modiloader | cdbe19b818d575304363eda253314465473f9f7b88b44e2ec175a3394bc35c2f

Analysis

max time kernel
119s
max time network
121s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
26-12-2024 09:06

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General

Target

cdbe19b818d575304363eda253314465473f9f7b88b44e2ec175a3394bc35c2fN.exe
Size

90KB
MD5

69d8f158a803c088a5e15750d13df290
SHA1

ebd23ef224ff6d1fdb318e49009ab84e362a9602
SHA256

cdbe19b818d575304363eda253314465473f9f7b88b44e2ec175a3394bc35c2f
SHA512

9c5c545eea3ef4c947a114dd24a85fdbf4643755212b86159bd62c4d6dc3b647c6c2fa8adf8e642ecba24b65edd39bea41cfb8e974df3109cbb14929f803b9fa
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oD9:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE33

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/2128-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2128-51-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2128-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2128-61-0x0000000000400000-0x0000000000414000-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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	cdbe19b818d575304363eda253314465473f9f7b88b44e2ec175a3394bc35c2fN.exe

Executes dropped EXE 3 IoCs

pid	Process
1692	csrsll.exe
2216	csrsll.exe
2128	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-1-5-21-493223053-2004649691-1575712786-1000\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 4844 set thread context of 2540	4844	cdbe19b818d575304363eda253314465473f9f7b88b44e2ec175a3394bc35c2fN.exe	86
PID 1692 set thread context of 2216	1692	csrsll.exe	102
PID 1692 set thread context of 2128	1692	csrsll.exe	103

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4844-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4844-4-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2540-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2540-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2540-11-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4844-14-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x000b000000023b86-29.dat	upx
behavioral2/memory/2540-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1692-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1692-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2128-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2128-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2128-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2128-45-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2128-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1692-57-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2540-59-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2216-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2128-61-0x0000000000400000-0x0000000000414000-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	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	cdbe19b818d575304363eda253314465473f9f7b88b44e2ec175a3394bc35c2fN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cdbe19b818d575304363eda253314465473f9f7b88b44e2ec175a3394bc35c2fN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2216	csrsll.exe
Token: SeDebugPrivilege	2216	csrsll.exe
Token: SeDebugPrivilege	2216	csrsll.exe
Token: SeDebugPrivilege	2216	csrsll.exe
Token: SeDebugPrivilege	2216	csrsll.exe
Token: SeDebugPrivilege	2216	csrsll.exe
Token: SeDebugPrivilege	2216	csrsll.exe
Token: SeDebugPrivilege	2216	csrsll.exe
Token: SeDebugPrivilege	2216	csrsll.exe
Token: SeDebugPrivilege	2216	csrsll.exe
Token: SeDebugPrivilege	2216	csrsll.exe
Token: SeDebugPrivilege	2216	csrsll.exe
Token: SeDebugPrivilege	2216	csrsll.exe
Token: SeDebugPrivilege	2216	csrsll.exe
Token: SeDebugPrivilege	2216	csrsll.exe
Token: SeDebugPrivilege	2216	csrsll.exe
Token: SeDebugPrivilege	2216	csrsll.exe
Token: SeDebugPrivilege	2216	csrsll.exe
Token: SeDebugPrivilege	2216	csrsll.exe
Token: SeDebugPrivilege	2216	csrsll.exe
Token: SeDebugPrivilege	2216	csrsll.exe
Token: SeDebugPrivilege	2216	csrsll.exe
Token: SeDebugPrivilege	2216	csrsll.exe
Token: SeDebugPrivilege	2216	csrsll.exe
Token: SeDebugPrivilege	2216	csrsll.exe
Token: SeDebugPrivilege	2216	csrsll.exe
Token: SeDebugPrivilege	2216	csrsll.exe
Token: SeDebugPrivilege	2216	csrsll.exe
Token: SeDebugPrivilege	2216	csrsll.exe
Token: SeDebugPrivilege	2216	csrsll.exe
Token: SeDebugPrivilege	2216	csrsll.exe
Token: SeDebugPrivilege	2216	csrsll.exe
Token: SeDebugPrivilege	2216	csrsll.exe
Token: SeDebugPrivilege	2216	csrsll.exe
Token: SeDebugPrivilege	2216	csrsll.exe
Token: SeDebugPrivilege	2216	csrsll.exe
Token: SeDebugPrivilege	2216	csrsll.exe
Token: SeDebugPrivilege	2216	csrsll.exe
Token: SeDebugPrivilege	2216	csrsll.exe
Token: SeDebugPrivilege	2216	csrsll.exe
Token: SeDebugPrivilege	2216	csrsll.exe
Token: SeDebugPrivilege	2216	csrsll.exe
Token: SeDebugPrivilege	2216	csrsll.exe
Token: SeDebugPrivilege	2216	csrsll.exe
Token: SeDebugPrivilege	2216	csrsll.exe
Token: SeDebugPrivilege	2216	csrsll.exe
Token: SeDebugPrivilege	2216	csrsll.exe
Token: SeDebugPrivilege	2216	csrsll.exe
Token: SeDebugPrivilege	2216	csrsll.exe
Token: SeDebugPrivilege	2216	csrsll.exe
Token: SeDebugPrivilege	2216	csrsll.exe
Token: SeDebugPrivilege	2216	csrsll.exe
Token: SeDebugPrivilege	2216	csrsll.exe
Token: SeDebugPrivilege	2216	csrsll.exe
Token: SeDebugPrivilege	2216	csrsll.exe
Token: SeDebugPrivilege	2216	csrsll.exe
Token: SeDebugPrivilege	2216	csrsll.exe
Token: SeDebugPrivilege	2216	csrsll.exe
Token: SeDebugPrivilege	2216	csrsll.exe
Token: SeDebugPrivilege	2216	csrsll.exe
Token: SeDebugPrivilege	2216	csrsll.exe
Token: SeDebugPrivilege	2216	csrsll.exe
Token: SeDebugPrivilege	2216	csrsll.exe
Token: SeDebugPrivilege	2216	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
4844	cdbe19b818d575304363eda253314465473f9f7b88b44e2ec175a3394bc35c2fN.exe
2540	cdbe19b818d575304363eda253314465473f9f7b88b44e2ec175a3394bc35c2fN.exe
1692	csrsll.exe
2216	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 4844 wrote to memory of 2540	4844	cdbe19b818d575304363eda253314465473f9f7b88b44e2ec175a3394bc35c2fN.exe	86
PID 4844 wrote to memory of 2540	4844	cdbe19b818d575304363eda253314465473f9f7b88b44e2ec175a3394bc35c2fN.exe	86
PID 4844 wrote to memory of 2540	4844	cdbe19b818d575304363eda253314465473f9f7b88b44e2ec175a3394bc35c2fN.exe	86
PID 4844 wrote to memory of 2540	4844	cdbe19b818d575304363eda253314465473f9f7b88b44e2ec175a3394bc35c2fN.exe	86
PID 4844 wrote to memory of 2540	4844	cdbe19b818d575304363eda253314465473f9f7b88b44e2ec175a3394bc35c2fN.exe	86
PID 4844 wrote to memory of 2540	4844	cdbe19b818d575304363eda253314465473f9f7b88b44e2ec175a3394bc35c2fN.exe	86
PID 4844 wrote to memory of 2540	4844	cdbe19b818d575304363eda253314465473f9f7b88b44e2ec175a3394bc35c2fN.exe	86
PID 4844 wrote to memory of 2540	4844	cdbe19b818d575304363eda253314465473f9f7b88b44e2ec175a3394bc35c2fN.exe	86
PID 2540 wrote to memory of 4772	2540	cdbe19b818d575304363eda253314465473f9f7b88b44e2ec175a3394bc35c2fN.exe	91
PID 2540 wrote to memory of 4772	2540	cdbe19b818d575304363eda253314465473f9f7b88b44e2ec175a3394bc35c2fN.exe	91
PID 2540 wrote to memory of 4772	2540	cdbe19b818d575304363eda253314465473f9f7b88b44e2ec175a3394bc35c2fN.exe	91
PID 4772 wrote to memory of 2384	4772	cmd.exe	95
PID 4772 wrote to memory of 2384	4772	cmd.exe	95
PID 4772 wrote to memory of 2384	4772	cmd.exe	95
PID 2540 wrote to memory of 1692	2540	cdbe19b818d575304363eda253314465473f9f7b88b44e2ec175a3394bc35c2fN.exe	96
PID 2540 wrote to memory of 1692	2540	cdbe19b818d575304363eda253314465473f9f7b88b44e2ec175a3394bc35c2fN.exe	96
PID 2540 wrote to memory of 1692	2540	cdbe19b818d575304363eda253314465473f9f7b88b44e2ec175a3394bc35c2fN.exe	96
PID 1692 wrote to memory of 2216	1692	csrsll.exe	102
PID 1692 wrote to memory of 2216	1692	csrsll.exe	102
PID 1692 wrote to memory of 2216	1692	csrsll.exe	102
PID 1692 wrote to memory of 2216	1692	csrsll.exe	102
PID 1692 wrote to memory of 2216	1692	csrsll.exe	102
PID 1692 wrote to memory of 2216	1692	csrsll.exe	102
PID 1692 wrote to memory of 2216	1692	csrsll.exe	102
PID 1692 wrote to memory of 2216	1692	csrsll.exe	102
PID 1692 wrote to memory of 2128	1692	csrsll.exe	103
PID 1692 wrote to memory of 2128	1692	csrsll.exe	103
PID 1692 wrote to memory of 2128	1692	csrsll.exe	103
PID 1692 wrote to memory of 2128	1692	csrsll.exe	103
PID 1692 wrote to memory of 2128	1692	csrsll.exe	103
PID 1692 wrote to memory of 2128	1692	csrsll.exe	103
PID 1692 wrote to memory of 2128	1692	csrsll.exe	103
PID 1692 wrote to memory of 2128	1692	csrsll.exe	103

C:\Users\Admin\AppData\Local\Temp\cdbe19b818d575304363eda253314465473f9f7b88b44e2ec175a3394bc35c2fN.exe
"C:\Users\Admin\AppData\Local\Temp\cdbe19b818d575304363eda253314465473f9f7b88b44e2ec175a3394bc35c2fN.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4844
- C:\Users\Admin\AppData\Local\Temp\cdbe19b818d575304363eda253314465473f9f7b88b44e2ec175a3394bc35c2fN.exe
  "C:\Users\Admin\AppData\Local\Temp\cdbe19b818d575304363eda253314465473f9f7b88b44e2ec175a3394bc35c2fN.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2540
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\OBNVN.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4772
  - - 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:2384
- - 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:1692
  - - 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:2216
  - - 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:2128

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\OBNVN.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
d6171c2dd0d9d18ce7b39fb16b7462e1

SHA1
59c6dbd624a1d7cbf03a8a4e163ba06098335c7d

SHA256
7c9d7d8c67fda6d1938c97241702d1bae7fc3688db879d7f175cefd215eb672b

SHA512
a6f6de3d44cd50e5f879b0b53306bba3f8e38ddd9408354f103efb648689027b8ae351d347f9e7a998601a3d50a5a770120869ebb1266b99987d8c0c411d504e

Download Submit
memory/1692-57-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1692-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1692-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2128-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2128-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2128-61-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2128-45-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2128-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2128-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2216-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2540-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2540-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2540-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2540-59-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2540-11-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4844-6-0x0000000002200000-0x0000000002202000-memory.dmp

Filesize
8KB

Download
memory/4844-5-0x00000000021F0000-0x00000000021F2000-memory.dmp

Filesize
8KB

Download
memory/4844-4-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4844-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4844-14-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4844-3-0x00000000021D0000-0x00000000021D2000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads