modiloader | cf0304da91d1ea5395be9734a3d766e549fa69a0770dfa18a323468eab5b8c4a

Analysis

max time kernel
118s
max time network
119s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
17-11-2024 20:37

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

cf0304da91d1ea5395be9734a3d766e549fa69a0770dfa18a323468eab5b8c4aN.exe
Size

90KB
MD5

d3b9d942c8240afd5ff2802dcb8034c0
SHA1

c4a5ce23e7f986859e99f4d22f818a80b08d1457
SHA256

cf0304da91d1ea5395be9734a3d766e549fa69a0770dfa18a323468eab5b8c4a
SHA512

f04228aeb6004b2c4c47f59fc4dfd1040c57b6b185c3f708061710325229135f94ad9654946190e3c315c2de5222a275ef7b0b58c7209f53c5d0a7c7677e7712
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDK:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3Y

Score

10^/10

modiloader discovery persistence trojan upx

Malware Config

Signatures

ModiLoader, DBatLoader
ModiLoader is a Delphi loader that misuses cloud services to download other malicious families.
trojan modiloader
Modiloader family
modiloader

ModiLoader Second Stage 1 IoCs

resource	yara_rule
behavioral1/memory/2888-259-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
556	csrsll.exe
2848	csrsll.exe
2888	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
3020	cf0304da91d1ea5395be9734a3d766e549fa69a0770dfa18a323468eab5b8c4aN.exe
3020	cf0304da91d1ea5395be9734a3d766e549fa69a0770dfa18a323468eab5b8c4aN.exe
3020	cf0304da91d1ea5395be9734a3d766e549fa69a0770dfa18a323468eab5b8c4aN.exe
3020	cf0304da91d1ea5395be9734a3d766e549fa69a0770dfa18a323468eab5b8c4aN.exe
3020	cf0304da91d1ea5395be9734a3d766e549fa69a0770dfa18a323468eab5b8c4aN.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-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Windows\CurrentVersion\Run\Win Pdf = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\csrsll.exe"	reg.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1684 set thread context of 3020	1684	cf0304da91d1ea5395be9734a3d766e549fa69a0770dfa18a323468eab5b8c4aN.exe	28
PID 556 set thread context of 2848	556	csrsll.exe	33
PID 556 set thread context of 2888	556	csrsll.exe	34

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1684-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1684-26-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1684-89-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/3020-92-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/3020-100-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1684-105-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/3020-104-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/3020-102-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/3020-98-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/3020-94-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/files/0x0009000000012102-130.dat	upx
behavioral1/memory/3020-132-0x0000000003150000-0x00000000031A3000-memory.dmp	upx
behavioral1/memory/3020-152-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/556-221-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2848-240-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2888-248-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/556-253-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/3020-255-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2848-256-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2888-259-0x0000000000400000-0x0000000000414000-memory.dmp	upx

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 7 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	cf0304da91d1ea5395be9734a3d766e549fa69a0770dfa18a323468eab5b8c4aN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cf0304da91d1ea5395be9734a3d766e549fa69a0770dfa18a323468eab5b8c4aN.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe
Token: SeDebugPrivilege	2848	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1684	cf0304da91d1ea5395be9734a3d766e549fa69a0770dfa18a323468eab5b8c4aN.exe
3020	cf0304da91d1ea5395be9734a3d766e549fa69a0770dfa18a323468eab5b8c4aN.exe
556	csrsll.exe
2848	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 1684 wrote to memory of 3020	1684	cf0304da91d1ea5395be9734a3d766e549fa69a0770dfa18a323468eab5b8c4aN.exe	28
PID 1684 wrote to memory of 3020	1684	cf0304da91d1ea5395be9734a3d766e549fa69a0770dfa18a323468eab5b8c4aN.exe	28
PID 1684 wrote to memory of 3020	1684	cf0304da91d1ea5395be9734a3d766e549fa69a0770dfa18a323468eab5b8c4aN.exe	28
PID 1684 wrote to memory of 3020	1684	cf0304da91d1ea5395be9734a3d766e549fa69a0770dfa18a323468eab5b8c4aN.exe	28
PID 1684 wrote to memory of 3020	1684	cf0304da91d1ea5395be9734a3d766e549fa69a0770dfa18a323468eab5b8c4aN.exe	28
PID 1684 wrote to memory of 3020	1684	cf0304da91d1ea5395be9734a3d766e549fa69a0770dfa18a323468eab5b8c4aN.exe	28
PID 1684 wrote to memory of 3020	1684	cf0304da91d1ea5395be9734a3d766e549fa69a0770dfa18a323468eab5b8c4aN.exe	28
PID 1684 wrote to memory of 3020	1684	cf0304da91d1ea5395be9734a3d766e549fa69a0770dfa18a323468eab5b8c4aN.exe	28
PID 3020 wrote to memory of 592	3020	cf0304da91d1ea5395be9734a3d766e549fa69a0770dfa18a323468eab5b8c4aN.exe	29
PID 3020 wrote to memory of 592	3020	cf0304da91d1ea5395be9734a3d766e549fa69a0770dfa18a323468eab5b8c4aN.exe	29
PID 3020 wrote to memory of 592	3020	cf0304da91d1ea5395be9734a3d766e549fa69a0770dfa18a323468eab5b8c4aN.exe	29
PID 3020 wrote to memory of 592	3020	cf0304da91d1ea5395be9734a3d766e549fa69a0770dfa18a323468eab5b8c4aN.exe	29
PID 592 wrote to memory of 1480	592	cmd.exe	31
PID 592 wrote to memory of 1480	592	cmd.exe	31
PID 592 wrote to memory of 1480	592	cmd.exe	31
PID 592 wrote to memory of 1480	592	cmd.exe	31
PID 3020 wrote to memory of 556	3020	cf0304da91d1ea5395be9734a3d766e549fa69a0770dfa18a323468eab5b8c4aN.exe	32
PID 3020 wrote to memory of 556	3020	cf0304da91d1ea5395be9734a3d766e549fa69a0770dfa18a323468eab5b8c4aN.exe	32
PID 3020 wrote to memory of 556	3020	cf0304da91d1ea5395be9734a3d766e549fa69a0770dfa18a323468eab5b8c4aN.exe	32
PID 3020 wrote to memory of 556	3020	cf0304da91d1ea5395be9734a3d766e549fa69a0770dfa18a323468eab5b8c4aN.exe	32
PID 556 wrote to memory of 2848	556	csrsll.exe	33
PID 556 wrote to memory of 2848	556	csrsll.exe	33
PID 556 wrote to memory of 2848	556	csrsll.exe	33
PID 556 wrote to memory of 2848	556	csrsll.exe	33
PID 556 wrote to memory of 2848	556	csrsll.exe	33
PID 556 wrote to memory of 2848	556	csrsll.exe	33
PID 556 wrote to memory of 2848	556	csrsll.exe	33
PID 556 wrote to memory of 2848	556	csrsll.exe	33
PID 556 wrote to memory of 2888	556	csrsll.exe	34
PID 556 wrote to memory of 2888	556	csrsll.exe	34
PID 556 wrote to memory of 2888	556	csrsll.exe	34
PID 556 wrote to memory of 2888	556	csrsll.exe	34
PID 556 wrote to memory of 2888	556	csrsll.exe	34
PID 556 wrote to memory of 2888	556	csrsll.exe	34
PID 556 wrote to memory of 2888	556	csrsll.exe	34
PID 556 wrote to memory of 2888	556	csrsll.exe	34

C:\Users\Admin\AppData\Local\Temp\cf0304da91d1ea5395be9734a3d766e549fa69a0770dfa18a323468eab5b8c4aN.exe
"C:\Users\Admin\AppData\Local\Temp\cf0304da91d1ea5395be9734a3d766e549fa69a0770dfa18a323468eab5b8c4aN.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1684
- C:\Users\Admin\AppData\Local\Temp\cf0304da91d1ea5395be9734a3d766e549fa69a0770dfa18a323468eab5b8c4aN.exe
  "C:\Users\Admin\AppData\Local\Temp\cf0304da91d1ea5395be9734a3d766e549fa69a0770dfa18a323468eab5b8c4aN.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3020
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\BCXTO.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:592
  - - C:\Windows\SysWOW64\reg.exe
      REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "Win Pdf" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe" /f
      4⤵
      Adds Run key to start application
      System Location Discovery: System Language Discovery
      PID:1480
- - C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
    "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:556
  - - C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of SetWindowsHookEx
      PID:2848
  - - C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      PID:2888

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

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\BCXTO.bat

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

Download Submit
\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe

Filesize
90KB

MD5
65342a9531b22c13da68469ce63dfbc0

SHA1
fbc7c6d9347739a217d3980362fcfd77b3b123dc

SHA256
2beefed1d4f15b4aedabf05dcda996aec3c97bd48f1159e3335f8551865d5346

SHA512
0cc97eaf46fb8ca45b87b44d2edc00fd327cb48a090d460af4bbb1d457217c5be202bfe8286b892f4936b900df1ec88c0189e0f4b7ff51561333339a70c4a617

Download Submit
memory/556-253-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/556-155-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/556-165-0x0000000000250000-0x0000000000251000-memory.dmp

Filesize
4KB

Download
memory/556-176-0x0000000000270000-0x0000000000271000-memory.dmp

Filesize
4KB

Download
memory/556-221-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1684-89-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1684-15-0x00000000001E0000-0x00000000001E1000-memory.dmp

Filesize
4KB

Download
memory/1684-29-0x0000000000280000-0x0000000000281000-memory.dmp

Filesize
4KB

Download
memory/1684-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1684-79-0x00000000005D0000-0x00000000005D2000-memory.dmp

Filesize
8KB

Download
memory/1684-19-0x0000000000404000-0x0000000000405000-memory.dmp

Filesize
4KB

Download
memory/1684-71-0x00000000005B0000-0x00000000005B1000-memory.dmp

Filesize
4KB

Download
memory/1684-3-0x00000000001C0000-0x00000000001C1000-memory.dmp

Filesize
4KB

Download
memory/1684-105-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1684-41-0x00000000002A0000-0x00000000002A1000-memory.dmp

Filesize
4KB

Download
memory/1684-61-0x00000000003E0000-0x00000000003E1000-memory.dmp

Filesize
4KB

Download
memory/1684-26-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1684-5-0x00000000001C0000-0x00000000001C1000-memory.dmp

Filesize
4KB

Download
memory/2848-240-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2848-256-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2888-248-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2888-259-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3020-104-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3020-148-0x0000000003150000-0x00000000031A3000-memory.dmp

Filesize
332KB

Download
memory/3020-146-0x0000000003150000-0x00000000031A3000-memory.dmp

Filesize
332KB

Download
memory/3020-145-0x0000000003150000-0x00000000031A3000-memory.dmp

Filesize
332KB

Download
memory/3020-152-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3020-217-0x0000000003150000-0x00000000031A3000-memory.dmp

Filesize
332KB

Download
memory/3020-147-0x0000000003150000-0x00000000031A3000-memory.dmp

Filesize
332KB

Download
memory/3020-132-0x0000000003150000-0x00000000031A3000-memory.dmp

Filesize
332KB

Download
memory/3020-94-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3020-96-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/3020-98-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3020-102-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3020-100-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3020-255-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3020-92-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3020-90-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads