modiloader | c0c8c5d326f501e88abe18f5ec2f3d4401baa5520b9f8e4ab10d2b4f5d62abd3

Analysis

max time kernel
120s
max time network
118s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
11-12-2024 15:21

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General

Target

c0c8c5d326f501e88abe18f5ec2f3d4401baa5520b9f8e4ab10d2b4f5d62abd3N.exe
Size

90KB
MD5

9f59b151103cbc258e6cd5f08912f0b0
SHA1

3f189599d23617bb425e7cbbaed7ec156913e22e
SHA256

c0c8c5d326f501e88abe18f5ec2f3d4401baa5520b9f8e4ab10d2b4f5d62abd3
SHA512

877eb41885d13c6d77fbe4951204702bf1f2cec827e9c98c425040d350283ea76d98bb8ca182c223486e59414d6fd812d9ece8f90de39f59e8af73538c9251a4
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDM:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3m

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/4368-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4368-57-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4368-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4368-62-0x0000000000400000-0x0000000000414000-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	c0c8c5d326f501e88abe18f5ec2f3d4401baa5520b9f8e4ab10d2b4f5d62abd3N.exe

Executes dropped EXE 3 IoCs

pid	Process
1648	csrsll.exe
4252	csrsll.exe
4368	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 4752 set thread context of 4844	4752	c0c8c5d326f501e88abe18f5ec2f3d4401baa5520b9f8e4ab10d2b4f5d62abd3N.exe	83
PID 1648 set thread context of 4252	1648	csrsll.exe	97
PID 1648 set thread context of 4368	1648	csrsll.exe	98

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4752-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4752-4-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4844-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4844-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4752-13-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4844-12-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x0008000000023cb5-29.dat	upx
behavioral2/memory/4844-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1648-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1648-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4368-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4368-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4368-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4368-57-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4368-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1648-58-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4844-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4252-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4368-62-0x0000000000400000-0x0000000000414000-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	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c0c8c5d326f501e88abe18f5ec2f3d4401baa5520b9f8e4ab10d2b4f5d62abd3N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c0c8c5d326f501e88abe18f5ec2f3d4401baa5520b9f8e4ab10d2b4f5d62abd3N.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

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	4252	csrsll.exe
Token: SeDebugPrivilege	4252	csrsll.exe
Token: SeDebugPrivilege	4252	csrsll.exe
Token: SeDebugPrivilege	4252	csrsll.exe
Token: SeDebugPrivilege	4252	csrsll.exe
Token: SeDebugPrivilege	4252	csrsll.exe
Token: SeDebugPrivilege	4252	csrsll.exe
Token: SeDebugPrivilege	4252	csrsll.exe
Token: SeDebugPrivilege	4252	csrsll.exe
Token: SeDebugPrivilege	4252	csrsll.exe
Token: SeDebugPrivilege	4252	csrsll.exe
Token: SeDebugPrivilege	4252	csrsll.exe
Token: SeDebugPrivilege	4252	csrsll.exe
Token: SeDebugPrivilege	4252	csrsll.exe
Token: SeDebugPrivilege	4252	csrsll.exe
Token: SeDebugPrivilege	4252	csrsll.exe
Token: SeDebugPrivilege	4252	csrsll.exe
Token: SeDebugPrivilege	4252	csrsll.exe
Token: SeDebugPrivilege	4252	csrsll.exe
Token: SeDebugPrivilege	4252	csrsll.exe
Token: SeDebugPrivilege	4252	csrsll.exe
Token: SeDebugPrivilege	4252	csrsll.exe
Token: SeDebugPrivilege	4252	csrsll.exe
Token: SeDebugPrivilege	4252	csrsll.exe
Token: SeDebugPrivilege	4252	csrsll.exe
Token: SeDebugPrivilege	4252	csrsll.exe
Token: SeDebugPrivilege	4252	csrsll.exe
Token: SeDebugPrivilege	4252	csrsll.exe
Token: SeDebugPrivilege	4252	csrsll.exe
Token: SeDebugPrivilege	4252	csrsll.exe
Token: SeDebugPrivilege	4252	csrsll.exe
Token: SeDebugPrivilege	4252	csrsll.exe
Token: SeDebugPrivilege	4252	csrsll.exe
Token: SeDebugPrivilege	4252	csrsll.exe
Token: SeDebugPrivilege	4252	csrsll.exe
Token: SeDebugPrivilege	4252	csrsll.exe
Token: SeDebugPrivilege	4252	csrsll.exe
Token: SeDebugPrivilege	4252	csrsll.exe
Token: SeDebugPrivilege	4252	csrsll.exe
Token: SeDebugPrivilege	4252	csrsll.exe
Token: SeDebugPrivilege	4252	csrsll.exe
Token: SeDebugPrivilege	4252	csrsll.exe
Token: SeDebugPrivilege	4252	csrsll.exe
Token: SeDebugPrivilege	4252	csrsll.exe
Token: SeDebugPrivilege	4252	csrsll.exe
Token: SeDebugPrivilege	4252	csrsll.exe
Token: SeDebugPrivilege	4252	csrsll.exe
Token: SeDebugPrivilege	4252	csrsll.exe
Token: SeDebugPrivilege	4252	csrsll.exe
Token: SeDebugPrivilege	4252	csrsll.exe
Token: SeDebugPrivilege	4252	csrsll.exe
Token: SeDebugPrivilege	4252	csrsll.exe
Token: SeDebugPrivilege	4252	csrsll.exe
Token: SeDebugPrivilege	4252	csrsll.exe
Token: SeDebugPrivilege	4252	csrsll.exe
Token: SeDebugPrivilege	4252	csrsll.exe
Token: SeDebugPrivilege	4252	csrsll.exe
Token: SeDebugPrivilege	4252	csrsll.exe
Token: SeDebugPrivilege	4252	csrsll.exe
Token: SeDebugPrivilege	4252	csrsll.exe
Token: SeDebugPrivilege	4252	csrsll.exe
Token: SeDebugPrivilege	4252	csrsll.exe
Token: SeDebugPrivilege	4252	csrsll.exe
Token: SeDebugPrivilege	4252	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
4752	c0c8c5d326f501e88abe18f5ec2f3d4401baa5520b9f8e4ab10d2b4f5d62abd3N.exe
4844	c0c8c5d326f501e88abe18f5ec2f3d4401baa5520b9f8e4ab10d2b4f5d62abd3N.exe
1648	csrsll.exe
4252	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 4752 wrote to memory of 4844	4752	c0c8c5d326f501e88abe18f5ec2f3d4401baa5520b9f8e4ab10d2b4f5d62abd3N.exe	83
PID 4752 wrote to memory of 4844	4752	c0c8c5d326f501e88abe18f5ec2f3d4401baa5520b9f8e4ab10d2b4f5d62abd3N.exe	83
PID 4752 wrote to memory of 4844	4752	c0c8c5d326f501e88abe18f5ec2f3d4401baa5520b9f8e4ab10d2b4f5d62abd3N.exe	83
PID 4752 wrote to memory of 4844	4752	c0c8c5d326f501e88abe18f5ec2f3d4401baa5520b9f8e4ab10d2b4f5d62abd3N.exe	83
PID 4752 wrote to memory of 4844	4752	c0c8c5d326f501e88abe18f5ec2f3d4401baa5520b9f8e4ab10d2b4f5d62abd3N.exe	83
PID 4752 wrote to memory of 4844	4752	c0c8c5d326f501e88abe18f5ec2f3d4401baa5520b9f8e4ab10d2b4f5d62abd3N.exe	83
PID 4752 wrote to memory of 4844	4752	c0c8c5d326f501e88abe18f5ec2f3d4401baa5520b9f8e4ab10d2b4f5d62abd3N.exe	83
PID 4752 wrote to memory of 4844	4752	c0c8c5d326f501e88abe18f5ec2f3d4401baa5520b9f8e4ab10d2b4f5d62abd3N.exe	83
PID 4844 wrote to memory of 4324	4844	c0c8c5d326f501e88abe18f5ec2f3d4401baa5520b9f8e4ab10d2b4f5d62abd3N.exe	84
PID 4844 wrote to memory of 4324	4844	c0c8c5d326f501e88abe18f5ec2f3d4401baa5520b9f8e4ab10d2b4f5d62abd3N.exe	84
PID 4844 wrote to memory of 4324	4844	c0c8c5d326f501e88abe18f5ec2f3d4401baa5520b9f8e4ab10d2b4f5d62abd3N.exe	84
PID 4324 wrote to memory of 1068	4324	cmd.exe	88
PID 4324 wrote to memory of 1068	4324	cmd.exe	88
PID 4324 wrote to memory of 1068	4324	cmd.exe	88
PID 4844 wrote to memory of 1648	4844	c0c8c5d326f501e88abe18f5ec2f3d4401baa5520b9f8e4ab10d2b4f5d62abd3N.exe	89
PID 4844 wrote to memory of 1648	4844	c0c8c5d326f501e88abe18f5ec2f3d4401baa5520b9f8e4ab10d2b4f5d62abd3N.exe	89
PID 4844 wrote to memory of 1648	4844	c0c8c5d326f501e88abe18f5ec2f3d4401baa5520b9f8e4ab10d2b4f5d62abd3N.exe	89
PID 1648 wrote to memory of 4252	1648	csrsll.exe	97
PID 1648 wrote to memory of 4252	1648	csrsll.exe	97
PID 1648 wrote to memory of 4252	1648	csrsll.exe	97
PID 1648 wrote to memory of 4252	1648	csrsll.exe	97
PID 1648 wrote to memory of 4252	1648	csrsll.exe	97
PID 1648 wrote to memory of 4252	1648	csrsll.exe	97
PID 1648 wrote to memory of 4252	1648	csrsll.exe	97
PID 1648 wrote to memory of 4252	1648	csrsll.exe	97
PID 1648 wrote to memory of 4368	1648	csrsll.exe	98
PID 1648 wrote to memory of 4368	1648	csrsll.exe	98
PID 1648 wrote to memory of 4368	1648	csrsll.exe	98
PID 1648 wrote to memory of 4368	1648	csrsll.exe	98
PID 1648 wrote to memory of 4368	1648	csrsll.exe	98
PID 1648 wrote to memory of 4368	1648	csrsll.exe	98
PID 1648 wrote to memory of 4368	1648	csrsll.exe	98
PID 1648 wrote to memory of 4368	1648	csrsll.exe	98

C:\Users\Admin\AppData\Local\Temp\c0c8c5d326f501e88abe18f5ec2f3d4401baa5520b9f8e4ab10d2b4f5d62abd3N.exe
"C:\Users\Admin\AppData\Local\Temp\c0c8c5d326f501e88abe18f5ec2f3d4401baa5520b9f8e4ab10d2b4f5d62abd3N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4752
- C:\Users\Admin\AppData\Local\Temp\c0c8c5d326f501e88abe18f5ec2f3d4401baa5520b9f8e4ab10d2b4f5d62abd3N.exe
  "C:\Users\Admin\AppData\Local\Temp\c0c8c5d326f501e88abe18f5ec2f3d4401baa5520b9f8e4ab10d2b4f5d62abd3N.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4844
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\LUSDX.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4324
  - - 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:1068
- - 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:1648
  - - 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:4252
  - - 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:4368

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\LUSDX.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
89f1bd9d7dd9c34f1582b4a212a65967

SHA1
e82360ad57c9c2441c39963023d67c2b18f6426d

SHA256
b181281c77b89476f6a8327e68c90baad4adc38fb3239555a6ab04a2455ff511

SHA512
ade3c6ce864bf3e1ecba23aaeb8421e31c46d85ef0297b1201da18f07258236e06d048ae6543cd440d9a53918f3f5302d368aca9dc64346d91ba6b05c47657c6

Download Submit
memory/1648-58-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1648-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1648-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4252-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4368-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4368-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4368-62-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4368-57-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4368-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4368-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4752-6-0x0000000002310000-0x0000000002312000-memory.dmp

Filesize
8KB

Download
memory/4752-4-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4752-5-0x0000000002320000-0x0000000002322000-memory.dmp

Filesize
8KB

Download
memory/4752-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4752-13-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4752-3-0x00000000022F0000-0x00000000022F2000-memory.dmp

Filesize
8KB

Download
memory/4844-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4844-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4844-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4844-59-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/4844-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4844-12-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads