modiloader | b80f7242ab9a68fa4e7e403ab88ae4dd13e03fcc6a4f6f9b3a27e38812898293

Analysis

max time kernel
119s
max time network
120s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
20-12-2024 05:12

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General

Target

b80f7242ab9a68fa4e7e403ab88ae4dd13e03fcc6a4f6f9b3a27e38812898293N.exe
Size

90KB
MD5

9e3c66eef860342bb4b8c336b7feb350
SHA1

c227fe98e359ea6f79d859e262b6863372d9d809
SHA256

b80f7242ab9a68fa4e7e403ab88ae4dd13e03fcc6a4f6f9b3a27e38812898293
SHA512

6cb9be731e3fd039265f419d8dd85974f4b4edbd5117a774fb6a43723a23fd0a39ff77bafe1d2cc2cf750dacf87d080d2735951a7af94d6cc6fb782311d69959
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDb:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3x

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/1072-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1072-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1072-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1072-63-0x0000000000400000-0x0000000000414000-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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	b80f7242ab9a68fa4e7e403ab88ae4dd13e03fcc6a4f6f9b3a27e38812898293N.exe

Executes dropped EXE 3 IoCs

pid	Process
1216	csrsll.exe
4768	csrsll.exe
1072	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 2808 set thread context of 2648	2808	b80f7242ab9a68fa4e7e403ab88ae4dd13e03fcc6a4f6f9b3a27e38812898293N.exe	84
PID 1216 set thread context of 4768	1216	csrsll.exe	101
PID 1216 set thread context of 1072	1216	csrsll.exe	102

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2808-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2808-4-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2648-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2648-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2808-11-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2648-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x000b000000023b7c-29.dat	upx
behavioral2/memory/1216-36-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2648-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1216-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1216-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1072-46-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1072-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1072-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1072-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1072-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1216-58-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2648-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4768-62-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1072-63-0x0000000000400000-0x0000000000414000-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	b80f7242ab9a68fa4e7e403ab88ae4dd13e03fcc6a4f6f9b3a27e38812898293N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b80f7242ab9a68fa4e7e403ab88ae4dd13e03fcc6a4f6f9b3a27e38812898293N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	4768	csrsll.exe
Token: SeDebugPrivilege	4768	csrsll.exe
Token: SeDebugPrivilege	4768	csrsll.exe
Token: SeDebugPrivilege	4768	csrsll.exe
Token: SeDebugPrivilege	4768	csrsll.exe
Token: SeDebugPrivilege	4768	csrsll.exe
Token: SeDebugPrivilege	4768	csrsll.exe
Token: SeDebugPrivilege	4768	csrsll.exe
Token: SeDebugPrivilege	4768	csrsll.exe
Token: SeDebugPrivilege	4768	csrsll.exe
Token: SeDebugPrivilege	4768	csrsll.exe
Token: SeDebugPrivilege	4768	csrsll.exe
Token: SeDebugPrivilege	4768	csrsll.exe
Token: SeDebugPrivilege	4768	csrsll.exe
Token: SeDebugPrivilege	4768	csrsll.exe
Token: SeDebugPrivilege	4768	csrsll.exe
Token: SeDebugPrivilege	4768	csrsll.exe
Token: SeDebugPrivilege	4768	csrsll.exe
Token: SeDebugPrivilege	4768	csrsll.exe
Token: SeDebugPrivilege	4768	csrsll.exe
Token: SeDebugPrivilege	4768	csrsll.exe
Token: SeDebugPrivilege	4768	csrsll.exe
Token: SeDebugPrivilege	4768	csrsll.exe
Token: SeDebugPrivilege	4768	csrsll.exe
Token: SeDebugPrivilege	4768	csrsll.exe
Token: SeDebugPrivilege	4768	csrsll.exe
Token: SeDebugPrivilege	4768	csrsll.exe
Token: SeDebugPrivilege	4768	csrsll.exe
Token: SeDebugPrivilege	4768	csrsll.exe
Token: SeDebugPrivilege	4768	csrsll.exe
Token: SeDebugPrivilege	4768	csrsll.exe
Token: SeDebugPrivilege	4768	csrsll.exe
Token: SeDebugPrivilege	4768	csrsll.exe
Token: SeDebugPrivilege	4768	csrsll.exe
Token: SeDebugPrivilege	4768	csrsll.exe
Token: SeDebugPrivilege	4768	csrsll.exe
Token: SeDebugPrivilege	4768	csrsll.exe
Token: SeDebugPrivilege	4768	csrsll.exe
Token: SeDebugPrivilege	4768	csrsll.exe
Token: SeDebugPrivilege	4768	csrsll.exe
Token: SeDebugPrivilege	4768	csrsll.exe
Token: SeDebugPrivilege	4768	csrsll.exe
Token: SeDebugPrivilege	4768	csrsll.exe
Token: SeDebugPrivilege	4768	csrsll.exe
Token: SeDebugPrivilege	4768	csrsll.exe
Token: SeDebugPrivilege	4768	csrsll.exe
Token: SeDebugPrivilege	4768	csrsll.exe
Token: SeDebugPrivilege	4768	csrsll.exe
Token: SeDebugPrivilege	4768	csrsll.exe
Token: SeDebugPrivilege	4768	csrsll.exe
Token: SeDebugPrivilege	4768	csrsll.exe
Token: SeDebugPrivilege	4768	csrsll.exe
Token: SeDebugPrivilege	4768	csrsll.exe
Token: SeDebugPrivilege	4768	csrsll.exe
Token: SeDebugPrivilege	4768	csrsll.exe
Token: SeDebugPrivilege	4768	csrsll.exe
Token: SeDebugPrivilege	4768	csrsll.exe
Token: SeDebugPrivilege	4768	csrsll.exe
Token: SeDebugPrivilege	4768	csrsll.exe
Token: SeDebugPrivilege	4768	csrsll.exe
Token: SeDebugPrivilege	4768	csrsll.exe
Token: SeDebugPrivilege	4768	csrsll.exe
Token: SeDebugPrivilege	4768	csrsll.exe
Token: SeDebugPrivilege	4768	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2808	b80f7242ab9a68fa4e7e403ab88ae4dd13e03fcc6a4f6f9b3a27e38812898293N.exe
2648	b80f7242ab9a68fa4e7e403ab88ae4dd13e03fcc6a4f6f9b3a27e38812898293N.exe
1216	csrsll.exe
4768	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 2808 wrote to memory of 2648	2808	b80f7242ab9a68fa4e7e403ab88ae4dd13e03fcc6a4f6f9b3a27e38812898293N.exe	84
PID 2808 wrote to memory of 2648	2808	b80f7242ab9a68fa4e7e403ab88ae4dd13e03fcc6a4f6f9b3a27e38812898293N.exe	84
PID 2808 wrote to memory of 2648	2808	b80f7242ab9a68fa4e7e403ab88ae4dd13e03fcc6a4f6f9b3a27e38812898293N.exe	84
PID 2808 wrote to memory of 2648	2808	b80f7242ab9a68fa4e7e403ab88ae4dd13e03fcc6a4f6f9b3a27e38812898293N.exe	84
PID 2808 wrote to memory of 2648	2808	b80f7242ab9a68fa4e7e403ab88ae4dd13e03fcc6a4f6f9b3a27e38812898293N.exe	84
PID 2808 wrote to memory of 2648	2808	b80f7242ab9a68fa4e7e403ab88ae4dd13e03fcc6a4f6f9b3a27e38812898293N.exe	84
PID 2808 wrote to memory of 2648	2808	b80f7242ab9a68fa4e7e403ab88ae4dd13e03fcc6a4f6f9b3a27e38812898293N.exe	84
PID 2808 wrote to memory of 2648	2808	b80f7242ab9a68fa4e7e403ab88ae4dd13e03fcc6a4f6f9b3a27e38812898293N.exe	84
PID 2648 wrote to memory of 3592	2648	b80f7242ab9a68fa4e7e403ab88ae4dd13e03fcc6a4f6f9b3a27e38812898293N.exe	87
PID 2648 wrote to memory of 3592	2648	b80f7242ab9a68fa4e7e403ab88ae4dd13e03fcc6a4f6f9b3a27e38812898293N.exe	87
PID 2648 wrote to memory of 3592	2648	b80f7242ab9a68fa4e7e403ab88ae4dd13e03fcc6a4f6f9b3a27e38812898293N.exe	87
PID 3592 wrote to memory of 3232	3592	cmd.exe	91
PID 3592 wrote to memory of 3232	3592	cmd.exe	91
PID 3592 wrote to memory of 3232	3592	cmd.exe	91
PID 2648 wrote to memory of 1216	2648	b80f7242ab9a68fa4e7e403ab88ae4dd13e03fcc6a4f6f9b3a27e38812898293N.exe	92
PID 2648 wrote to memory of 1216	2648	b80f7242ab9a68fa4e7e403ab88ae4dd13e03fcc6a4f6f9b3a27e38812898293N.exe	92
PID 2648 wrote to memory of 1216	2648	b80f7242ab9a68fa4e7e403ab88ae4dd13e03fcc6a4f6f9b3a27e38812898293N.exe	92
PID 1216 wrote to memory of 4768	1216	csrsll.exe	101
PID 1216 wrote to memory of 4768	1216	csrsll.exe	101
PID 1216 wrote to memory of 4768	1216	csrsll.exe	101
PID 1216 wrote to memory of 4768	1216	csrsll.exe	101
PID 1216 wrote to memory of 4768	1216	csrsll.exe	101
PID 1216 wrote to memory of 4768	1216	csrsll.exe	101
PID 1216 wrote to memory of 4768	1216	csrsll.exe	101
PID 1216 wrote to memory of 4768	1216	csrsll.exe	101
PID 1216 wrote to memory of 1072	1216	csrsll.exe	102
PID 1216 wrote to memory of 1072	1216	csrsll.exe	102
PID 1216 wrote to memory of 1072	1216	csrsll.exe	102
PID 1216 wrote to memory of 1072	1216	csrsll.exe	102
PID 1216 wrote to memory of 1072	1216	csrsll.exe	102
PID 1216 wrote to memory of 1072	1216	csrsll.exe	102
PID 1216 wrote to memory of 1072	1216	csrsll.exe	102
PID 1216 wrote to memory of 1072	1216	csrsll.exe	102

C:\Users\Admin\AppData\Local\Temp\b80f7242ab9a68fa4e7e403ab88ae4dd13e03fcc6a4f6f9b3a27e38812898293N.exe
"C:\Users\Admin\AppData\Local\Temp\b80f7242ab9a68fa4e7e403ab88ae4dd13e03fcc6a4f6f9b3a27e38812898293N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2808
- C:\Users\Admin\AppData\Local\Temp\b80f7242ab9a68fa4e7e403ab88ae4dd13e03fcc6a4f6f9b3a27e38812898293N.exe
  "C:\Users\Admin\AppData\Local\Temp\b80f7242ab9a68fa4e7e403ab88ae4dd13e03fcc6a4f6f9b3a27e38812898293N.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2648
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\WKWHG.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3592
  - - 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:3232
- - 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:1216
  - - 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:4768
  - - 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:1072

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\WKWHG.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
fcfe76616b764e2700f4e8a8eeb9a450

SHA1
75e5d897d9a0d2ed08d152c5e7ffdeaf04595f07

SHA256
50d4cc08669544eac249d40234743ed632fa98fdafd8f426f32ab09b4430f390

SHA512
9619b477b06575fd9c40f024e5d6d5b942d00a153a619c78b2f02c5175a68be6cf85712c351ce0e46d08d111596a904afe825bf75926d9ed3a0d69c4b61dec17

Download Submit
memory/1072-63-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1072-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1072-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1072-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1072-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1072-46-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1216-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1216-58-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1216-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1216-36-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2648-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2648-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2648-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2648-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2648-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2808-11-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2808-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2808-5-0x00000000021C0000-0x00000000021C2000-memory.dmp

Filesize
8KB

Download
memory/2808-6-0x00000000021E0000-0x00000000021E2000-memory.dmp

Filesize
8KB

Download
memory/2808-4-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2808-3-0x00000000021A0000-0x00000000021A2000-memory.dmp

Filesize
8KB

Download
memory/4768-62-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads