modiloader | 934cf36ec50d6f3d6f1e4a21eabbb06fce4b707fd9361b4dde6d08582da867b0

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
30-09-2024 00:11

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General

Target

934cf36ec50d6f3d6f1e4a21eabbb06fce4b707fd9361b4dde6d08582da867b0.exe
Size

90KB
MD5

d6988d5fce309a9ba4af6b44f4d57fd2
SHA1

5e89d65a912203a6938996e7c7a99333e594506b
SHA256

934cf36ec50d6f3d6f1e4a21eabbb06fce4b707fd9361b4dde6d08582da867b0
SHA512

854565dbc264589e83f4892095047cb48ed8826a0bc82f884d86a1944d8eebf088800687a57664a885d880fde7a9e7d6e7a63a5ded5d6cc9272475c45243c4fe
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 Second Stage 4 IoCs

resource	yara_rule
behavioral2/memory/4660-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4660-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4660-59-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4660-63-0x0000000000400000-0x0000000000414000-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-1-5-21-2412658365-3084825385-3340777666-1000\Control Panel\International\Geo\Nation	934cf36ec50d6f3d6f1e4a21eabbb06fce4b707fd9361b4dde6d08582da867b0.exe

Executes dropped EXE 3 IoCs

pid	Process
1456	csrsll.exe
2884	csrsll.exe
4660	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-1-5-21-2412658365-3084825385-3340777666-1000\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 4000 set thread context of 2904	4000	934cf36ec50d6f3d6f1e4a21eabbb06fce4b707fd9361b4dde6d08582da867b0.exe	82
PID 1456 set thread context of 2884	1456	csrsll.exe	93
PID 1456 set thread context of 4660	1456	csrsll.exe	94

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4000-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4000-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2904-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2904-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2904-11-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4000-13-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x000800000002343e-29.dat	upx
behavioral2/memory/1456-36-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2904-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1456-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1456-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4660-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4660-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4660-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1456-52-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4660-59-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4660-46-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2904-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2884-62-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4660-63-0x0000000000400000-0x0000000000414000-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	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	934cf36ec50d6f3d6f1e4a21eabbb06fce4b707fd9361b4dde6d08582da867b0.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	934cf36ec50d6f3d6f1e4a21eabbb06fce4b707fd9361b4dde6d08582da867b0.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe
Token: SeDebugPrivilege	2884	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
4000	934cf36ec50d6f3d6f1e4a21eabbb06fce4b707fd9361b4dde6d08582da867b0.exe
2904	934cf36ec50d6f3d6f1e4a21eabbb06fce4b707fd9361b4dde6d08582da867b0.exe
1456	csrsll.exe
2884	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 4000 wrote to memory of 2904	4000	934cf36ec50d6f3d6f1e4a21eabbb06fce4b707fd9361b4dde6d08582da867b0.exe	82
PID 4000 wrote to memory of 2904	4000	934cf36ec50d6f3d6f1e4a21eabbb06fce4b707fd9361b4dde6d08582da867b0.exe	82
PID 4000 wrote to memory of 2904	4000	934cf36ec50d6f3d6f1e4a21eabbb06fce4b707fd9361b4dde6d08582da867b0.exe	82
PID 4000 wrote to memory of 2904	4000	934cf36ec50d6f3d6f1e4a21eabbb06fce4b707fd9361b4dde6d08582da867b0.exe	82
PID 4000 wrote to memory of 2904	4000	934cf36ec50d6f3d6f1e4a21eabbb06fce4b707fd9361b4dde6d08582da867b0.exe	82
PID 4000 wrote to memory of 2904	4000	934cf36ec50d6f3d6f1e4a21eabbb06fce4b707fd9361b4dde6d08582da867b0.exe	82
PID 4000 wrote to memory of 2904	4000	934cf36ec50d6f3d6f1e4a21eabbb06fce4b707fd9361b4dde6d08582da867b0.exe	82
PID 4000 wrote to memory of 2904	4000	934cf36ec50d6f3d6f1e4a21eabbb06fce4b707fd9361b4dde6d08582da867b0.exe	82
PID 2904 wrote to memory of 1168	2904	934cf36ec50d6f3d6f1e4a21eabbb06fce4b707fd9361b4dde6d08582da867b0.exe	83
PID 2904 wrote to memory of 1168	2904	934cf36ec50d6f3d6f1e4a21eabbb06fce4b707fd9361b4dde6d08582da867b0.exe	83
PID 2904 wrote to memory of 1168	2904	934cf36ec50d6f3d6f1e4a21eabbb06fce4b707fd9361b4dde6d08582da867b0.exe	83
PID 1168 wrote to memory of 2820	1168	cmd.exe	86
PID 1168 wrote to memory of 2820	1168	cmd.exe	86
PID 1168 wrote to memory of 2820	1168	cmd.exe	86
PID 2904 wrote to memory of 1456	2904	934cf36ec50d6f3d6f1e4a21eabbb06fce4b707fd9361b4dde6d08582da867b0.exe	87
PID 2904 wrote to memory of 1456	2904	934cf36ec50d6f3d6f1e4a21eabbb06fce4b707fd9361b4dde6d08582da867b0.exe	87
PID 2904 wrote to memory of 1456	2904	934cf36ec50d6f3d6f1e4a21eabbb06fce4b707fd9361b4dde6d08582da867b0.exe	87
PID 1456 wrote to memory of 2884	1456	csrsll.exe	93
PID 1456 wrote to memory of 2884	1456	csrsll.exe	93
PID 1456 wrote to memory of 2884	1456	csrsll.exe	93
PID 1456 wrote to memory of 2884	1456	csrsll.exe	93
PID 1456 wrote to memory of 2884	1456	csrsll.exe	93
PID 1456 wrote to memory of 2884	1456	csrsll.exe	93
PID 1456 wrote to memory of 2884	1456	csrsll.exe	93
PID 1456 wrote to memory of 2884	1456	csrsll.exe	93
PID 1456 wrote to memory of 4660	1456	csrsll.exe	94
PID 1456 wrote to memory of 4660	1456	csrsll.exe	94
PID 1456 wrote to memory of 4660	1456	csrsll.exe	94
PID 1456 wrote to memory of 4660	1456	csrsll.exe	94
PID 1456 wrote to memory of 4660	1456	csrsll.exe	94
PID 1456 wrote to memory of 4660	1456	csrsll.exe	94
PID 1456 wrote to memory of 4660	1456	csrsll.exe	94
PID 1456 wrote to memory of 4660	1456	csrsll.exe	94

C:\Users\Admin\AppData\Local\Temp\934cf36ec50d6f3d6f1e4a21eabbb06fce4b707fd9361b4dde6d08582da867b0.exe
"C:\Users\Admin\AppData\Local\Temp\934cf36ec50d6f3d6f1e4a21eabbb06fce4b707fd9361b4dde6d08582da867b0.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4000
- C:\Users\Admin\AppData\Local\Temp\934cf36ec50d6f3d6f1e4a21eabbb06fce4b707fd9361b4dde6d08582da867b0.exe
  "C:\Users\Admin\AppData\Local\Temp\934cf36ec50d6f3d6f1e4a21eabbb06fce4b707fd9361b4dde6d08582da867b0.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2904
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\NVJTK.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1168
  - - 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:2820
- - 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:1456
  - - 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:2884
  - - 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:4660

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\NVJTK.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
790c69fe7560a27768cbb7bebd242079

SHA1
ce9d1dfd4fc31512d1a9611322fa8757e991f5ba

SHA256
614338be2351b603c576bc7de61e82d4429541a134e5723cadef4a9bbb64f7a6

SHA512
a3f4dda17a62a3cefb13790541a4c4d92aaa39030b50f7cb5e648c633c607231bb6cd0ab5b182bcfc08e89d4370f0fc150c13bf3aafa69200102d604542aa459

Download Submit
memory/1456-52-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1456-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1456-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1456-36-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2884-62-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2904-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2904-60-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/2904-11-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2904-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2904-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2904-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4000-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4000-6-0x0000000002340000-0x0000000002342000-memory.dmp

Filesize
8KB

Download
memory/4000-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4000-3-0x0000000002310000-0x0000000002312000-memory.dmp

Filesize
8KB

Download
memory/4000-13-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4000-4-0x0000000002330000-0x0000000002332000-memory.dmp

Filesize
8KB

Download
memory/4660-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4660-46-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4660-59-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4660-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4660-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4660-63-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads