modiloader | fdf4b173824222e963fd6530874d13b8d4b3eb161afdc51a6a858fd4c1a3575b

Resubmissions

16/12/2024, 19:08

241216-xtpkmsynfn 10

16/12/2024, 19:04

241216-xq3yvsxqfv 10

Analysis

max time kernel
106s
max time network
105s
platform
windows11-21h2_x64
resource
win11-20241007-en
resource tags

arch:x64arch:x86image:win11-20241007-enlocale:en-usos:windows11-21h2-x64system
submitted
16/12/2024, 19:08

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General

Target

fdf4b173824222e963fd6530874d13b8d4b3eb161afdc51a6a858fd4c1a3575bN.exe
Size

90KB
MD5

2572f7614e1f21ba220665922c12e540
SHA1

3bdcbb22e73dbc50ba244408e48fa288c519df70
SHA256

fdf4b173824222e963fd6530874d13b8d4b3eb161afdc51a6a858fd4c1a3575b
SHA512

3fd365da6287323d8c09261caae5d053d3e1839a0503271cf649a70dfaab8684e43ba5a392600e29e2505e36df07f0cd09eb34e44de98588028b6579fbc19df8
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oD9:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3/

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
behavioral3/memory/488-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral3/memory/488-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral3/memory/488-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral3/memory/488-63-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
3020	csrsll.exe
584	csrsll.exe
488	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-1-5-21-1537126222-899333903-2037027349-1000\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 2152 set thread context of 796	2152	fdf4b173824222e963fd6530874d13b8d4b3eb161afdc51a6a858fd4c1a3575bN.exe	77
PID 3020 set thread context of 584	3020	csrsll.exe	84
PID 3020 set thread context of 488	3020	csrsll.exe	85

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral3/memory/2152-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral3/memory/2152-4-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral3/memory/796-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral3/memory/796-10-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral3/memory/796-12-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral3/memory/2152-15-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral3/files/0x001d00000002ab1e-30.dat	upx
behavioral3/memory/796-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral3/memory/3020-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral3/memory/3020-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral3/memory/488-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral3/memory/488-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral3/memory/488-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral3/memory/488-45-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral3/memory/3020-55-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral3/memory/488-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral3/memory/796-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral3/memory/584-62-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral3/memory/488-63-0x0000000000400000-0x0000000000414000-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	fdf4b173824222e963fd6530874d13b8d4b3eb161afdc51a6a858fd4c1a3575bN.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fdf4b173824222e963fd6530874d13b8d4b3eb161afdc51a6a858fd4c1a3575bN.exe

Suspicious use of AdjustPrivilegeToken 59 IoCs

description	pid	Process
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2152	fdf4b173824222e963fd6530874d13b8d4b3eb161afdc51a6a858fd4c1a3575bN.exe
796	fdf4b173824222e963fd6530874d13b8d4b3eb161afdc51a6a858fd4c1a3575bN.exe
3020	csrsll.exe
584	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 2152 wrote to memory of 796	2152	fdf4b173824222e963fd6530874d13b8d4b3eb161afdc51a6a858fd4c1a3575bN.exe	77
PID 2152 wrote to memory of 796	2152	fdf4b173824222e963fd6530874d13b8d4b3eb161afdc51a6a858fd4c1a3575bN.exe	77
PID 2152 wrote to memory of 796	2152	fdf4b173824222e963fd6530874d13b8d4b3eb161afdc51a6a858fd4c1a3575bN.exe	77
PID 2152 wrote to memory of 796	2152	fdf4b173824222e963fd6530874d13b8d4b3eb161afdc51a6a858fd4c1a3575bN.exe	77
PID 2152 wrote to memory of 796	2152	fdf4b173824222e963fd6530874d13b8d4b3eb161afdc51a6a858fd4c1a3575bN.exe	77
PID 2152 wrote to memory of 796	2152	fdf4b173824222e963fd6530874d13b8d4b3eb161afdc51a6a858fd4c1a3575bN.exe	77
PID 2152 wrote to memory of 796	2152	fdf4b173824222e963fd6530874d13b8d4b3eb161afdc51a6a858fd4c1a3575bN.exe	77
PID 2152 wrote to memory of 796	2152	fdf4b173824222e963fd6530874d13b8d4b3eb161afdc51a6a858fd4c1a3575bN.exe	77
PID 796 wrote to memory of 3260	796	fdf4b173824222e963fd6530874d13b8d4b3eb161afdc51a6a858fd4c1a3575bN.exe	78
PID 796 wrote to memory of 3260	796	fdf4b173824222e963fd6530874d13b8d4b3eb161afdc51a6a858fd4c1a3575bN.exe	78
PID 796 wrote to memory of 3260	796	fdf4b173824222e963fd6530874d13b8d4b3eb161afdc51a6a858fd4c1a3575bN.exe	78
PID 3260 wrote to memory of 2896	3260	cmd.exe	82
PID 3260 wrote to memory of 2896	3260	cmd.exe	82
PID 3260 wrote to memory of 2896	3260	cmd.exe	82
PID 796 wrote to memory of 3020	796	fdf4b173824222e963fd6530874d13b8d4b3eb161afdc51a6a858fd4c1a3575bN.exe	83
PID 796 wrote to memory of 3020	796	fdf4b173824222e963fd6530874d13b8d4b3eb161afdc51a6a858fd4c1a3575bN.exe	83
PID 796 wrote to memory of 3020	796	fdf4b173824222e963fd6530874d13b8d4b3eb161afdc51a6a858fd4c1a3575bN.exe	83
PID 3020 wrote to memory of 584	3020	csrsll.exe	84
PID 3020 wrote to memory of 584	3020	csrsll.exe	84
PID 3020 wrote to memory of 584	3020	csrsll.exe	84
PID 3020 wrote to memory of 584	3020	csrsll.exe	84
PID 3020 wrote to memory of 584	3020	csrsll.exe	84
PID 3020 wrote to memory of 584	3020	csrsll.exe	84
PID 3020 wrote to memory of 584	3020	csrsll.exe	84
PID 3020 wrote to memory of 584	3020	csrsll.exe	84
PID 3020 wrote to memory of 488	3020	csrsll.exe	85
PID 3020 wrote to memory of 488	3020	csrsll.exe	85
PID 3020 wrote to memory of 488	3020	csrsll.exe	85
PID 3020 wrote to memory of 488	3020	csrsll.exe	85
PID 3020 wrote to memory of 488	3020	csrsll.exe	85
PID 3020 wrote to memory of 488	3020	csrsll.exe	85
PID 3020 wrote to memory of 488	3020	csrsll.exe	85
PID 3020 wrote to memory of 488	3020	csrsll.exe	85

C:\Users\Admin\AppData\Local\Temp\fdf4b173824222e963fd6530874d13b8d4b3eb161afdc51a6a858fd4c1a3575bN.exe
"C:\Users\Admin\AppData\Local\Temp\fdf4b173824222e963fd6530874d13b8d4b3eb161afdc51a6a858fd4c1a3575bN.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2152
- C:\Users\Admin\AppData\Local\Temp\fdf4b173824222e963fd6530874d13b8d4b3eb161afdc51a6a858fd4c1a3575bN.exe
  "C:\Users\Admin\AppData\Local\Temp\fdf4b173824222e963fd6530874d13b8d4b3eb161afdc51a6a858fd4c1a3575bN.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:796
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\LIIUQ.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3260
  - - 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:2896
- - 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:3020
  - - 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:584
  - - 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:488

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\LIIUQ.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
69da3ed0afcbbf04cb40856f09908e02

SHA1
6ecb2d9548685610ada1960d469d112f7cdf08e2

SHA256
38116b7194796120acdd8e86e8f4d5dfbe126d71866e59d6858bc369a1cfe46e

SHA512
d22dc789e64dc37be940a3f227fb1aedcbb711c111a6da088ee89f2c76ec1585fea4fba387d807049c62b2e1919c72fc3f0f8c85fccc931e8aa4fbea2fae7db6

Download Submit
memory/488-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/488-63-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/488-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/488-45-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/488-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/488-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/584-62-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/796-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/796-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/796-12-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/796-10-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/796-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2152-3-0x00000000022B0000-0x00000000022B2000-memory.dmp

Filesize
8KB

Download
memory/2152-4-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2152-6-0x00000000022F0000-0x00000000022F2000-memory.dmp

Filesize
8KB

Download
memory/2152-15-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2152-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2152-5-0x00000000022D0000-0x00000000022D2000-memory.dmp

Filesize
8KB

Download
memory/3020-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3020-55-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3020-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads