
\??\c:\xgzlg\uhcxv.dll

Filesize
46KB

MD5
42fe886bcb6460f7c2a46e21ecac5da6

SHA1
7d9a1c9fe17121cf61444da965f29e974a95ede2

SHA256
b6bc7902da0250f6ca920b35b222f6a0fe62102caf05d2a1722c4d3b225a0a9e

SHA512
3d1a7dc1d9ca8a4376302ba20df584ad59b98e0d3b18b06b22d7f5a455833ce124e412fc1922a3b704dcbafa31987cda3115c9a71dd6299683502cebae33567c

Download Submit
memory/1804-0-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1804-1-0x00000000009E0000-0x00000000009E2000-memory.dmp

Filesize
8KB

Download
memory/1804-3-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1896-12-0x0000000010000000-0x0000000010024000-memory.dmp

Filesize
144KB

Download
memory/1896-13-0x0000000010000000-0x0000000010024000-memory.dmp

Filesize
144KB

Download
memory/1896-15-0x0000000010000000-0x0000000010024000-memory.dmp

Filesize
144KB

Download
memory/1896-16-0x0000000010000000-0x0000000010024000-memory.dmp

Filesize
144KB

Download
memory/1896-17-0x0000000010000000-0x0000000010024000-memory.dmp

Filesize
144KB

Download
memory/4792-7-0x0000000000510000-0x0000000000512000-memory.dmp

Filesize
8KB

Download
memory/4792-9-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download