modiloader | 8accd4747d37840aa64cf2fa71630e46c476a41891b248a18730d96a156e0e1b

Analysis

max time kernel
120s
max time network
114s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
19-12-2024 01:39

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General

Target

8accd4747d37840aa64cf2fa71630e46c476a41891b248a18730d96a156e0e1b.exe
Size

90KB
MD5

20e7a4ddfcde01266f9628329db255c7
SHA1

479fcfe84a874104dbc408724b9fc04df879ac76
SHA256

8accd4747d37840aa64cf2fa71630e46c476a41891b248a18730d96a156e0e1b
SHA512

adc1dafe207293d6bdafe44a49b9706cdf6e181d3884b41a0403168c47073e39e78a6d5396627866b9182b830b40de87f5aea39b25fd99c8d23c6f1c720fa770
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDo:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3O

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/1968-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1968-57-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1968-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1968-64-0x0000000000400000-0x0000000000414000-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-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	8accd4747d37840aa64cf2fa71630e46c476a41891b248a18730d96a156e0e1b.exe

Executes dropped EXE 3 IoCs

pid	Process
3100	csrsll.exe
808	csrsll.exe
1968	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-1-5-21-1045960512-3948844814-3059691613-1000\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 3504 set thread context of 2540	3504	8accd4747d37840aa64cf2fa71630e46c476a41891b248a18730d96a156e0e1b.exe	85
PID 3100 set thread context of 808	3100	csrsll.exe	97
PID 3100 set thread context of 1968	3100	csrsll.exe	98

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3504-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3504-4-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2540-8-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2540-10-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2540-12-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3504-15-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x0008000000023c97-30.dat	upx
behavioral2/memory/3100-37-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2540-41-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3100-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3100-43-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1968-47-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1968-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1968-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1968-57-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3100-59-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1968-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2540-62-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/808-63-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1968-64-0x0000000000400000-0x0000000000414000-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	8accd4747d37840aa64cf2fa71630e46c476a41891b248a18730d96a156e0e1b.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	8accd4747d37840aa64cf2fa71630e46c476a41891b248a18730d96a156e0e1b.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	808	csrsll.exe
Token: SeDebugPrivilege	808	csrsll.exe
Token: SeDebugPrivilege	808	csrsll.exe
Token: SeDebugPrivilege	808	csrsll.exe
Token: SeDebugPrivilege	808	csrsll.exe
Token: SeDebugPrivilege	808	csrsll.exe
Token: SeDebugPrivilege	808	csrsll.exe
Token: SeDebugPrivilege	808	csrsll.exe
Token: SeDebugPrivilege	808	csrsll.exe
Token: SeDebugPrivilege	808	csrsll.exe
Token: SeDebugPrivilege	808	csrsll.exe
Token: SeDebugPrivilege	808	csrsll.exe
Token: SeDebugPrivilege	808	csrsll.exe
Token: SeDebugPrivilege	808	csrsll.exe
Token: SeDebugPrivilege	808	csrsll.exe
Token: SeDebugPrivilege	808	csrsll.exe
Token: SeDebugPrivilege	808	csrsll.exe
Token: SeDebugPrivilege	808	csrsll.exe
Token: SeDebugPrivilege	808	csrsll.exe
Token: SeDebugPrivilege	808	csrsll.exe
Token: SeDebugPrivilege	808	csrsll.exe
Token: SeDebugPrivilege	808	csrsll.exe
Token: SeDebugPrivilege	808	csrsll.exe
Token: SeDebugPrivilege	808	csrsll.exe
Token: SeDebugPrivilege	808	csrsll.exe
Token: SeDebugPrivilege	808	csrsll.exe
Token: SeDebugPrivilege	808	csrsll.exe
Token: SeDebugPrivilege	808	csrsll.exe
Token: SeDebugPrivilege	808	csrsll.exe
Token: SeDebugPrivilege	808	csrsll.exe
Token: SeDebugPrivilege	808	csrsll.exe
Token: SeDebugPrivilege	808	csrsll.exe
Token: SeDebugPrivilege	808	csrsll.exe
Token: SeDebugPrivilege	808	csrsll.exe
Token: SeDebugPrivilege	808	csrsll.exe
Token: SeDebugPrivilege	808	csrsll.exe
Token: SeDebugPrivilege	808	csrsll.exe
Token: SeDebugPrivilege	808	csrsll.exe
Token: SeDebugPrivilege	808	csrsll.exe
Token: SeDebugPrivilege	808	csrsll.exe
Token: SeDebugPrivilege	808	csrsll.exe
Token: SeDebugPrivilege	808	csrsll.exe
Token: SeDebugPrivilege	808	csrsll.exe
Token: SeDebugPrivilege	808	csrsll.exe
Token: SeDebugPrivilege	808	csrsll.exe
Token: SeDebugPrivilege	808	csrsll.exe
Token: SeDebugPrivilege	808	csrsll.exe
Token: SeDebugPrivilege	808	csrsll.exe
Token: SeDebugPrivilege	808	csrsll.exe
Token: SeDebugPrivilege	808	csrsll.exe
Token: SeDebugPrivilege	808	csrsll.exe
Token: SeDebugPrivilege	808	csrsll.exe
Token: SeDebugPrivilege	808	csrsll.exe
Token: SeDebugPrivilege	808	csrsll.exe
Token: SeDebugPrivilege	808	csrsll.exe
Token: SeDebugPrivilege	808	csrsll.exe
Token: SeDebugPrivilege	808	csrsll.exe
Token: SeDebugPrivilege	808	csrsll.exe
Token: SeDebugPrivilege	808	csrsll.exe
Token: SeDebugPrivilege	808	csrsll.exe
Token: SeDebugPrivilege	808	csrsll.exe
Token: SeDebugPrivilege	808	csrsll.exe
Token: SeDebugPrivilege	808	csrsll.exe
Token: SeDebugPrivilege	808	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
3504	8accd4747d37840aa64cf2fa71630e46c476a41891b248a18730d96a156e0e1b.exe
2540	8accd4747d37840aa64cf2fa71630e46c476a41891b248a18730d96a156e0e1b.exe
3100	csrsll.exe
808	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 3504 wrote to memory of 2540	3504	8accd4747d37840aa64cf2fa71630e46c476a41891b248a18730d96a156e0e1b.exe	85
PID 3504 wrote to memory of 2540	3504	8accd4747d37840aa64cf2fa71630e46c476a41891b248a18730d96a156e0e1b.exe	85
PID 3504 wrote to memory of 2540	3504	8accd4747d37840aa64cf2fa71630e46c476a41891b248a18730d96a156e0e1b.exe	85
PID 3504 wrote to memory of 2540	3504	8accd4747d37840aa64cf2fa71630e46c476a41891b248a18730d96a156e0e1b.exe	85
PID 3504 wrote to memory of 2540	3504	8accd4747d37840aa64cf2fa71630e46c476a41891b248a18730d96a156e0e1b.exe	85
PID 3504 wrote to memory of 2540	3504	8accd4747d37840aa64cf2fa71630e46c476a41891b248a18730d96a156e0e1b.exe	85
PID 3504 wrote to memory of 2540	3504	8accd4747d37840aa64cf2fa71630e46c476a41891b248a18730d96a156e0e1b.exe	85
PID 3504 wrote to memory of 2540	3504	8accd4747d37840aa64cf2fa71630e46c476a41891b248a18730d96a156e0e1b.exe	85
PID 2540 wrote to memory of 864	2540	8accd4747d37840aa64cf2fa71630e46c476a41891b248a18730d96a156e0e1b.exe	86
PID 2540 wrote to memory of 864	2540	8accd4747d37840aa64cf2fa71630e46c476a41891b248a18730d96a156e0e1b.exe	86
PID 2540 wrote to memory of 864	2540	8accd4747d37840aa64cf2fa71630e46c476a41891b248a18730d96a156e0e1b.exe	86
PID 864 wrote to memory of 3096	864	cmd.exe	90
PID 864 wrote to memory of 3096	864	cmd.exe	90
PID 864 wrote to memory of 3096	864	cmd.exe	90
PID 2540 wrote to memory of 3100	2540	8accd4747d37840aa64cf2fa71630e46c476a41891b248a18730d96a156e0e1b.exe	91
PID 2540 wrote to memory of 3100	2540	8accd4747d37840aa64cf2fa71630e46c476a41891b248a18730d96a156e0e1b.exe	91
PID 2540 wrote to memory of 3100	2540	8accd4747d37840aa64cf2fa71630e46c476a41891b248a18730d96a156e0e1b.exe	91
PID 3100 wrote to memory of 808	3100	csrsll.exe	97
PID 3100 wrote to memory of 808	3100	csrsll.exe	97
PID 3100 wrote to memory of 808	3100	csrsll.exe	97
PID 3100 wrote to memory of 808	3100	csrsll.exe	97
PID 3100 wrote to memory of 808	3100	csrsll.exe	97
PID 3100 wrote to memory of 808	3100	csrsll.exe	97
PID 3100 wrote to memory of 808	3100	csrsll.exe	97
PID 3100 wrote to memory of 808	3100	csrsll.exe	97
PID 3100 wrote to memory of 1968	3100	csrsll.exe	98
PID 3100 wrote to memory of 1968	3100	csrsll.exe	98
PID 3100 wrote to memory of 1968	3100	csrsll.exe	98
PID 3100 wrote to memory of 1968	3100	csrsll.exe	98
PID 3100 wrote to memory of 1968	3100	csrsll.exe	98
PID 3100 wrote to memory of 1968	3100	csrsll.exe	98
PID 3100 wrote to memory of 1968	3100	csrsll.exe	98
PID 3100 wrote to memory of 1968	3100	csrsll.exe	98

C:\Users\Admin\AppData\Local\Temp\8accd4747d37840aa64cf2fa71630e46c476a41891b248a18730d96a156e0e1b.exe
"C:\Users\Admin\AppData\Local\Temp\8accd4747d37840aa64cf2fa71630e46c476a41891b248a18730d96a156e0e1b.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3504
- C:\Users\Admin\AppData\Local\Temp\8accd4747d37840aa64cf2fa71630e46c476a41891b248a18730d96a156e0e1b.exe
  "C:\Users\Admin\AppData\Local\Temp\8accd4747d37840aa64cf2fa71630e46c476a41891b248a18730d96a156e0e1b.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\BMOJH.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:864
  - - 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:3096
- - 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:3100
  - - 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:808
  - - 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:1968

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\BMOJH.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
0a7df6e690232c9a78c42b7b2060b249

SHA1
d6db6e0b91301f5032a7fa9ad4ce3de7efee9137

SHA256
f62456f523cb028733d47bfab1e8ab57e790d4fb847a9f654f42bce37d02c312

SHA512
c3b91d4c32e573747b0832a736634444269f7ca99453ffe02ae36cb340bd0698c09e3321d28b4fac2157a92143ae2df6132b4d43091e12955a8bd7d39888d080

Download Submit
memory/808-63-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1968-64-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1968-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1968-57-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1968-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1968-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1968-47-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2540-10-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2540-12-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2540-62-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2540-41-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2540-60-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/2540-8-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3100-59-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3100-43-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3100-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3100-37-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3504-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3504-4-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3504-15-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3504-5-0x0000000002B70000-0x0000000002B72000-memory.dmp

Filesize
8KB

Download
memory/3504-6-0x0000000002B80000-0x0000000002B82000-memory.dmp

Filesize
8KB

Download
memory/3504-3-0x0000000002B50000-0x0000000002B52000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads