modiloader | 98671db0d60b5c1cf75918f401e6dde02b4a70d2beca5d748f14598e0bd99c64

Analysis

max time kernel
120s
max time network
118s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
18-12-2024 11:53

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General

Target

98671db0d60b5c1cf75918f401e6dde02b4a70d2beca5d748f14598e0bd99c64N.exe
Size

90KB
MD5

4a93d828f1ab0dc290dca7e2fb5795d0
SHA1

8d1bd90aac419fe4d221bb56987d7a2cab5f65a1
SHA256

98671db0d60b5c1cf75918f401e6dde02b4a70d2beca5d748f14598e0bd99c64
SHA512

6808f009e884a9a8a0c783d851ab206df5bc12f31db711e65341b8d17511bedaaf63cadc94f4d113b0e61c55021963319fcca33c72053613d65e2a1295d47887
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDT:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3d

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 2 IoCs

resource	yara_rule
behavioral1/memory/1260-252-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral1/memory/1260-262-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
2172	csrsll.exe
2508	csrsll.exe
1260	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
2316	98671db0d60b5c1cf75918f401e6dde02b4a70d2beca5d748f14598e0bd99c64N.exe
2316	98671db0d60b5c1cf75918f401e6dde02b4a70d2beca5d748f14598e0bd99c64N.exe
2316	98671db0d60b5c1cf75918f401e6dde02b4a70d2beca5d748f14598e0bd99c64N.exe
2316	98671db0d60b5c1cf75918f401e6dde02b4a70d2beca5d748f14598e0bd99c64N.exe
2316	98671db0d60b5c1cf75918f401e6dde02b4a70d2beca5d748f14598e0bd99c64N.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-1-5-21-3533259084-2542256011-65585152-1000\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 1992 set thread context of 2316	1992	98671db0d60b5c1cf75918f401e6dde02b4a70d2beca5d748f14598e0bd99c64N.exe	30
PID 2172 set thread context of 2508	2172	csrsll.exe	35
PID 2172 set thread context of 1260	2172	csrsll.exe	36

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1992-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1992-26-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1992-89-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2316-94-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2316-92-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2316-99-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2316-104-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2316-106-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2316-103-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1992-102-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/files/0x000b00000001225c-131.dat	upx
behavioral1/memory/2172-149-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2316-152-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2172-213-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1260-252-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/2316-258-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2172-255-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2508-259-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1260-262-0x0000000000400000-0x0000000000414000-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	98671db0d60b5c1cf75918f401e6dde02b4a70d2beca5d748f14598e0bd99c64N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	98671db0d60b5c1cf75918f401e6dde02b4a70d2beca5d748f14598e0bd99c64N.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2508	csrsll.exe
Token: SeDebugPrivilege	2508	csrsll.exe
Token: SeDebugPrivilege	2508	csrsll.exe
Token: SeDebugPrivilege	2508	csrsll.exe
Token: SeDebugPrivilege	2508	csrsll.exe
Token: SeDebugPrivilege	2508	csrsll.exe
Token: SeDebugPrivilege	2508	csrsll.exe
Token: SeDebugPrivilege	2508	csrsll.exe
Token: SeDebugPrivilege	2508	csrsll.exe
Token: SeDebugPrivilege	2508	csrsll.exe
Token: SeDebugPrivilege	2508	csrsll.exe
Token: SeDebugPrivilege	2508	csrsll.exe
Token: SeDebugPrivilege	2508	csrsll.exe
Token: SeDebugPrivilege	2508	csrsll.exe
Token: SeDebugPrivilege	2508	csrsll.exe
Token: SeDebugPrivilege	2508	csrsll.exe
Token: SeDebugPrivilege	2508	csrsll.exe
Token: SeDebugPrivilege	2508	csrsll.exe
Token: SeDebugPrivilege	2508	csrsll.exe
Token: SeDebugPrivilege	2508	csrsll.exe
Token: SeDebugPrivilege	2508	csrsll.exe
Token: SeDebugPrivilege	2508	csrsll.exe
Token: SeDebugPrivilege	2508	csrsll.exe
Token: SeDebugPrivilege	2508	csrsll.exe
Token: SeDebugPrivilege	2508	csrsll.exe
Token: SeDebugPrivilege	2508	csrsll.exe
Token: SeDebugPrivilege	2508	csrsll.exe
Token: SeDebugPrivilege	2508	csrsll.exe
Token: SeDebugPrivilege	2508	csrsll.exe
Token: SeDebugPrivilege	2508	csrsll.exe
Token: SeDebugPrivilege	2508	csrsll.exe
Token: SeDebugPrivilege	2508	csrsll.exe
Token: SeDebugPrivilege	2508	csrsll.exe
Token: SeDebugPrivilege	2508	csrsll.exe
Token: SeDebugPrivilege	2508	csrsll.exe
Token: SeDebugPrivilege	2508	csrsll.exe
Token: SeDebugPrivilege	2508	csrsll.exe
Token: SeDebugPrivilege	2508	csrsll.exe
Token: SeDebugPrivilege	2508	csrsll.exe
Token: SeDebugPrivilege	2508	csrsll.exe
Token: SeDebugPrivilege	2508	csrsll.exe
Token: SeDebugPrivilege	2508	csrsll.exe
Token: SeDebugPrivilege	2508	csrsll.exe
Token: SeDebugPrivilege	2508	csrsll.exe
Token: SeDebugPrivilege	2508	csrsll.exe
Token: SeDebugPrivilege	2508	csrsll.exe
Token: SeDebugPrivilege	2508	csrsll.exe
Token: SeDebugPrivilege	2508	csrsll.exe
Token: SeDebugPrivilege	2508	csrsll.exe
Token: SeDebugPrivilege	2508	csrsll.exe
Token: SeDebugPrivilege	2508	csrsll.exe
Token: SeDebugPrivilege	2508	csrsll.exe
Token: SeDebugPrivilege	2508	csrsll.exe
Token: SeDebugPrivilege	2508	csrsll.exe
Token: SeDebugPrivilege	2508	csrsll.exe
Token: SeDebugPrivilege	2508	csrsll.exe
Token: SeDebugPrivilege	2508	csrsll.exe
Token: SeDebugPrivilege	2508	csrsll.exe
Token: SeDebugPrivilege	2508	csrsll.exe
Token: SeDebugPrivilege	2508	csrsll.exe
Token: SeDebugPrivilege	2508	csrsll.exe
Token: SeDebugPrivilege	2508	csrsll.exe
Token: SeDebugPrivilege	2508	csrsll.exe
Token: SeDebugPrivilege	2508	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1992	98671db0d60b5c1cf75918f401e6dde02b4a70d2beca5d748f14598e0bd99c64N.exe
2316	98671db0d60b5c1cf75918f401e6dde02b4a70d2beca5d748f14598e0bd99c64N.exe
2172	csrsll.exe
2508	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 1992 wrote to memory of 2316	1992	98671db0d60b5c1cf75918f401e6dde02b4a70d2beca5d748f14598e0bd99c64N.exe	30
PID 1992 wrote to memory of 2316	1992	98671db0d60b5c1cf75918f401e6dde02b4a70d2beca5d748f14598e0bd99c64N.exe	30
PID 1992 wrote to memory of 2316	1992	98671db0d60b5c1cf75918f401e6dde02b4a70d2beca5d748f14598e0bd99c64N.exe	30
PID 1992 wrote to memory of 2316	1992	98671db0d60b5c1cf75918f401e6dde02b4a70d2beca5d748f14598e0bd99c64N.exe	30
PID 1992 wrote to memory of 2316	1992	98671db0d60b5c1cf75918f401e6dde02b4a70d2beca5d748f14598e0bd99c64N.exe	30
PID 1992 wrote to memory of 2316	1992	98671db0d60b5c1cf75918f401e6dde02b4a70d2beca5d748f14598e0bd99c64N.exe	30
PID 1992 wrote to memory of 2316	1992	98671db0d60b5c1cf75918f401e6dde02b4a70d2beca5d748f14598e0bd99c64N.exe	30
PID 1992 wrote to memory of 2316	1992	98671db0d60b5c1cf75918f401e6dde02b4a70d2beca5d748f14598e0bd99c64N.exe	30
PID 2316 wrote to memory of 2872	2316	98671db0d60b5c1cf75918f401e6dde02b4a70d2beca5d748f14598e0bd99c64N.exe	31
PID 2316 wrote to memory of 2872	2316	98671db0d60b5c1cf75918f401e6dde02b4a70d2beca5d748f14598e0bd99c64N.exe	31
PID 2316 wrote to memory of 2872	2316	98671db0d60b5c1cf75918f401e6dde02b4a70d2beca5d748f14598e0bd99c64N.exe	31
PID 2316 wrote to memory of 2872	2316	98671db0d60b5c1cf75918f401e6dde02b4a70d2beca5d748f14598e0bd99c64N.exe	31
PID 2872 wrote to memory of 2992	2872	cmd.exe	33
PID 2872 wrote to memory of 2992	2872	cmd.exe	33
PID 2872 wrote to memory of 2992	2872	cmd.exe	33
PID 2872 wrote to memory of 2992	2872	cmd.exe	33
PID 2316 wrote to memory of 2172	2316	98671db0d60b5c1cf75918f401e6dde02b4a70d2beca5d748f14598e0bd99c64N.exe	34
PID 2316 wrote to memory of 2172	2316	98671db0d60b5c1cf75918f401e6dde02b4a70d2beca5d748f14598e0bd99c64N.exe	34
PID 2316 wrote to memory of 2172	2316	98671db0d60b5c1cf75918f401e6dde02b4a70d2beca5d748f14598e0bd99c64N.exe	34
PID 2316 wrote to memory of 2172	2316	98671db0d60b5c1cf75918f401e6dde02b4a70d2beca5d748f14598e0bd99c64N.exe	34
PID 2172 wrote to memory of 2508	2172	csrsll.exe	35
PID 2172 wrote to memory of 2508	2172	csrsll.exe	35
PID 2172 wrote to memory of 2508	2172	csrsll.exe	35
PID 2172 wrote to memory of 2508	2172	csrsll.exe	35
PID 2172 wrote to memory of 2508	2172	csrsll.exe	35
PID 2172 wrote to memory of 2508	2172	csrsll.exe	35
PID 2172 wrote to memory of 2508	2172	csrsll.exe	35
PID 2172 wrote to memory of 2508	2172	csrsll.exe	35
PID 2172 wrote to memory of 1260	2172	csrsll.exe	36
PID 2172 wrote to memory of 1260	2172	csrsll.exe	36
PID 2172 wrote to memory of 1260	2172	csrsll.exe	36
PID 2172 wrote to memory of 1260	2172	csrsll.exe	36
PID 2172 wrote to memory of 1260	2172	csrsll.exe	36
PID 2172 wrote to memory of 1260	2172	csrsll.exe	36
PID 2172 wrote to memory of 1260	2172	csrsll.exe	36
PID 2172 wrote to memory of 1260	2172	csrsll.exe	36

C:\Users\Admin\AppData\Local\Temp\98671db0d60b5c1cf75918f401e6dde02b4a70d2beca5d748f14598e0bd99c64N.exe
"C:\Users\Admin\AppData\Local\Temp\98671db0d60b5c1cf75918f401e6dde02b4a70d2beca5d748f14598e0bd99c64N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1992
- C:\Users\Admin\AppData\Local\Temp\98671db0d60b5c1cf75918f401e6dde02b4a70d2beca5d748f14598e0bd99c64N.exe
  "C:\Users\Admin\AppData\Local\Temp\98671db0d60b5c1cf75918f401e6dde02b4a70d2beca5d748f14598e0bd99c64N.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2316
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\SECGB.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2872
  - - 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:2992
- - 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:2172
  - - 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:2508
  - - 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:1260

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\SECGB.bat

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
c4ebc5db8a9afe5f9bb9cc8182debb15

SHA1
3634ddfae7da532602e214599a69ea1d48a396dd

SHA256
0e08177c111a23709a609dc3a2358c1dc5acdae7efd7305282d3b5f59b7187e6

SHA512
307f8043ceca68530a5dc1fcf0014b14817c47aba21580c5cc0b336d3bb1c7fae91739357b46d15e80883a08ae19282dc4bec4fa078e896bd55c493e81ed8b64

Download Submit
memory/1260-262-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1260-252-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1992-29-0x00000000002A0000-0x00000000002A1000-memory.dmp

Filesize
4KB

Download
memory/1992-96-0x0000000002750000-0x00000000027A3000-memory.dmp

Filesize
332KB

Download
memory/1992-61-0x0000000002570000-0x0000000002571000-memory.dmp

Filesize
4KB

Download
memory/1992-41-0x00000000003C0000-0x00000000003C1000-memory.dmp

Filesize
4KB

Download
memory/1992-102-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1992-89-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1992-79-0x00000000025B0000-0x00000000025B2000-memory.dmp

Filesize
8KB

Download
memory/1992-26-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1992-71-0x0000000002590000-0x0000000002591000-memory.dmp

Filesize
4KB

Download
memory/1992-15-0x0000000000280000-0x0000000000281000-memory.dmp

Filesize
4KB

Download
memory/1992-18-0x0000000000404000-0x0000000000405000-memory.dmp

Filesize
4KB

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

Filesize
332KB

Download
memory/1992-5-0x0000000000250000-0x0000000000251000-memory.dmp

Filesize
4KB

Download
memory/1992-3-0x0000000000250000-0x0000000000251000-memory.dmp

Filesize
4KB

Download
memory/2172-213-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2172-155-0x00000000002B0000-0x00000000002B1000-memory.dmp

Filesize
4KB

Download
memory/2172-255-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2172-165-0x00000000002E0000-0x00000000002E1000-memory.dmp

Filesize
4KB

Download
memory/2172-176-0x0000000000300000-0x0000000000301000-memory.dmp

Filesize
4KB

Download
memory/2172-149-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2316-99-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2316-146-0x0000000003450000-0x00000000034A3000-memory.dmp

Filesize
332KB

Download
memory/2316-104-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2316-240-0x0000000003450000-0x00000000034A3000-memory.dmp

Filesize
332KB

Download
memory/2316-152-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2316-106-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2316-90-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2316-210-0x0000000003440000-0x0000000003493000-memory.dmp

Filesize
332KB

Download
memory/2316-94-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2316-147-0x0000000003440000-0x0000000003493000-memory.dmp

Filesize
332KB

Download
memory/2316-145-0x0000000003450000-0x00000000034A3000-memory.dmp

Filesize
332KB

Download
memory/2316-92-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2316-251-0x0000000003440000-0x0000000003493000-memory.dmp

Filesize
332KB

Download
memory/2316-258-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2316-103-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2316-242-0x0000000003450000-0x00000000034A3000-memory.dmp

Filesize
332KB

Download
memory/2316-97-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2508-259-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads