modiloader | ffa16d90d6492788858856cca17e7af392dc81e7386fcae3ab2ddc942bda01e6

Analysis

max time kernel
148s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
21-12-2024 07:16

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General

Target

ffa16d90d6492788858856cca17e7af392dc81e7386fcae3ab2ddc942bda01e6.exe
Size

90KB
MD5

cce63a7fad94df386734cf5b72b5de45
SHA1

6776c7c1850e1cbc23173a7753076b516285382d
SHA256

ffa16d90d6492788858856cca17e7af392dc81e7386fcae3ab2ddc942bda01e6
SHA512

b0ba0de77a8beaf5019bb38c2bd22b3367039379a0fc08dea5197b4104c8bce4691e25f34274fdd966167f183b811f4ddeb302f563511dc3a5f9a5a44d21381f
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDl:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3b

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/2816-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2816-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2816-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2816-62-0x0000000000400000-0x0000000000414000-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-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation	ffa16d90d6492788858856cca17e7af392dc81e7386fcae3ab2ddc942bda01e6.exe

Executes dropped EXE 3 IoCs

pid	Process
3924	csrsll.exe
928	csrsll.exe
2816	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-1-5-21-940901362-3608833189-1915618603-1000\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 2756 set thread context of 2684	2756	ffa16d90d6492788858856cca17e7af392dc81e7386fcae3ab2ddc942bda01e6.exe	83
PID 3924 set thread context of 928	3924	csrsll.exe	98
PID 3924 set thread context of 2816	3924	csrsll.exe	99

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2756-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2756-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2684-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2684-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2756-11-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2684-12-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2684-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x0008000000023cbe-29.dat	upx
behavioral2/memory/2684-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3924-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3924-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2816-45-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2816-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2816-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2816-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2816-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3924-57-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2684-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/928-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2816-62-0x0000000000400000-0x0000000000414000-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	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	ffa16d90d6492788858856cca17e7af392dc81e7386fcae3ab2ddc942bda01e6.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ffa16d90d6492788858856cca17e7af392dc81e7386fcae3ab2ddc942bda01e6.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	928	csrsll.exe
Token: SeDebugPrivilege	928	csrsll.exe
Token: SeDebugPrivilege	928	csrsll.exe
Token: SeDebugPrivilege	928	csrsll.exe
Token: SeDebugPrivilege	928	csrsll.exe
Token: SeDebugPrivilege	928	csrsll.exe
Token: SeDebugPrivilege	928	csrsll.exe
Token: SeDebugPrivilege	928	csrsll.exe
Token: SeDebugPrivilege	928	csrsll.exe
Token: SeDebugPrivilege	928	csrsll.exe
Token: SeDebugPrivilege	928	csrsll.exe
Token: SeDebugPrivilege	928	csrsll.exe
Token: SeDebugPrivilege	928	csrsll.exe
Token: SeDebugPrivilege	928	csrsll.exe
Token: SeDebugPrivilege	928	csrsll.exe
Token: SeDebugPrivilege	928	csrsll.exe
Token: SeDebugPrivilege	928	csrsll.exe
Token: SeDebugPrivilege	928	csrsll.exe
Token: SeDebugPrivilege	928	csrsll.exe
Token: SeDebugPrivilege	928	csrsll.exe
Token: SeDebugPrivilege	928	csrsll.exe
Token: SeDebugPrivilege	928	csrsll.exe
Token: SeDebugPrivilege	928	csrsll.exe
Token: SeDebugPrivilege	928	csrsll.exe
Token: SeDebugPrivilege	928	csrsll.exe
Token: SeDebugPrivilege	928	csrsll.exe
Token: SeDebugPrivilege	928	csrsll.exe
Token: SeDebugPrivilege	928	csrsll.exe
Token: SeDebugPrivilege	928	csrsll.exe
Token: SeDebugPrivilege	928	csrsll.exe
Token: SeDebugPrivilege	928	csrsll.exe
Token: SeDebugPrivilege	928	csrsll.exe
Token: SeDebugPrivilege	928	csrsll.exe
Token: SeDebugPrivilege	928	csrsll.exe
Token: SeDebugPrivilege	928	csrsll.exe
Token: SeDebugPrivilege	928	csrsll.exe
Token: SeDebugPrivilege	928	csrsll.exe
Token: SeDebugPrivilege	928	csrsll.exe
Token: SeDebugPrivilege	928	csrsll.exe
Token: SeDebugPrivilege	928	csrsll.exe
Token: SeDebugPrivilege	928	csrsll.exe
Token: SeDebugPrivilege	928	csrsll.exe
Token: SeDebugPrivilege	928	csrsll.exe
Token: SeDebugPrivilege	928	csrsll.exe
Token: SeDebugPrivilege	928	csrsll.exe
Token: SeDebugPrivilege	928	csrsll.exe
Token: SeDebugPrivilege	928	csrsll.exe
Token: SeDebugPrivilege	928	csrsll.exe
Token: SeDebugPrivilege	928	csrsll.exe
Token: SeDebugPrivilege	928	csrsll.exe
Token: SeDebugPrivilege	928	csrsll.exe
Token: SeDebugPrivilege	928	csrsll.exe
Token: SeDebugPrivilege	928	csrsll.exe
Token: SeDebugPrivilege	928	csrsll.exe
Token: SeDebugPrivilege	928	csrsll.exe
Token: SeDebugPrivilege	928	csrsll.exe
Token: SeDebugPrivilege	928	csrsll.exe
Token: SeDebugPrivilege	928	csrsll.exe
Token: SeDebugPrivilege	928	csrsll.exe
Token: SeDebugPrivilege	928	csrsll.exe
Token: SeDebugPrivilege	928	csrsll.exe
Token: SeDebugPrivilege	928	csrsll.exe
Token: SeDebugPrivilege	928	csrsll.exe
Token: SeDebugPrivilege	928	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2756	ffa16d90d6492788858856cca17e7af392dc81e7386fcae3ab2ddc942bda01e6.exe
2684	ffa16d90d6492788858856cca17e7af392dc81e7386fcae3ab2ddc942bda01e6.exe
3924	csrsll.exe
928	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 2756 wrote to memory of 2684	2756	ffa16d90d6492788858856cca17e7af392dc81e7386fcae3ab2ddc942bda01e6.exe	83
PID 2756 wrote to memory of 2684	2756	ffa16d90d6492788858856cca17e7af392dc81e7386fcae3ab2ddc942bda01e6.exe	83
PID 2756 wrote to memory of 2684	2756	ffa16d90d6492788858856cca17e7af392dc81e7386fcae3ab2ddc942bda01e6.exe	83
PID 2756 wrote to memory of 2684	2756	ffa16d90d6492788858856cca17e7af392dc81e7386fcae3ab2ddc942bda01e6.exe	83
PID 2756 wrote to memory of 2684	2756	ffa16d90d6492788858856cca17e7af392dc81e7386fcae3ab2ddc942bda01e6.exe	83
PID 2756 wrote to memory of 2684	2756	ffa16d90d6492788858856cca17e7af392dc81e7386fcae3ab2ddc942bda01e6.exe	83
PID 2756 wrote to memory of 2684	2756	ffa16d90d6492788858856cca17e7af392dc81e7386fcae3ab2ddc942bda01e6.exe	83
PID 2756 wrote to memory of 2684	2756	ffa16d90d6492788858856cca17e7af392dc81e7386fcae3ab2ddc942bda01e6.exe	83
PID 2684 wrote to memory of 5072	2684	ffa16d90d6492788858856cca17e7af392dc81e7386fcae3ab2ddc942bda01e6.exe	84
PID 2684 wrote to memory of 5072	2684	ffa16d90d6492788858856cca17e7af392dc81e7386fcae3ab2ddc942bda01e6.exe	84
PID 2684 wrote to memory of 5072	2684	ffa16d90d6492788858856cca17e7af392dc81e7386fcae3ab2ddc942bda01e6.exe	84
PID 5072 wrote to memory of 5056	5072	cmd.exe	88
PID 5072 wrote to memory of 5056	5072	cmd.exe	88
PID 5072 wrote to memory of 5056	5072	cmd.exe	88
PID 2684 wrote to memory of 3924	2684	ffa16d90d6492788858856cca17e7af392dc81e7386fcae3ab2ddc942bda01e6.exe	89
PID 2684 wrote to memory of 3924	2684	ffa16d90d6492788858856cca17e7af392dc81e7386fcae3ab2ddc942bda01e6.exe	89
PID 2684 wrote to memory of 3924	2684	ffa16d90d6492788858856cca17e7af392dc81e7386fcae3ab2ddc942bda01e6.exe	89
PID 3924 wrote to memory of 928	3924	csrsll.exe	98
PID 3924 wrote to memory of 928	3924	csrsll.exe	98
PID 3924 wrote to memory of 928	3924	csrsll.exe	98
PID 3924 wrote to memory of 928	3924	csrsll.exe	98
PID 3924 wrote to memory of 928	3924	csrsll.exe	98
PID 3924 wrote to memory of 928	3924	csrsll.exe	98
PID 3924 wrote to memory of 928	3924	csrsll.exe	98
PID 3924 wrote to memory of 928	3924	csrsll.exe	98
PID 3924 wrote to memory of 2816	3924	csrsll.exe	99
PID 3924 wrote to memory of 2816	3924	csrsll.exe	99
PID 3924 wrote to memory of 2816	3924	csrsll.exe	99
PID 3924 wrote to memory of 2816	3924	csrsll.exe	99
PID 3924 wrote to memory of 2816	3924	csrsll.exe	99
PID 3924 wrote to memory of 2816	3924	csrsll.exe	99
PID 3924 wrote to memory of 2816	3924	csrsll.exe	99
PID 3924 wrote to memory of 2816	3924	csrsll.exe	99

C:\Users\Admin\AppData\Local\Temp\ffa16d90d6492788858856cca17e7af392dc81e7386fcae3ab2ddc942bda01e6.exe
"C:\Users\Admin\AppData\Local\Temp\ffa16d90d6492788858856cca17e7af392dc81e7386fcae3ab2ddc942bda01e6.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2756
- C:\Users\Admin\AppData\Local\Temp\ffa16d90d6492788858856cca17e7af392dc81e7386fcae3ab2ddc942bda01e6.exe
  "C:\Users\Admin\AppData\Local\Temp\ffa16d90d6492788858856cca17e7af392dc81e7386fcae3ab2ddc942bda01e6.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2684
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\KXENW.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:5072
  - - 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:5056
- - 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:3924
  - - 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:928
  - - 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:2816

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\KXENW.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
39461d4682e7ea49d7b5b0e939e1799e

SHA1
00a404af771dded401d5a8901e014de89deda627

SHA256
8133ece102729bd05bb6cd7bc5aec976c16235d1366e44369a7fcde032c73b40

SHA512
dfd872fb448540f98fb03913cee612b27019e7263398137e3984f2d11b10abc7fa8fc25b28bf07578b5e84627bd0fd0c68a08b91272a54e9dbb520d4f473890d

Download Submit
memory/928-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2684-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2684-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2684-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2684-12-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2684-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2684-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2756-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2756-11-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2756-6-0x0000000002CA0000-0x0000000002CA2000-memory.dmp

Filesize
8KB

Download
memory/2756-4-0x0000000002C70000-0x0000000002C72000-memory.dmp

Filesize
8KB

Download
memory/2756-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2756-3-0x0000000002B60000-0x0000000002B62000-memory.dmp

Filesize
8KB

Download
memory/2816-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2816-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2816-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2816-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2816-45-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2816-62-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3924-57-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3924-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3924-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads