modiloader | cf16460e0683bf23d92698a4e92e81bad0278f78b35bd0da051e31772133858b

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-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 4 IoCs

resource	yara_rule
behavioral2/memory/4852-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4852-57-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4852-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4852-62-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	cf16460e0683bf23d92698a4e92e81bad0278f78b35bd0da051e31772133858b.exe

Executes dropped EXE 3 IoCs

pid	Process
4592	csrsll.exe
2276	csrsll.exe
4852	csrsll.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-1-5-21-2045521122-590294423-3465680274-1000\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 2808 set thread context of 1660	2808	cf16460e0683bf23d92698a4e92e81bad0278f78b35bd0da051e31772133858b.exe	84
PID 4592 set thread context of 2276	4592	csrsll.exe	93
PID 4592 set thread context of 4852	4592	csrsll.exe	94

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2808-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2808-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1660-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1660-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1660-12-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2808-13-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x0008000000023c8c-30.dat	upx
behavioral2/memory/1660-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4592-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4592-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4852-46-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4852-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4852-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4852-57-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4592-56-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1660-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4852-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2276-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4852-62-0x0000000000400000-0x0000000000414000-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	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	cf16460e0683bf23d92698a4e92e81bad0278f78b35bd0da051e31772133858b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cf16460e0683bf23d92698a4e92e81bad0278f78b35bd0da051e31772133858b.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2276	csrsll.exe
Token: SeDebugPrivilege	2276	csrsll.exe
Token: SeDebugPrivilege	2276	csrsll.exe
Token: SeDebugPrivilege	2276	csrsll.exe
Token: SeDebugPrivilege	2276	csrsll.exe
Token: SeDebugPrivilege	2276	csrsll.exe
Token: SeDebugPrivilege	2276	csrsll.exe
Token: SeDebugPrivilege	2276	csrsll.exe
Token: SeDebugPrivilege	2276	csrsll.exe
Token: SeDebugPrivilege	2276	csrsll.exe
Token: SeDebugPrivilege	2276	csrsll.exe
Token: SeDebugPrivilege	2276	csrsll.exe
Token: SeDebugPrivilege	2276	csrsll.exe
Token: SeDebugPrivilege	2276	csrsll.exe
Token: SeDebugPrivilege	2276	csrsll.exe
Token: SeDebugPrivilege	2276	csrsll.exe
Token: SeDebugPrivilege	2276	csrsll.exe
Token: SeDebugPrivilege	2276	csrsll.exe
Token: SeDebugPrivilege	2276	csrsll.exe
Token: SeDebugPrivilege	2276	csrsll.exe
Token: SeDebugPrivilege	2276	csrsll.exe
Token: SeDebugPrivilege	2276	csrsll.exe
Token: SeDebugPrivilege	2276	csrsll.exe
Token: SeDebugPrivilege	2276	csrsll.exe
Token: SeDebugPrivilege	2276	csrsll.exe
Token: SeDebugPrivilege	2276	csrsll.exe
Token: SeDebugPrivilege	2276	csrsll.exe
Token: SeDebugPrivilege	2276	csrsll.exe
Token: SeDebugPrivilege	2276	csrsll.exe
Token: SeDebugPrivilege	2276	csrsll.exe
Token: SeDebugPrivilege	2276	csrsll.exe
Token: SeDebugPrivilege	2276	csrsll.exe
Token: SeDebugPrivilege	2276	csrsll.exe
Token: SeDebugPrivilege	2276	csrsll.exe
Token: SeDebugPrivilege	2276	csrsll.exe
Token: SeDebugPrivilege	2276	csrsll.exe
Token: SeDebugPrivilege	2276	csrsll.exe
Token: SeDebugPrivilege	2276	csrsll.exe
Token: SeDebugPrivilege	2276	csrsll.exe
Token: SeDebugPrivilege	2276	csrsll.exe
Token: SeDebugPrivilege	2276	csrsll.exe
Token: SeDebugPrivilege	2276	csrsll.exe
Token: SeDebugPrivilege	2276	csrsll.exe
Token: SeDebugPrivilege	2276	csrsll.exe
Token: SeDebugPrivilege	2276	csrsll.exe
Token: SeDebugPrivilege	2276	csrsll.exe
Token: SeDebugPrivilege	2276	csrsll.exe
Token: SeDebugPrivilege	2276	csrsll.exe
Token: SeDebugPrivilege	2276	csrsll.exe
Token: SeDebugPrivilege	2276	csrsll.exe
Token: SeDebugPrivilege	2276	csrsll.exe
Token: SeDebugPrivilege	2276	csrsll.exe
Token: SeDebugPrivilege	2276	csrsll.exe
Token: SeDebugPrivilege	2276	csrsll.exe
Token: SeDebugPrivilege	2276	csrsll.exe
Token: SeDebugPrivilege	2276	csrsll.exe
Token: SeDebugPrivilege	2276	csrsll.exe
Token: SeDebugPrivilege	2276	csrsll.exe
Token: SeDebugPrivilege	2276	csrsll.exe
Token: SeDebugPrivilege	2276	csrsll.exe
Token: SeDebugPrivilege	2276	csrsll.exe
Token: SeDebugPrivilege	2276	csrsll.exe
Token: SeDebugPrivilege	2276	csrsll.exe
Token: SeDebugPrivilege	2276	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2808	cf16460e0683bf23d92698a4e92e81bad0278f78b35bd0da051e31772133858b.exe
1660	cf16460e0683bf23d92698a4e92e81bad0278f78b35bd0da051e31772133858b.exe
4592	csrsll.exe
2276	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 2808 wrote to memory of 1660	2808	cf16460e0683bf23d92698a4e92e81bad0278f78b35bd0da051e31772133858b.exe	84
PID 2808 wrote to memory of 1660	2808	cf16460e0683bf23d92698a4e92e81bad0278f78b35bd0da051e31772133858b.exe	84
PID 2808 wrote to memory of 1660	2808	cf16460e0683bf23d92698a4e92e81bad0278f78b35bd0da051e31772133858b.exe	84
PID 2808 wrote to memory of 1660	2808	cf16460e0683bf23d92698a4e92e81bad0278f78b35bd0da051e31772133858b.exe	84
PID 2808 wrote to memory of 1660	2808	cf16460e0683bf23d92698a4e92e81bad0278f78b35bd0da051e31772133858b.exe	84
PID 2808 wrote to memory of 1660	2808	cf16460e0683bf23d92698a4e92e81bad0278f78b35bd0da051e31772133858b.exe	84
PID 2808 wrote to memory of 1660	2808	cf16460e0683bf23d92698a4e92e81bad0278f78b35bd0da051e31772133858b.exe	84
PID 2808 wrote to memory of 1660	2808	cf16460e0683bf23d92698a4e92e81bad0278f78b35bd0da051e31772133858b.exe	84
PID 1660 wrote to memory of 4316	1660	cf16460e0683bf23d92698a4e92e81bad0278f78b35bd0da051e31772133858b.exe	85
PID 1660 wrote to memory of 4316	1660	cf16460e0683bf23d92698a4e92e81bad0278f78b35bd0da051e31772133858b.exe	85
PID 1660 wrote to memory of 4316	1660	cf16460e0683bf23d92698a4e92e81bad0278f78b35bd0da051e31772133858b.exe	85
PID 4316 wrote to memory of 1780	4316	cmd.exe	89
PID 4316 wrote to memory of 1780	4316	cmd.exe	89
PID 4316 wrote to memory of 1780	4316	cmd.exe	89
PID 1660 wrote to memory of 4592	1660	cf16460e0683bf23d92698a4e92e81bad0278f78b35bd0da051e31772133858b.exe	90
PID 1660 wrote to memory of 4592	1660	cf16460e0683bf23d92698a4e92e81bad0278f78b35bd0da051e31772133858b.exe	90
PID 1660 wrote to memory of 4592	1660	cf16460e0683bf23d92698a4e92e81bad0278f78b35bd0da051e31772133858b.exe	90
PID 4592 wrote to memory of 2276	4592	csrsll.exe	93
PID 4592 wrote to memory of 2276	4592	csrsll.exe	93
PID 4592 wrote to memory of 2276	4592	csrsll.exe	93
PID 4592 wrote to memory of 2276	4592	csrsll.exe	93
PID 4592 wrote to memory of 2276	4592	csrsll.exe	93
PID 4592 wrote to memory of 2276	4592	csrsll.exe	93
PID 4592 wrote to memory of 2276	4592	csrsll.exe	93
PID 4592 wrote to memory of 2276	4592	csrsll.exe	93
PID 4592 wrote to memory of 4852	4592	csrsll.exe	94
PID 4592 wrote to memory of 4852	4592	csrsll.exe	94
PID 4592 wrote to memory of 4852	4592	csrsll.exe	94
PID 4592 wrote to memory of 4852	4592	csrsll.exe	94
PID 4592 wrote to memory of 4852	4592	csrsll.exe	94
PID 4592 wrote to memory of 4852	4592	csrsll.exe	94
PID 4592 wrote to memory of 4852	4592	csrsll.exe	94
PID 4592 wrote to memory of 4852	4592	csrsll.exe	94

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:2808
- C:\Users\Admin\AppData\Local\Temp\cf16460e0683bf23d92698a4e92e81bad0278f78b35bd0da051e31772133858b.exe
  "C:\Users\Admin\AppData\Local\Temp\cf16460e0683bf23d92698a4e92e81bad0278f78b35bd0da051e31772133858b.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1660
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\YFGDL.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4316
  - - 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:1780
- - 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:4592
  - - 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:2276
  - - 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:4852

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

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\YFGDL.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
9138e964e4d5ab766eee64073279e3bd

SHA1
52b29e5bc87cdf4402a8b5d1e82332803d2a3862

SHA256
3c0a32ff09b37e7d1fd210f6fab56dd11807a17a6d9fe16d0298d5b1ffbc91aa

SHA512
ddbddb12fd9c623220be18e7194fd7a68821b539bc3ef4002efb312302117f10e6313dc130f7e2ed475a2f4497255cab9d1598e33d5a8a495b27aa406b2d5a1c

Download Submit
memory/1660-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1660-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1660-58-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/1660-12-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1660-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1660-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2276-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2808-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2808-6-0x0000000002B90000-0x0000000002B92000-memory.dmp

Filesize
8KB

Download
memory/2808-13-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2808-4-0x0000000002B70000-0x0000000002B72000-memory.dmp

Filesize
8KB

Download
memory/2808-3-0x0000000002B60000-0x0000000002B62000-memory.dmp

Filesize
8KB

Download
memory/2808-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4592-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4592-56-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4592-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4852-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4852-57-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4852-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4852-46-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4852-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4852-62-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads