modiloader | 660cb3e1c24bd8f631a670cdf7289c836f62c08fa1a131c49fa05256847568e6

Analysis

max time kernel
119s
max time network
119s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
01-01-2025 23:57

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General

Target

660cb3e1c24bd8f631a670cdf7289c836f62c08fa1a131c49fa05256847568e6.exe
Size

90KB
MD5

09fe65d0ad50657cd5270de8c891279e
SHA1

9f2c0c6befcaf621b5a51e682f821ed9d45b971c
SHA256

660cb3e1c24bd8f631a670cdf7289c836f62c08fa1a131c49fa05256847568e6
SHA512

5a319fc3c039d6203dd84613d36bdbf3cfdc8d632b66c01051a85b770250e384ee57f3cf66554b37f832f2eb7029425f54a8bff57a781b3f771c025d324cf013
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDk:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3a

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/4792-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4792-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4792-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4792-62-0x0000000000400000-0x0000000000414000-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-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	660cb3e1c24bd8f631a670cdf7289c836f62c08fa1a131c49fa05256847568e6.exe

Executes dropped EXE 3 IoCs

pid	Process
1224	csrsll.exe
3960	csrsll.exe
4792	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-1-5-21-3227495264-2217614367-4027411560-1000\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 3832 set thread context of 3084	3832	660cb3e1c24bd8f631a670cdf7289c836f62c08fa1a131c49fa05256847568e6.exe	82
PID 1224 set thread context of 3960	1224	csrsll.exe	93
PID 1224 set thread context of 4792	1224	csrsll.exe	94

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3832-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3832-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3084-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3084-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3084-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3832-12-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x0008000000023c7e-29.dat	upx
behavioral2/memory/3084-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1224-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1224-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4792-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4792-45-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4792-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4792-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4792-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1224-57-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3084-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3960-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4792-62-0x0000000000400000-0x0000000000414000-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	660cb3e1c24bd8f631a670cdf7289c836f62c08fa1a131c49fa05256847568e6.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	660cb3e1c24bd8f631a670cdf7289c836f62c08fa1a131c49fa05256847568e6.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	3960	csrsll.exe
Token: SeDebugPrivilege	3960	csrsll.exe
Token: SeDebugPrivilege	3960	csrsll.exe
Token: SeDebugPrivilege	3960	csrsll.exe
Token: SeDebugPrivilege	3960	csrsll.exe
Token: SeDebugPrivilege	3960	csrsll.exe
Token: SeDebugPrivilege	3960	csrsll.exe
Token: SeDebugPrivilege	3960	csrsll.exe
Token: SeDebugPrivilege	3960	csrsll.exe
Token: SeDebugPrivilege	3960	csrsll.exe
Token: SeDebugPrivilege	3960	csrsll.exe
Token: SeDebugPrivilege	3960	csrsll.exe
Token: SeDebugPrivilege	3960	csrsll.exe
Token: SeDebugPrivilege	3960	csrsll.exe
Token: SeDebugPrivilege	3960	csrsll.exe
Token: SeDebugPrivilege	3960	csrsll.exe
Token: SeDebugPrivilege	3960	csrsll.exe
Token: SeDebugPrivilege	3960	csrsll.exe
Token: SeDebugPrivilege	3960	csrsll.exe
Token: SeDebugPrivilege	3960	csrsll.exe
Token: SeDebugPrivilege	3960	csrsll.exe
Token: SeDebugPrivilege	3960	csrsll.exe
Token: SeDebugPrivilege	3960	csrsll.exe
Token: SeDebugPrivilege	3960	csrsll.exe
Token: SeDebugPrivilege	3960	csrsll.exe
Token: SeDebugPrivilege	3960	csrsll.exe
Token: SeDebugPrivilege	3960	csrsll.exe
Token: SeDebugPrivilege	3960	csrsll.exe
Token: SeDebugPrivilege	3960	csrsll.exe
Token: SeDebugPrivilege	3960	csrsll.exe
Token: SeDebugPrivilege	3960	csrsll.exe
Token: SeDebugPrivilege	3960	csrsll.exe
Token: SeDebugPrivilege	3960	csrsll.exe
Token: SeDebugPrivilege	3960	csrsll.exe
Token: SeDebugPrivilege	3960	csrsll.exe
Token: SeDebugPrivilege	3960	csrsll.exe
Token: SeDebugPrivilege	3960	csrsll.exe
Token: SeDebugPrivilege	3960	csrsll.exe
Token: SeDebugPrivilege	3960	csrsll.exe
Token: SeDebugPrivilege	3960	csrsll.exe
Token: SeDebugPrivilege	3960	csrsll.exe
Token: SeDebugPrivilege	3960	csrsll.exe
Token: SeDebugPrivilege	3960	csrsll.exe
Token: SeDebugPrivilege	3960	csrsll.exe
Token: SeDebugPrivilege	3960	csrsll.exe
Token: SeDebugPrivilege	3960	csrsll.exe
Token: SeDebugPrivilege	3960	csrsll.exe
Token: SeDebugPrivilege	3960	csrsll.exe
Token: SeDebugPrivilege	3960	csrsll.exe
Token: SeDebugPrivilege	3960	csrsll.exe
Token: SeDebugPrivilege	3960	csrsll.exe
Token: SeDebugPrivilege	3960	csrsll.exe
Token: SeDebugPrivilege	3960	csrsll.exe
Token: SeDebugPrivilege	3960	csrsll.exe
Token: SeDebugPrivilege	3960	csrsll.exe
Token: SeDebugPrivilege	3960	csrsll.exe
Token: SeDebugPrivilege	3960	csrsll.exe
Token: SeDebugPrivilege	3960	csrsll.exe
Token: SeDebugPrivilege	3960	csrsll.exe
Token: SeDebugPrivilege	3960	csrsll.exe
Token: SeDebugPrivilege	3960	csrsll.exe
Token: SeDebugPrivilege	3960	csrsll.exe
Token: SeDebugPrivilege	3960	csrsll.exe
Token: SeDebugPrivilege	3960	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
3832	660cb3e1c24bd8f631a670cdf7289c836f62c08fa1a131c49fa05256847568e6.exe
3084	660cb3e1c24bd8f631a670cdf7289c836f62c08fa1a131c49fa05256847568e6.exe
1224	csrsll.exe
3960	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 3832 wrote to memory of 3084	3832	660cb3e1c24bd8f631a670cdf7289c836f62c08fa1a131c49fa05256847568e6.exe	82
PID 3832 wrote to memory of 3084	3832	660cb3e1c24bd8f631a670cdf7289c836f62c08fa1a131c49fa05256847568e6.exe	82
PID 3832 wrote to memory of 3084	3832	660cb3e1c24bd8f631a670cdf7289c836f62c08fa1a131c49fa05256847568e6.exe	82
PID 3832 wrote to memory of 3084	3832	660cb3e1c24bd8f631a670cdf7289c836f62c08fa1a131c49fa05256847568e6.exe	82
PID 3832 wrote to memory of 3084	3832	660cb3e1c24bd8f631a670cdf7289c836f62c08fa1a131c49fa05256847568e6.exe	82
PID 3832 wrote to memory of 3084	3832	660cb3e1c24bd8f631a670cdf7289c836f62c08fa1a131c49fa05256847568e6.exe	82
PID 3832 wrote to memory of 3084	3832	660cb3e1c24bd8f631a670cdf7289c836f62c08fa1a131c49fa05256847568e6.exe	82
PID 3832 wrote to memory of 3084	3832	660cb3e1c24bd8f631a670cdf7289c836f62c08fa1a131c49fa05256847568e6.exe	82
PID 3084 wrote to memory of 4852	3084	660cb3e1c24bd8f631a670cdf7289c836f62c08fa1a131c49fa05256847568e6.exe	83
PID 3084 wrote to memory of 4852	3084	660cb3e1c24bd8f631a670cdf7289c836f62c08fa1a131c49fa05256847568e6.exe	83
PID 3084 wrote to memory of 4852	3084	660cb3e1c24bd8f631a670cdf7289c836f62c08fa1a131c49fa05256847568e6.exe	83
PID 4852 wrote to memory of 3748	4852	cmd.exe	86
PID 4852 wrote to memory of 3748	4852	cmd.exe	86
PID 4852 wrote to memory of 3748	4852	cmd.exe	86
PID 3084 wrote to memory of 1224	3084	660cb3e1c24bd8f631a670cdf7289c836f62c08fa1a131c49fa05256847568e6.exe	87
PID 3084 wrote to memory of 1224	3084	660cb3e1c24bd8f631a670cdf7289c836f62c08fa1a131c49fa05256847568e6.exe	87
PID 3084 wrote to memory of 1224	3084	660cb3e1c24bd8f631a670cdf7289c836f62c08fa1a131c49fa05256847568e6.exe	87
PID 1224 wrote to memory of 3960	1224	csrsll.exe	93
PID 1224 wrote to memory of 3960	1224	csrsll.exe	93
PID 1224 wrote to memory of 3960	1224	csrsll.exe	93
PID 1224 wrote to memory of 3960	1224	csrsll.exe	93
PID 1224 wrote to memory of 3960	1224	csrsll.exe	93
PID 1224 wrote to memory of 3960	1224	csrsll.exe	93
PID 1224 wrote to memory of 3960	1224	csrsll.exe	93
PID 1224 wrote to memory of 3960	1224	csrsll.exe	93
PID 1224 wrote to memory of 4792	1224	csrsll.exe	94
PID 1224 wrote to memory of 4792	1224	csrsll.exe	94
PID 1224 wrote to memory of 4792	1224	csrsll.exe	94
PID 1224 wrote to memory of 4792	1224	csrsll.exe	94
PID 1224 wrote to memory of 4792	1224	csrsll.exe	94
PID 1224 wrote to memory of 4792	1224	csrsll.exe	94
PID 1224 wrote to memory of 4792	1224	csrsll.exe	94
PID 1224 wrote to memory of 4792	1224	csrsll.exe	94

C:\Users\Admin\AppData\Local\Temp\660cb3e1c24bd8f631a670cdf7289c836f62c08fa1a131c49fa05256847568e6.exe
"C:\Users\Admin\AppData\Local\Temp\660cb3e1c24bd8f631a670cdf7289c836f62c08fa1a131c49fa05256847568e6.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3832
- C:\Users\Admin\AppData\Local\Temp\660cb3e1c24bd8f631a670cdf7289c836f62c08fa1a131c49fa05256847568e6.exe
  "C:\Users\Admin\AppData\Local\Temp\660cb3e1c24bd8f631a670cdf7289c836f62c08fa1a131c49fa05256847568e6.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3084
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\KPLMX.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4852
  - - 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:3748
- - 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:1224
  - - 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:3960
  - - 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:4792

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\KPLMX.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
ef5d9969bf5f010197b1cb909546b8a4

SHA1
a8313f7c9ded0ab56652744bce79337f2b3fad8c

SHA256
8e2544953e2c9b65cfd198ce0a88215ab38b9b4aa87410fd2b19df84c6ef38f0

SHA512
4aa019a95833fce44e6f9c19eb0534b89f4048492b6d38a18b4d4e2c45e12fd228723a02308e1cc59204e0829931aa1cb2ef791ed5170004aec416c05cc377c9

Download Submit
memory/1224-57-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1224-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1224-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3084-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3084-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3084-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3084-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3084-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3832-3-0x0000000002B50000-0x0000000002B52000-memory.dmp

Filesize
8KB

Download
memory/3832-12-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3832-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3832-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3832-6-0x0000000002B80000-0x0000000002B82000-memory.dmp

Filesize
8KB

Download
memory/3832-4-0x0000000002B60000-0x0000000002B62000-memory.dmp

Filesize
8KB

Download
memory/3960-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4792-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4792-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4792-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4792-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4792-45-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4792-62-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads