modiloader | 9a9522129b05bfac13c283dd8858887d02c9b5a14a0dd14b68e539b4940760ee

Analysis

max time kernel
16s
max time network
118s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
03-12-2024 09:51

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General

Target

9a9522129b05bfac13c283dd8858887d02c9b5a14a0dd14b68e539b4940760eeN.exe
Size

90KB
MD5

901fce7258311d6a68a1821eb03f3030
SHA1

61dc71e4a5ca37f59bf5f3c45b78b1727e095fe2
SHA256

9a9522129b05bfac13c283dd8858887d02c9b5a14a0dd14b68e539b4940760ee
SHA512

9d0864495eeabbae43bced3f727b30225822840a77b43946524cfd83dc96f0a5e870566a0bef416056ccd16cfd608adad5323557e4c3846ee31068db7115cbbf
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 family
modiloader

ModiLoader Second Stage 1 IoCs

resource	yara_rule
behavioral1/memory/844-266-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 2 IoCs

pid	Process
2316	csrsll.exe
2312	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
2540	9a9522129b05bfac13c283dd8858887d02c9b5a14a0dd14b68e539b4940760eeN.exe
2540	9a9522129b05bfac13c283dd8858887d02c9b5a14a0dd14b68e539b4940760eeN.exe
2540	9a9522129b05bfac13c283dd8858887d02c9b5a14a0dd14b68e539b4940760eeN.exe
2540	9a9522129b05bfac13c283dd8858887d02c9b5a14a0dd14b68e539b4940760eeN.exe
2540	9a9522129b05bfac13c283dd8858887d02c9b5a14a0dd14b68e539b4940760eeN.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-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\Run\Win Pdf = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\csrsll.exe"	reg.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1864 set thread context of 2540	1864	9a9522129b05bfac13c283dd8858887d02c9b5a14a0dd14b68e539b4940760eeN.exe	31
PID 2316 set thread context of 2312	2316	csrsll.exe	36

UPX packed file 24 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1864-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1864-92-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1864-110-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2540-108-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2540-107-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2540-111-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2540-105-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1864-103-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2540-101-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2540-97-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2540-95-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1864-83-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1864-82-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1864-79-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1864-26-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/files/0x00080000000191df-139.dat	upx
behavioral1/memory/2540-138-0x0000000003320000-0x0000000003373000-memory.dmp	upx
behavioral1/memory/2540-157-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2540-260-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2316-256-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/844-254-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/2316-234-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2312-263-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/844-266-0x0000000000400000-0x0000000000414000-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 6 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	9a9522129b05bfac13c283dd8858887d02c9b5a14a0dd14b68e539b4940760eeN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	9a9522129b05bfac13c283dd8858887d02c9b5a14a0dd14b68e539b4940760eeN.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

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
1864	9a9522129b05bfac13c283dd8858887d02c9b5a14a0dd14b68e539b4940760eeN.exe
2540	9a9522129b05bfac13c283dd8858887d02c9b5a14a0dd14b68e539b4940760eeN.exe
2316	csrsll.exe

Suspicious use of WriteProcessMemory 35 IoCs

description	pid	Process	procid_target
PID 1864 wrote to memory of 2540	1864	9a9522129b05bfac13c283dd8858887d02c9b5a14a0dd14b68e539b4940760eeN.exe	31
PID 1864 wrote to memory of 2540	1864	9a9522129b05bfac13c283dd8858887d02c9b5a14a0dd14b68e539b4940760eeN.exe	31
PID 1864 wrote to memory of 2540	1864	9a9522129b05bfac13c283dd8858887d02c9b5a14a0dd14b68e539b4940760eeN.exe	31
PID 1864 wrote to memory of 2540	1864	9a9522129b05bfac13c283dd8858887d02c9b5a14a0dd14b68e539b4940760eeN.exe	31
PID 1864 wrote to memory of 2540	1864	9a9522129b05bfac13c283dd8858887d02c9b5a14a0dd14b68e539b4940760eeN.exe	31
PID 1864 wrote to memory of 2540	1864	9a9522129b05bfac13c283dd8858887d02c9b5a14a0dd14b68e539b4940760eeN.exe	31
PID 1864 wrote to memory of 2540	1864	9a9522129b05bfac13c283dd8858887d02c9b5a14a0dd14b68e539b4940760eeN.exe	31
PID 1864 wrote to memory of 2540	1864	9a9522129b05bfac13c283dd8858887d02c9b5a14a0dd14b68e539b4940760eeN.exe	31
PID 2540 wrote to memory of 1388	2540	9a9522129b05bfac13c283dd8858887d02c9b5a14a0dd14b68e539b4940760eeN.exe	32
PID 2540 wrote to memory of 1388	2540	9a9522129b05bfac13c283dd8858887d02c9b5a14a0dd14b68e539b4940760eeN.exe	32
PID 2540 wrote to memory of 1388	2540	9a9522129b05bfac13c283dd8858887d02c9b5a14a0dd14b68e539b4940760eeN.exe	32
PID 2540 wrote to memory of 1388	2540	9a9522129b05bfac13c283dd8858887d02c9b5a14a0dd14b68e539b4940760eeN.exe	32
PID 1388 wrote to memory of 316	1388	cmd.exe	34
PID 1388 wrote to memory of 316	1388	cmd.exe	34
PID 1388 wrote to memory of 316	1388	cmd.exe	34
PID 1388 wrote to memory of 316	1388	cmd.exe	34
PID 2540 wrote to memory of 2316	2540	9a9522129b05bfac13c283dd8858887d02c9b5a14a0dd14b68e539b4940760eeN.exe	35
PID 2540 wrote to memory of 2316	2540	9a9522129b05bfac13c283dd8858887d02c9b5a14a0dd14b68e539b4940760eeN.exe	35
PID 2540 wrote to memory of 2316	2540	9a9522129b05bfac13c283dd8858887d02c9b5a14a0dd14b68e539b4940760eeN.exe	35
PID 2540 wrote to memory of 2316	2540	9a9522129b05bfac13c283dd8858887d02c9b5a14a0dd14b68e539b4940760eeN.exe	35
PID 2316 wrote to memory of 2312	2316	csrsll.exe	36
PID 2316 wrote to memory of 2312	2316	csrsll.exe	36
PID 2316 wrote to memory of 2312	2316	csrsll.exe	36
PID 2316 wrote to memory of 2312	2316	csrsll.exe	36
PID 2316 wrote to memory of 2312	2316	csrsll.exe	36
PID 2316 wrote to memory of 2312	2316	csrsll.exe	36
PID 2316 wrote to memory of 2312	2316	csrsll.exe	36
PID 2316 wrote to memory of 2312	2316	csrsll.exe	36
PID 2316 wrote to memory of 844	2316	csrsll.exe	37
PID 2316 wrote to memory of 844	2316	csrsll.exe	37
PID 2316 wrote to memory of 844	2316	csrsll.exe	37
PID 2316 wrote to memory of 844	2316	csrsll.exe	37
PID 2316 wrote to memory of 844	2316	csrsll.exe	37
PID 2316 wrote to memory of 844	2316	csrsll.exe	37
PID 2316 wrote to memory of 844	2316	csrsll.exe	37

C:\Users\Admin\AppData\Local\Temp\9a9522129b05bfac13c283dd8858887d02c9b5a14a0dd14b68e539b4940760eeN.exe
"C:\Users\Admin\AppData\Local\Temp\9a9522129b05bfac13c283dd8858887d02c9b5a14a0dd14b68e539b4940760eeN.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1864
- C:\Users\Admin\AppData\Local\Temp\9a9522129b05bfac13c283dd8858887d02c9b5a14a0dd14b68e539b4940760eeN.exe
  "C:\Users\Admin\AppData\Local\Temp\9a9522129b05bfac13c283dd8858887d02c9b5a14a0dd14b68e539b4940760eeN.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2540
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\OFEOM.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1388
  - - 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:316
- - 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:2316
  - - 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:2312
  - - C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
      4⤵
      PID:844

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\OFEOM.bat

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
e1f0cbaa66370222582ad36133de7a4c

SHA1
2107b8d04034738140b654fe46d095728edf919c

SHA256
951d715c1928a3cf01b3d909caabc4c7f0baab6ec7c96247e2adb863c216c45a

SHA512
86695178d8e936886a18a35c7accaaa3dfc1ab298266602eb6c84052de4da8f43913dd955bde2adda96fc27391d5da2a54f91fa91cf57cc9449e10a98df137e5

Download Submit
memory/844-266-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/844-254-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1864-79-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1864-61-0x0000000000530000-0x0000000000531000-memory.dmp

Filesize
4KB

Download
memory/1864-3-0x00000000001C0000-0x00000000001C1000-memory.dmp

Filesize
4KB

Download
memory/1864-15-0x0000000000260000-0x0000000000261000-memory.dmp

Filesize
4KB

Download
memory/1864-104-0x0000000002750000-0x00000000027A3000-memory.dmp

Filesize
332KB

Download
memory/1864-103-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1864-18-0x0000000000404000-0x0000000000405000-memory.dmp

Filesize
4KB

Download
memory/1864-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1864-110-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1864-26-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1864-92-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1864-83-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1864-82-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1864-80-0x0000000000570000-0x0000000000572000-memory.dmp

Filesize
8KB

Download
memory/1864-5-0x00000000001C0000-0x00000000001C1000-memory.dmp

Filesize
4KB

Download
memory/1864-71-0x0000000000550000-0x0000000000551000-memory.dmp

Filesize
4KB

Download
memory/1864-29-0x0000000000280000-0x0000000000281000-memory.dmp

Filesize
4KB

Download
memory/1864-41-0x00000000004B0000-0x00000000004B1000-memory.dmp

Filesize
4KB

Download
memory/2312-263-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2316-256-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2316-234-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2316-170-0x00000000003D0000-0x00000000003D1000-memory.dmp

Filesize
4KB

Download
memory/2316-160-0x00000000003B0000-0x00000000003B1000-memory.dmp

Filesize
4KB

Download
memory/2540-99-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2540-153-0x0000000003320000-0x0000000003373000-memory.dmp

Filesize
332KB

Download
memory/2540-152-0x0000000003320000-0x0000000003373000-memory.dmp

Filesize
332KB

Download
memory/2540-151-0x0000000003320000-0x0000000003373000-memory.dmp

Filesize
332KB

Download
memory/2540-138-0x0000000003320000-0x0000000003373000-memory.dmp

Filesize
332KB

Download
memory/2540-93-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2540-157-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2540-260-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2540-95-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2540-97-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2540-223-0x0000000003320000-0x0000000003373000-memory.dmp

Filesize
332KB

Download
memory/2540-218-0x0000000003320000-0x0000000003373000-memory.dmp

Filesize
332KB

Download
memory/2540-215-0x0000000003320000-0x0000000003373000-memory.dmp

Filesize
332KB

Download
memory/2540-101-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2540-105-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2540-111-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2540-107-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2540-108-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads