modiloader | 87dd5ccc1ea753b63dcc3ee9c9d2fadd6d458125e4705d4b3b26419612d8fac3

Analysis

max time kernel
119s
max time network
118s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
03-09-2024 09:59

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General

Target

17df6ab49bd95fd94f0ce934167adb60N.exe
Size

90KB
MD5

17df6ab49bd95fd94f0ce934167adb60
SHA1

beba54f22848a5c0687133c1e3bfed2cb93a3a8a
SHA256

87dd5ccc1ea753b63dcc3ee9c9d2fadd6d458125e4705d4b3b26419612d8fac3
SHA512

c61d8085782f43d85c4dbb164ffb5e050cdc10552237cb198d074dc3ceccc48d0259149fc005901f46971304d826a5e2326160e9b234a71ed12fb40d72fdedc1
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 Second Stage 4 IoCs

resource	yara_rule
behavioral2/memory/2400-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2400-58-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2400-57-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2400-63-0x0000000000400000-0x0000000000414000-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-1-5-21-656926755-4116854191-210765258-1000\Control Panel\International\Geo\Nation	17df6ab49bd95fd94f0ce934167adb60N.exe

Executes dropped EXE 3 IoCs

pid	Process
1992	csrsll.exe
3812	csrsll.exe
2400	csrsll.exe

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral2/memory/5080-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/5080-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1388-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1388-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1388-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/5080-11-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x000a000000023404-29.dat	upx
behavioral2/memory/1992-36-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1388-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1992-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1992-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2400-47-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2400-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2400-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1992-56-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2400-58-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2400-57-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1388-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3812-62-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2400-63-0x0000000000400000-0x0000000000414000-memory.dmp	upx

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-1-5-21-656926755-4116854191-210765258-1000\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 5080 set thread context of 1388	5080	17df6ab49bd95fd94f0ce934167adb60N.exe	90
PID 1992 set thread context of 3812	1992	csrsll.exe	99
PID 1992 set thread context of 2400	1992	csrsll.exe	100

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	17df6ab49bd95fd94f0ce934167adb60N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	17df6ab49bd95fd94f0ce934167adb60N.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	3812	csrsll.exe
Token: SeDebugPrivilege	3812	csrsll.exe
Token: SeDebugPrivilege	3812	csrsll.exe
Token: SeDebugPrivilege	3812	csrsll.exe
Token: SeDebugPrivilege	3812	csrsll.exe
Token: SeDebugPrivilege	3812	csrsll.exe
Token: SeDebugPrivilege	3812	csrsll.exe
Token: SeDebugPrivilege	3812	csrsll.exe
Token: SeDebugPrivilege	3812	csrsll.exe
Token: SeDebugPrivilege	3812	csrsll.exe
Token: SeDebugPrivilege	3812	csrsll.exe
Token: SeDebugPrivilege	3812	csrsll.exe
Token: SeDebugPrivilege	3812	csrsll.exe
Token: SeDebugPrivilege	3812	csrsll.exe
Token: SeDebugPrivilege	3812	csrsll.exe
Token: SeDebugPrivilege	3812	csrsll.exe
Token: SeDebugPrivilege	3812	csrsll.exe
Token: SeDebugPrivilege	3812	csrsll.exe
Token: SeDebugPrivilege	3812	csrsll.exe
Token: SeDebugPrivilege	3812	csrsll.exe
Token: SeDebugPrivilege	3812	csrsll.exe
Token: SeDebugPrivilege	3812	csrsll.exe
Token: SeDebugPrivilege	3812	csrsll.exe
Token: SeDebugPrivilege	3812	csrsll.exe
Token: SeDebugPrivilege	3812	csrsll.exe
Token: SeDebugPrivilege	3812	csrsll.exe
Token: SeDebugPrivilege	3812	csrsll.exe
Token: SeDebugPrivilege	3812	csrsll.exe
Token: SeDebugPrivilege	3812	csrsll.exe
Token: SeDebugPrivilege	3812	csrsll.exe
Token: SeDebugPrivilege	3812	csrsll.exe
Token: SeDebugPrivilege	3812	csrsll.exe
Token: SeDebugPrivilege	3812	csrsll.exe
Token: SeDebugPrivilege	3812	csrsll.exe
Token: SeDebugPrivilege	3812	csrsll.exe
Token: SeDebugPrivilege	3812	csrsll.exe
Token: SeDebugPrivilege	3812	csrsll.exe
Token: SeDebugPrivilege	3812	csrsll.exe
Token: SeDebugPrivilege	3812	csrsll.exe
Token: SeDebugPrivilege	3812	csrsll.exe
Token: SeDebugPrivilege	3812	csrsll.exe
Token: SeDebugPrivilege	3812	csrsll.exe
Token: SeDebugPrivilege	3812	csrsll.exe
Token: SeDebugPrivilege	3812	csrsll.exe
Token: SeDebugPrivilege	3812	csrsll.exe
Token: SeDebugPrivilege	3812	csrsll.exe
Token: SeDebugPrivilege	3812	csrsll.exe
Token: SeDebugPrivilege	3812	csrsll.exe
Token: SeDebugPrivilege	3812	csrsll.exe
Token: SeDebugPrivilege	3812	csrsll.exe
Token: SeDebugPrivilege	3812	csrsll.exe
Token: SeDebugPrivilege	3812	csrsll.exe
Token: SeDebugPrivilege	3812	csrsll.exe
Token: SeDebugPrivilege	3812	csrsll.exe
Token: SeDebugPrivilege	3812	csrsll.exe
Token: SeDebugPrivilege	3812	csrsll.exe
Token: SeDebugPrivilege	3812	csrsll.exe
Token: SeDebugPrivilege	3812	csrsll.exe
Token: SeDebugPrivilege	3812	csrsll.exe
Token: SeDebugPrivilege	3812	csrsll.exe
Token: SeDebugPrivilege	3812	csrsll.exe
Token: SeDebugPrivilege	3812	csrsll.exe
Token: SeDebugPrivilege	3812	csrsll.exe
Token: SeDebugPrivilege	3812	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
5080	17df6ab49bd95fd94f0ce934167adb60N.exe
1388	17df6ab49bd95fd94f0ce934167adb60N.exe
1992	csrsll.exe
3812	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 5080 wrote to memory of 1388	5080	17df6ab49bd95fd94f0ce934167adb60N.exe	90
PID 5080 wrote to memory of 1388	5080	17df6ab49bd95fd94f0ce934167adb60N.exe	90
PID 5080 wrote to memory of 1388	5080	17df6ab49bd95fd94f0ce934167adb60N.exe	90
PID 5080 wrote to memory of 1388	5080	17df6ab49bd95fd94f0ce934167adb60N.exe	90
PID 5080 wrote to memory of 1388	5080	17df6ab49bd95fd94f0ce934167adb60N.exe	90
PID 5080 wrote to memory of 1388	5080	17df6ab49bd95fd94f0ce934167adb60N.exe	90
PID 5080 wrote to memory of 1388	5080	17df6ab49bd95fd94f0ce934167adb60N.exe	90
PID 5080 wrote to memory of 1388	5080	17df6ab49bd95fd94f0ce934167adb60N.exe	90
PID 1388 wrote to memory of 1596	1388	17df6ab49bd95fd94f0ce934167adb60N.exe	92
PID 1388 wrote to memory of 1596	1388	17df6ab49bd95fd94f0ce934167adb60N.exe	92
PID 1388 wrote to memory of 1596	1388	17df6ab49bd95fd94f0ce934167adb60N.exe	92
PID 1596 wrote to memory of 4684	1596	cmd.exe	95
PID 1596 wrote to memory of 4684	1596	cmd.exe	95
PID 1596 wrote to memory of 4684	1596	cmd.exe	95
PID 1388 wrote to memory of 1992	1388	17df6ab49bd95fd94f0ce934167adb60N.exe	96
PID 1388 wrote to memory of 1992	1388	17df6ab49bd95fd94f0ce934167adb60N.exe	96
PID 1388 wrote to memory of 1992	1388	17df6ab49bd95fd94f0ce934167adb60N.exe	96
PID 1992 wrote to memory of 3812	1992	csrsll.exe	99
PID 1992 wrote to memory of 3812	1992	csrsll.exe	99
PID 1992 wrote to memory of 3812	1992	csrsll.exe	99
PID 1992 wrote to memory of 3812	1992	csrsll.exe	99
PID 1992 wrote to memory of 3812	1992	csrsll.exe	99
PID 1992 wrote to memory of 3812	1992	csrsll.exe	99
PID 1992 wrote to memory of 3812	1992	csrsll.exe	99
PID 1992 wrote to memory of 3812	1992	csrsll.exe	99
PID 1992 wrote to memory of 2400	1992	csrsll.exe	100
PID 1992 wrote to memory of 2400	1992	csrsll.exe	100
PID 1992 wrote to memory of 2400	1992	csrsll.exe	100
PID 1992 wrote to memory of 2400	1992	csrsll.exe	100
PID 1992 wrote to memory of 2400	1992	csrsll.exe	100
PID 1992 wrote to memory of 2400	1992	csrsll.exe	100
PID 1992 wrote to memory of 2400	1992	csrsll.exe	100
PID 1992 wrote to memory of 2400	1992	csrsll.exe	100

C:\Users\Admin\AppData\Local\Temp\17df6ab49bd95fd94f0ce934167adb60N.exe
"C:\Users\Admin\AppData\Local\Temp\17df6ab49bd95fd94f0ce934167adb60N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:5080
- C:\Users\Admin\AppData\Local\Temp\17df6ab49bd95fd94f0ce934167adb60N.exe
  "C:\Users\Admin\AppData\Local\Temp\17df6ab49bd95fd94f0ce934167adb60N.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1388
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\WMIHU.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1596
  - - 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:4684
- - 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:1992
  - - 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:3812
  - - 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:2400

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

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Downloads

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

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
bbed34da3c35488496782ce9591140e7

SHA1
71416e8368f04353e8000e3ae777fdfbdc693e78

SHA256
68bd3af953f1affb235466ec5be1dbab684c7614e041f6b7a734ab7e4bf81f84

SHA512
36f5336d3b8cf924b6b42d7b5f7186070fa9087767cc6fa616d23f7c6347353fcad1209d3e4cb495bab5cb9beb3504c5d1d3d547de0cc5b1242b3dbb2b1def6e

Download Submit
memory/1388-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1388-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1388-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1388-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1388-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1388-59-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/1992-36-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1992-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1992-56-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1992-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2400-63-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2400-47-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2400-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2400-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2400-58-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2400-57-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3812-62-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/5080-6-0x0000000002B90000-0x0000000002B92000-memory.dmp

Filesize
8KB

Download
memory/5080-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/5080-3-0x0000000002B60000-0x0000000002B62000-memory.dmp

Filesize
8KB

Download
memory/5080-4-0x0000000002B70000-0x0000000002B72000-memory.dmp

Filesize
8KB

Download
memory/5080-11-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/5080-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads