modiloader | cf16460e0683bf23d92698a4e92e81bad0278f78b35bd0da051e31772133858b

Analysis

max time kernel
149s
max time network
120s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
30-12-2024 03:26

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General

Target

cf16460e0683bf23d92698a4e92e81bad0278f78b35bd0da051e31772133858b.exe
Size

90KB
MD5

3add8bcfeacfff87433aa4dcbb80cc0b
SHA1

8c93179c873db69bf35a3eda8e5e4531af278848
SHA256

cf16460e0683bf23d92698a4e92e81bad0278f78b35bd0da051e31772133858b
SHA512

ea5d7c5c762ae800f7e894419c56eb6d39be8f4e89622887fb953ff52d9139aea5f04b84278bbc19a7ab52af7068c3abaf1e32694b906096de639c0a27e9ed0c
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDi:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3s

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/972-263-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
2168	csrsll.exe
1108	csrsll.exe
972	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
528	cf16460e0683bf23d92698a4e92e81bad0278f78b35bd0da051e31772133858b.exe
528	cf16460e0683bf23d92698a4e92e81bad0278f78b35bd0da051e31772133858b.exe
528	cf16460e0683bf23d92698a4e92e81bad0278f78b35bd0da051e31772133858b.exe
528	cf16460e0683bf23d92698a4e92e81bad0278f78b35bd0da051e31772133858b.exe
528	cf16460e0683bf23d92698a4e92e81bad0278f78b35bd0da051e31772133858b.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-1-5-21-2039016743-699959520-214465309-1000\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 1600 set thread context of 528	1600	cf16460e0683bf23d92698a4e92e81bad0278f78b35bd0da051e31772133858b.exe	30
PID 2168 set thread context of 1108	2168	csrsll.exe	35
PID 2168 set thread context of 972	2168	csrsll.exe	36

UPX packed file 21 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1600-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1600-26-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1600-87-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/528-98-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/528-104-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/528-103-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/528-102-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1600-100-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/528-94-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/528-92-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/528-108-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1600-107-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/files/0x000b000000012263-131.dat	upx
behavioral1/memory/528-145-0x0000000003350000-0x00000000033A3000-memory.dmp	upx
behavioral1/memory/528-153-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/972-256-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/528-255-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2168-251-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2168-244-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1108-260-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/972-263-0x0000000000400000-0x0000000000414000-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	cf16460e0683bf23d92698a4e92e81bad0278f78b35bd0da051e31772133858b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cf16460e0683bf23d92698a4e92e81bad0278f78b35bd0da051e31772133858b.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

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	1108	csrsll.exe
Token: SeDebugPrivilege	1108	csrsll.exe
Token: SeDebugPrivilege	1108	csrsll.exe
Token: SeDebugPrivilege	1108	csrsll.exe
Token: SeDebugPrivilege	1108	csrsll.exe
Token: SeDebugPrivilege	1108	csrsll.exe
Token: SeDebugPrivilege	1108	csrsll.exe
Token: SeDebugPrivilege	1108	csrsll.exe
Token: SeDebugPrivilege	1108	csrsll.exe
Token: SeDebugPrivilege	1108	csrsll.exe
Token: SeDebugPrivilege	1108	csrsll.exe
Token: SeDebugPrivilege	1108	csrsll.exe
Token: SeDebugPrivilege	1108	csrsll.exe
Token: SeDebugPrivilege	1108	csrsll.exe
Token: SeDebugPrivilege	1108	csrsll.exe
Token: SeDebugPrivilege	1108	csrsll.exe
Token: SeDebugPrivilege	1108	csrsll.exe
Token: SeDebugPrivilege	1108	csrsll.exe
Token: SeDebugPrivilege	1108	csrsll.exe
Token: SeDebugPrivilege	1108	csrsll.exe
Token: SeDebugPrivilege	1108	csrsll.exe
Token: SeDebugPrivilege	1108	csrsll.exe
Token: SeDebugPrivilege	1108	csrsll.exe
Token: SeDebugPrivilege	1108	csrsll.exe
Token: SeDebugPrivilege	1108	csrsll.exe
Token: SeDebugPrivilege	1108	csrsll.exe
Token: SeDebugPrivilege	1108	csrsll.exe
Token: SeDebugPrivilege	1108	csrsll.exe
Token: SeDebugPrivilege	1108	csrsll.exe
Token: SeDebugPrivilege	1108	csrsll.exe
Token: SeDebugPrivilege	1108	csrsll.exe
Token: SeDebugPrivilege	1108	csrsll.exe
Token: SeDebugPrivilege	1108	csrsll.exe
Token: SeDebugPrivilege	1108	csrsll.exe
Token: SeDebugPrivilege	1108	csrsll.exe
Token: SeDebugPrivilege	1108	csrsll.exe
Token: SeDebugPrivilege	1108	csrsll.exe
Token: SeDebugPrivilege	1108	csrsll.exe
Token: SeDebugPrivilege	1108	csrsll.exe
Token: SeDebugPrivilege	1108	csrsll.exe
Token: SeDebugPrivilege	1108	csrsll.exe
Token: SeDebugPrivilege	1108	csrsll.exe
Token: SeDebugPrivilege	1108	csrsll.exe
Token: SeDebugPrivilege	1108	csrsll.exe
Token: SeDebugPrivilege	1108	csrsll.exe
Token: SeDebugPrivilege	1108	csrsll.exe
Token: SeDebugPrivilege	1108	csrsll.exe
Token: SeDebugPrivilege	1108	csrsll.exe
Token: SeDebugPrivilege	1108	csrsll.exe
Token: SeDebugPrivilege	1108	csrsll.exe
Token: SeDebugPrivilege	1108	csrsll.exe
Token: SeDebugPrivilege	1108	csrsll.exe
Token: SeDebugPrivilege	1108	csrsll.exe
Token: SeDebugPrivilege	1108	csrsll.exe
Token: SeDebugPrivilege	1108	csrsll.exe
Token: SeDebugPrivilege	1108	csrsll.exe
Token: SeDebugPrivilege	1108	csrsll.exe
Token: SeDebugPrivilege	1108	csrsll.exe
Token: SeDebugPrivilege	1108	csrsll.exe
Token: SeDebugPrivilege	1108	csrsll.exe
Token: SeDebugPrivilege	1108	csrsll.exe
Token: SeDebugPrivilege	1108	csrsll.exe
Token: SeDebugPrivilege	1108	csrsll.exe
Token: SeDebugPrivilege	1108	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1600	cf16460e0683bf23d92698a4e92e81bad0278f78b35bd0da051e31772133858b.exe
528	cf16460e0683bf23d92698a4e92e81bad0278f78b35bd0da051e31772133858b.exe
2168	csrsll.exe
1108	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 1600 wrote to memory of 528	1600	cf16460e0683bf23d92698a4e92e81bad0278f78b35bd0da051e31772133858b.exe	30
PID 1600 wrote to memory of 528	1600	cf16460e0683bf23d92698a4e92e81bad0278f78b35bd0da051e31772133858b.exe	30
PID 1600 wrote to memory of 528	1600	cf16460e0683bf23d92698a4e92e81bad0278f78b35bd0da051e31772133858b.exe	30
PID 1600 wrote to memory of 528	1600	cf16460e0683bf23d92698a4e92e81bad0278f78b35bd0da051e31772133858b.exe	30
PID 1600 wrote to memory of 528	1600	cf16460e0683bf23d92698a4e92e81bad0278f78b35bd0da051e31772133858b.exe	30
PID 1600 wrote to memory of 528	1600	cf16460e0683bf23d92698a4e92e81bad0278f78b35bd0da051e31772133858b.exe	30
PID 1600 wrote to memory of 528	1600	cf16460e0683bf23d92698a4e92e81bad0278f78b35bd0da051e31772133858b.exe	30
PID 1600 wrote to memory of 528	1600	cf16460e0683bf23d92698a4e92e81bad0278f78b35bd0da051e31772133858b.exe	30
PID 528 wrote to memory of 2024	528	cf16460e0683bf23d92698a4e92e81bad0278f78b35bd0da051e31772133858b.exe	31
PID 528 wrote to memory of 2024	528	cf16460e0683bf23d92698a4e92e81bad0278f78b35bd0da051e31772133858b.exe	31
PID 528 wrote to memory of 2024	528	cf16460e0683bf23d92698a4e92e81bad0278f78b35bd0da051e31772133858b.exe	31
PID 528 wrote to memory of 2024	528	cf16460e0683bf23d92698a4e92e81bad0278f78b35bd0da051e31772133858b.exe	31
PID 2024 wrote to memory of 2964	2024	cmd.exe	33
PID 2024 wrote to memory of 2964	2024	cmd.exe	33
PID 2024 wrote to memory of 2964	2024	cmd.exe	33
PID 2024 wrote to memory of 2964	2024	cmd.exe	33
PID 528 wrote to memory of 2168	528	cf16460e0683bf23d92698a4e92e81bad0278f78b35bd0da051e31772133858b.exe	34
PID 528 wrote to memory of 2168	528	cf16460e0683bf23d92698a4e92e81bad0278f78b35bd0da051e31772133858b.exe	34
PID 528 wrote to memory of 2168	528	cf16460e0683bf23d92698a4e92e81bad0278f78b35bd0da051e31772133858b.exe	34
PID 528 wrote to memory of 2168	528	cf16460e0683bf23d92698a4e92e81bad0278f78b35bd0da051e31772133858b.exe	34
PID 2168 wrote to memory of 1108	2168	csrsll.exe	35
PID 2168 wrote to memory of 1108	2168	csrsll.exe	35
PID 2168 wrote to memory of 1108	2168	csrsll.exe	35
PID 2168 wrote to memory of 1108	2168	csrsll.exe	35
PID 2168 wrote to memory of 1108	2168	csrsll.exe	35
PID 2168 wrote to memory of 1108	2168	csrsll.exe	35
PID 2168 wrote to memory of 1108	2168	csrsll.exe	35
PID 2168 wrote to memory of 1108	2168	csrsll.exe	35
PID 2168 wrote to memory of 972	2168	csrsll.exe	36
PID 2168 wrote to memory of 972	2168	csrsll.exe	36
PID 2168 wrote to memory of 972	2168	csrsll.exe	36
PID 2168 wrote to memory of 972	2168	csrsll.exe	36
PID 2168 wrote to memory of 972	2168	csrsll.exe	36
PID 2168 wrote to memory of 972	2168	csrsll.exe	36
PID 2168 wrote to memory of 972	2168	csrsll.exe	36
PID 2168 wrote to memory of 972	2168	csrsll.exe	36

C:\Users\Admin\AppData\Local\Temp\cf16460e0683bf23d92698a4e92e81bad0278f78b35bd0da051e31772133858b.exe
"C:\Users\Admin\AppData\Local\Temp\cf16460e0683bf23d92698a4e92e81bad0278f78b35bd0da051e31772133858b.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1600
- C:\Users\Admin\AppData\Local\Temp\cf16460e0683bf23d92698a4e92e81bad0278f78b35bd0da051e31772133858b.exe
  "C:\Users\Admin\AppData\Local\Temp\cf16460e0683bf23d92698a4e92e81bad0278f78b35bd0da051e31772133858b.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:528
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\PCEYU.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2024
  - - 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:2964
- - 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:2168
  - - 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:1108
  - - 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:972

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

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Downloads

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

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
3a6058ca9c4a56a2757ea34f5b6c387c

SHA1
8619ae0d6b5e46a3224934a7664e645e89e9a07d

SHA256
1041517a51a4468eed817afa5cf506ee8b1c5e1819b3015291040f2e252fce76

SHA512
946ad7773a3bf4e61950b6a13d1bd0eaa040daf3f3f46b394ac7c0a0cc953fc8fdc25baa8ad1c9b33ff8adb9d0d46118dd1c005394be6dd4e623343601424692

Download Submit
memory/528-96-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/528-145-0x0000000003350000-0x00000000033A3000-memory.dmp

Filesize
332KB

Download
memory/528-148-0x0000000003350000-0x00000000033A3000-memory.dmp

Filesize
332KB

Download
memory/528-241-0x0000000003350000-0x00000000033A3000-memory.dmp

Filesize
332KB

Download
memory/528-255-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/528-98-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/528-104-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/528-103-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/528-102-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/528-92-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/528-217-0x0000000003350000-0x00000000033A3000-memory.dmp

Filesize
332KB

Download
memory/528-94-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/528-149-0x0000000003350000-0x00000000033A3000-memory.dmp

Filesize
332KB

Download
memory/528-90-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/528-245-0x0000000003350000-0x00000000033A3000-memory.dmp

Filesize
332KB

Download
memory/528-153-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/528-221-0x0000000003350000-0x00000000033A3000-memory.dmp

Filesize
332KB

Download
memory/528-146-0x0000000003350000-0x00000000033A3000-memory.dmp

Filesize
332KB

Download
memory/528-147-0x0000000003350000-0x00000000033A3000-memory.dmp

Filesize
332KB

Download
memory/528-108-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/972-256-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/972-263-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1108-260-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1600-100-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1600-87-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1600-29-0x00000000002C0000-0x00000000002C1000-memory.dmp

Filesize
4KB

Download
memory/1600-41-0x00000000002E0000-0x00000000002E1000-memory.dmp

Filesize
4KB

Download
memory/1600-61-0x0000000001D00000-0x0000000001D01000-memory.dmp

Filesize
4KB

Download
memory/1600-71-0x0000000001D20000-0x0000000001D21000-memory.dmp

Filesize
4KB

Download
memory/1600-3-0x0000000000200000-0x0000000000201000-memory.dmp

Filesize
4KB

Download
memory/1600-79-0x0000000001D40000-0x0000000001D42000-memory.dmp

Filesize
8KB

Download
memory/1600-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1600-107-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1600-26-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1600-25-0x0000000000404000-0x0000000000405000-memory.dmp

Filesize
4KB

Download
memory/1600-5-0x0000000000200000-0x0000000000201000-memory.dmp

Filesize
4KB

Download
memory/1600-15-0x00000000002A0000-0x00000000002A1000-memory.dmp

Filesize
4KB

Download
memory/2168-177-0x00000000002F0000-0x00000000002F1000-memory.dmp

Filesize
4KB

Download
memory/2168-166-0x0000000000250000-0x0000000000251000-memory.dmp

Filesize
4KB

Download
memory/2168-244-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2168-251-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2168-156-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads