cb608850f1316afe1c7ff956f4e223a33a9ebf70769a8f84d7bfa9d12078f26c

Analysis

max time kernel
129s
max time network
148s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
25/12/2023, 19:41

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

38c50dc64b1844dce80b81a595037461.exe
Size

358KB
MD5

38c50dc64b1844dce80b81a595037461
SHA1

ebc97b517beb94afa65f56cda4c9808f80a3ae78
SHA256

cb608850f1316afe1c7ff956f4e223a33a9ebf70769a8f84d7bfa9d12078f26c
SHA512

4d863836390e07690d0fcd81ff8967597fb9a4c1bb08a141b858717ca9a236245f71b589325e6df9ed22b1d322ff254ed7578248567bbcf5ef856c3a013dd85a
SSDEEP

3072:WyHKgphXKyKi/29Bywix+DNWgPYB1tSG8EK01p3c5kKNp:WyHNKyj/29Y58NW71tShE

Score

7^/10

persistence upx

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2564	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
2724	geurge.exe

Loads dropped DLL 2 IoCs

pid	Process
2028	38c50dc64b1844dce80b81a595037461.exe
2028	38c50dc64b1844dce80b81a595037461.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2028-0-0x0000000000400000-0x000000000045B000-memory.dmp	upx
behavioral1/memory/2724-14-0x0000000000400000-0x000000000045B000-memory.dmp	upx
behavioral1/files/0x0032000000015e24-12.dat	upx
behavioral1/memory/2028-27-0x0000000000400000-0x000000000045B000-memory.dmp	upx
behavioral1/memory/2724-29-0x0000000000400000-0x000000000045B000-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\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\ewrgetuj = "C:\\Users\\Admin\\AppData\\Local\\Temp\\geurge.exe"	38c50dc64b1844dce80b81a595037461.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)	\??\h:	geurge.exe
File opened (read-only)	\??\j:	geurge.exe
File opened (read-only)	\??\k:	geurge.exe
File opened (read-only)	\??\l:	geurge.exe
File opened (read-only)	\??\m:	geurge.exe
File opened (read-only)	\??\s:	geurge.exe
File opened (read-only)	\??\v:	geurge.exe
File opened (read-only)	\??\b:	geurge.exe
File opened (read-only)	\??\g:	geurge.exe
File opened (read-only)	\??\r:	geurge.exe
File opened (read-only)	\??\u:	geurge.exe
File opened (read-only)	\??\y:	geurge.exe
File opened (read-only)	\??\e:	geurge.exe
File opened (read-only)	\??\i:	geurge.exe
File opened (read-only)	\??\n:	geurge.exe
File opened (read-only)	\??\o:	geurge.exe
File opened (read-only)	\??\t:	geurge.exe
File opened (read-only)	\??\x:	geurge.exe
File opened (read-only)	\??\a:	geurge.exe
File opened (read-only)	\??\p:	geurge.exe
File opened (read-only)	\??\q:	geurge.exe
File opened (read-only)	\??\w:	geurge.exe
File opened (read-only)	\??\z:	geurge.exe

Launches sc.exe 2 IoCs

Sc.exe is a Windows utlilty to control services on the system.

pid	Process
2780	sc.exe
2652	sc.exe

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

System Information Discovery
T1082

Modifies Internet Explorer settings 1 TTPs 2 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-452311807-3713411997-1028535425-1000\Software\Microsoft\Internet Explorer\Main	38c50dc64b1844dce80b81a595037461.exe
Key created	\REGISTRY\USER\S-1-5-21-452311807-3713411997-1028535425-1000\Software\Microsoft\Internet Explorer\Main	geurge.exe

Runs net.exe

Suspicious use of SetWindowsHookEx 8 IoCs

pid	Process
2028	38c50dc64b1844dce80b81a595037461.exe
2028	38c50dc64b1844dce80b81a595037461.exe
2028	38c50dc64b1844dce80b81a595037461.exe
2028	38c50dc64b1844dce80b81a595037461.exe
2724	geurge.exe
2724	geurge.exe
2724	geurge.exe
2724	geurge.exe

Suspicious use of WriteProcessMemory 32 IoCs

description	pid	Process	procid_target
PID 2028 wrote to memory of 2724	2028	38c50dc64b1844dce80b81a595037461.exe	30
PID 2028 wrote to memory of 2724	2028	38c50dc64b1844dce80b81a595037461.exe	30
PID 2028 wrote to memory of 2724	2028	38c50dc64b1844dce80b81a595037461.exe	30
PID 2028 wrote to memory of 2724	2028	38c50dc64b1844dce80b81a595037461.exe	30
PID 2028 wrote to memory of 2676	2028	38c50dc64b1844dce80b81a595037461.exe	29
PID 2028 wrote to memory of 2676	2028	38c50dc64b1844dce80b81a595037461.exe	29
PID 2028 wrote to memory of 2676	2028	38c50dc64b1844dce80b81a595037461.exe	29
PID 2028 wrote to memory of 2676	2028	38c50dc64b1844dce80b81a595037461.exe	29
PID 2028 wrote to memory of 2652	2028	38c50dc64b1844dce80b81a595037461.exe	40
PID 2028 wrote to memory of 2652	2028	38c50dc64b1844dce80b81a595037461.exe	40
PID 2028 wrote to memory of 2652	2028	38c50dc64b1844dce80b81a595037461.exe	40
PID 2028 wrote to memory of 2652	2028	38c50dc64b1844dce80b81a595037461.exe	40
PID 2028 wrote to memory of 2628	2028	38c50dc64b1844dce80b81a595037461.exe	39
PID 2028 wrote to memory of 2628	2028	38c50dc64b1844dce80b81a595037461.exe	39
PID 2028 wrote to memory of 2628	2028	38c50dc64b1844dce80b81a595037461.exe	39
PID 2028 wrote to memory of 2628	2028	38c50dc64b1844dce80b81a595037461.exe	39
PID 2028 wrote to memory of 2780	2028	38c50dc64b1844dce80b81a595037461.exe	38
PID 2028 wrote to memory of 2780	2028	38c50dc64b1844dce80b81a595037461.exe	38
PID 2028 wrote to memory of 2780	2028	38c50dc64b1844dce80b81a595037461.exe	38
PID 2028 wrote to memory of 2780	2028	38c50dc64b1844dce80b81a595037461.exe	38
PID 2028 wrote to memory of 2564	2028	38c50dc64b1844dce80b81a595037461.exe	36
PID 2028 wrote to memory of 2564	2028	38c50dc64b1844dce80b81a595037461.exe	36
PID 2028 wrote to memory of 2564	2028	38c50dc64b1844dce80b81a595037461.exe	36
PID 2028 wrote to memory of 2564	2028	38c50dc64b1844dce80b81a595037461.exe	36
PID 2676 wrote to memory of 2020	2676	net.exe	34
PID 2676 wrote to memory of 2020	2676	net.exe	34
PID 2676 wrote to memory of 2020	2676	net.exe	34
PID 2676 wrote to memory of 2020	2676	net.exe	34
PID 2628 wrote to memory of 2496	2628	net.exe	33
PID 2628 wrote to memory of 2496	2628	net.exe	33
PID 2628 wrote to memory of 2496	2628	net.exe	33
PID 2628 wrote to memory of 2496	2628	net.exe	33

C:\Users\Admin\AppData\Local\Temp\38c50dc64b1844dce80b81a595037461.exe
"C:\Users\Admin\AppData\Local\Temp\38c50dc64b1844dce80b81a595037461.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2028
- C:\Windows\SysWOW64\net.exe
  net.exe stop "Security Center"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2676
- - C:\Windows\SysWOW64\net1.exe
    C:\Windows\system32\net1 stop "Security Center"
    3⤵
    PID:2020
- C:\Users\Admin\AppData\Local\Temp\geurge.exe
  C:\Users\Admin\AppData\Local\Temp\geurge.exe
  2⤵
  - Executes dropped EXE
  - Enumerates connected drives
  - Modifies Internet Explorer settings
  - Suspicious use of SetWindowsHookEx
  PID:2724
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\tujserrew.bat""
  2⤵
  - Deletes itself
  PID:2564
- C:\Windows\SysWOW64\sc.exe
  sc config SharedAccess start= DISABLED
  2⤵
  - Launches sc.exe
  PID:2780
- C:\Windows\SysWOW64\net.exe
  net.exe stop "Windows Firewall/Internet Connection Sharing (ICS)
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2628
- C:\Windows\SysWOW64\sc.exe
  sc config wscsvc start= DISABLED
  2⤵
  - Launches sc.exe
  PID:2652

C:\Windows\SysWOW64\net1.exe
C:\Windows\system32\net1 stop "Windows Firewall/Internet Connection Sharing (ICS)
1⤵
PID:2496

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\geurge.exe

Filesize
358KB

MD5
38c50dc64b1844dce80b81a595037461

SHA1
ebc97b517beb94afa65f56cda4c9808f80a3ae78

SHA256
cb608850f1316afe1c7ff956f4e223a33a9ebf70769a8f84d7bfa9d12078f26c

SHA512
4d863836390e07690d0fcd81ff8967597fb9a4c1bb08a141b858717ca9a236245f71b589325e6df9ed22b1d322ff254ed7578248567bbcf5ef856c3a013dd85a

Download Submit
C:\tujserrew.bat

Filesize
190B

MD5
75e9d6e6294f04e3a4ec71ae8251e15e

SHA1
2a04ff753217209af3570ca0751f45f793dd7887

SHA256
a7b2d452ee2b1a3050d03003f8b664fe88dd4cdd5dcc1fd18b1bb7fecbfcbc92

SHA512
f2cb72ed423293c9336abc88b339707301afbc1b21eec6be1a8fad92b1c113e0afaa75f110f704367d6ee1309637d2067611f29d48c8c340632a17a4380d0fbf

Download Submit
memory/2028-0-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/2028-4-0x00000000037E0000-0x0000000004842000-memory.dmp

Filesize
16.4MB

Download
memory/2028-13-0x0000000005D20000-0x0000000005D7B000-memory.dmp

Filesize
364KB

Download
memory/2028-27-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/2724-14-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/2724-18-0x0000000003660000-0x00000000046C2000-memory.dmp

Filesize
16.4MB

Download
memory/2724-29-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads