modiloader | fa03e4da9b53d9bbbeb1059075fba64cd94e85cc98aee30c89cb21406ebfce8c

Analysis

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

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
08-12-2024 04:21

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General

Target

fa03e4da9b53d9bbbeb1059075fba64cd94e85cc98aee30c89cb21406ebfce8cN.exe
Size

90KB
MD5

d77436b788af09902937933fad455a90
SHA1

a1efcb46b81c7be966914d21d57dfead3d4dd768
SHA256

fa03e4da9b53d9bbbeb1059075fba64cd94e85cc98aee30c89cb21406ebfce8c
SHA512

999de3e54703b4d214a1952519f54e847edcfe4f4c464ce5f24efaccbcb164b56e29d5c6fb83bcd8b5ca5204627db0411d0c54cd1837da30751e3f44beed10dc
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDu: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 family
modiloader

ModiLoader Second Stage 4 IoCs

resource	yara_rule
behavioral2/memory/2720-57-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2720-59-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2720-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2720-63-0x0000000000400000-0x0000000000414000-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-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	fa03e4da9b53d9bbbeb1059075fba64cd94e85cc98aee30c89cb21406ebfce8cN.exe

Executes dropped EXE 3 IoCs

pid	Process
1016	csrsll.exe
3664	csrsll.exe
2720	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-1-5-21-3756129449-3121373848-4276368241-1000\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 4736 set thread context of 4420	4736	fa03e4da9b53d9bbbeb1059075fba64cd94e85cc98aee30c89cb21406ebfce8cN.exe	82
PID 1016 set thread context of 3664	1016	csrsll.exe	93
PID 1016 set thread context of 2720	1016	csrsll.exe	94

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4736-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4736-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4420-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4420-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4420-11-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4736-14-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x0032000000023b7f-29.dat	upx
behavioral2/memory/1016-37-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4420-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1016-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1016-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2720-49-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2720-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1016-58-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2720-57-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2720-59-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2720-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4420-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3664-62-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2720-63-0x0000000000400000-0x0000000000414000-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	fa03e4da9b53d9bbbeb1059075fba64cd94e85cc98aee30c89cb21406ebfce8cN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fa03e4da9b53d9bbbeb1059075fba64cd94e85cc98aee30c89cb21406ebfce8cN.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

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	3664	csrsll.exe
Token: SeDebugPrivilege	3664	csrsll.exe
Token: SeDebugPrivilege	3664	csrsll.exe
Token: SeDebugPrivilege	3664	csrsll.exe
Token: SeDebugPrivilege	3664	csrsll.exe
Token: SeDebugPrivilege	3664	csrsll.exe
Token: SeDebugPrivilege	3664	csrsll.exe
Token: SeDebugPrivilege	3664	csrsll.exe
Token: SeDebugPrivilege	3664	csrsll.exe
Token: SeDebugPrivilege	3664	csrsll.exe
Token: SeDebugPrivilege	3664	csrsll.exe
Token: SeDebugPrivilege	3664	csrsll.exe
Token: SeDebugPrivilege	3664	csrsll.exe
Token: SeDebugPrivilege	3664	csrsll.exe
Token: SeDebugPrivilege	3664	csrsll.exe
Token: SeDebugPrivilege	3664	csrsll.exe
Token: SeDebugPrivilege	3664	csrsll.exe
Token: SeDebugPrivilege	3664	csrsll.exe
Token: SeDebugPrivilege	3664	csrsll.exe
Token: SeDebugPrivilege	3664	csrsll.exe
Token: SeDebugPrivilege	3664	csrsll.exe
Token: SeDebugPrivilege	3664	csrsll.exe
Token: SeDebugPrivilege	3664	csrsll.exe
Token: SeDebugPrivilege	3664	csrsll.exe
Token: SeDebugPrivilege	3664	csrsll.exe
Token: SeDebugPrivilege	3664	csrsll.exe
Token: SeDebugPrivilege	3664	csrsll.exe
Token: SeDebugPrivilege	3664	csrsll.exe
Token: SeDebugPrivilege	3664	csrsll.exe
Token: SeDebugPrivilege	3664	csrsll.exe
Token: SeDebugPrivilege	3664	csrsll.exe
Token: SeDebugPrivilege	3664	csrsll.exe
Token: SeDebugPrivilege	3664	csrsll.exe
Token: SeDebugPrivilege	3664	csrsll.exe
Token: SeDebugPrivilege	3664	csrsll.exe
Token: SeDebugPrivilege	3664	csrsll.exe
Token: SeDebugPrivilege	3664	csrsll.exe
Token: SeDebugPrivilege	3664	csrsll.exe
Token: SeDebugPrivilege	3664	csrsll.exe
Token: SeDebugPrivilege	3664	csrsll.exe
Token: SeDebugPrivilege	3664	csrsll.exe
Token: SeDebugPrivilege	3664	csrsll.exe
Token: SeDebugPrivilege	3664	csrsll.exe
Token: SeDebugPrivilege	3664	csrsll.exe
Token: SeDebugPrivilege	3664	csrsll.exe
Token: SeDebugPrivilege	3664	csrsll.exe
Token: SeDebugPrivilege	3664	csrsll.exe
Token: SeDebugPrivilege	3664	csrsll.exe
Token: SeDebugPrivilege	3664	csrsll.exe
Token: SeDebugPrivilege	3664	csrsll.exe
Token: SeDebugPrivilege	3664	csrsll.exe
Token: SeDebugPrivilege	3664	csrsll.exe
Token: SeDebugPrivilege	3664	csrsll.exe
Token: SeDebugPrivilege	3664	csrsll.exe
Token: SeDebugPrivilege	3664	csrsll.exe
Token: SeDebugPrivilege	3664	csrsll.exe
Token: SeDebugPrivilege	3664	csrsll.exe
Token: SeDebugPrivilege	3664	csrsll.exe
Token: SeDebugPrivilege	3664	csrsll.exe
Token: SeDebugPrivilege	3664	csrsll.exe
Token: SeDebugPrivilege	3664	csrsll.exe
Token: SeDebugPrivilege	3664	csrsll.exe
Token: SeDebugPrivilege	3664	csrsll.exe
Token: SeDebugPrivilege	3664	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
4736	fa03e4da9b53d9bbbeb1059075fba64cd94e85cc98aee30c89cb21406ebfce8cN.exe
4420	fa03e4da9b53d9bbbeb1059075fba64cd94e85cc98aee30c89cb21406ebfce8cN.exe
1016	csrsll.exe
3664	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 4736 wrote to memory of 4420	4736	fa03e4da9b53d9bbbeb1059075fba64cd94e85cc98aee30c89cb21406ebfce8cN.exe	82
PID 4736 wrote to memory of 4420	4736	fa03e4da9b53d9bbbeb1059075fba64cd94e85cc98aee30c89cb21406ebfce8cN.exe	82
PID 4736 wrote to memory of 4420	4736	fa03e4da9b53d9bbbeb1059075fba64cd94e85cc98aee30c89cb21406ebfce8cN.exe	82
PID 4736 wrote to memory of 4420	4736	fa03e4da9b53d9bbbeb1059075fba64cd94e85cc98aee30c89cb21406ebfce8cN.exe	82
PID 4736 wrote to memory of 4420	4736	fa03e4da9b53d9bbbeb1059075fba64cd94e85cc98aee30c89cb21406ebfce8cN.exe	82
PID 4736 wrote to memory of 4420	4736	fa03e4da9b53d9bbbeb1059075fba64cd94e85cc98aee30c89cb21406ebfce8cN.exe	82
PID 4736 wrote to memory of 4420	4736	fa03e4da9b53d9bbbeb1059075fba64cd94e85cc98aee30c89cb21406ebfce8cN.exe	82
PID 4736 wrote to memory of 4420	4736	fa03e4da9b53d9bbbeb1059075fba64cd94e85cc98aee30c89cb21406ebfce8cN.exe	82
PID 4420 wrote to memory of 4820	4420	fa03e4da9b53d9bbbeb1059075fba64cd94e85cc98aee30c89cb21406ebfce8cN.exe	83
PID 4420 wrote to memory of 4820	4420	fa03e4da9b53d9bbbeb1059075fba64cd94e85cc98aee30c89cb21406ebfce8cN.exe	83
PID 4420 wrote to memory of 4820	4420	fa03e4da9b53d9bbbeb1059075fba64cd94e85cc98aee30c89cb21406ebfce8cN.exe	83
PID 4820 wrote to memory of 4856	4820	cmd.exe	86
PID 4820 wrote to memory of 4856	4820	cmd.exe	86
PID 4820 wrote to memory of 4856	4820	cmd.exe	86
PID 4420 wrote to memory of 1016	4420	fa03e4da9b53d9bbbeb1059075fba64cd94e85cc98aee30c89cb21406ebfce8cN.exe	87
PID 4420 wrote to memory of 1016	4420	fa03e4da9b53d9bbbeb1059075fba64cd94e85cc98aee30c89cb21406ebfce8cN.exe	87
PID 4420 wrote to memory of 1016	4420	fa03e4da9b53d9bbbeb1059075fba64cd94e85cc98aee30c89cb21406ebfce8cN.exe	87
PID 1016 wrote to memory of 3664	1016	csrsll.exe	93
PID 1016 wrote to memory of 3664	1016	csrsll.exe	93
PID 1016 wrote to memory of 3664	1016	csrsll.exe	93
PID 1016 wrote to memory of 3664	1016	csrsll.exe	93
PID 1016 wrote to memory of 3664	1016	csrsll.exe	93
PID 1016 wrote to memory of 3664	1016	csrsll.exe	93
PID 1016 wrote to memory of 3664	1016	csrsll.exe	93
PID 1016 wrote to memory of 3664	1016	csrsll.exe	93
PID 1016 wrote to memory of 2720	1016	csrsll.exe	94
PID 1016 wrote to memory of 2720	1016	csrsll.exe	94
PID 1016 wrote to memory of 2720	1016	csrsll.exe	94
PID 1016 wrote to memory of 2720	1016	csrsll.exe	94
PID 1016 wrote to memory of 2720	1016	csrsll.exe	94
PID 1016 wrote to memory of 2720	1016	csrsll.exe	94
PID 1016 wrote to memory of 2720	1016	csrsll.exe	94
PID 1016 wrote to memory of 2720	1016	csrsll.exe	94

C:\Users\Admin\AppData\Local\Temp\fa03e4da9b53d9bbbeb1059075fba64cd94e85cc98aee30c89cb21406ebfce8cN.exe
"C:\Users\Admin\AppData\Local\Temp\fa03e4da9b53d9bbbeb1059075fba64cd94e85cc98aee30c89cb21406ebfce8cN.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4736
- C:\Users\Admin\AppData\Local\Temp\fa03e4da9b53d9bbbeb1059075fba64cd94e85cc98aee30c89cb21406ebfce8cN.exe
  "C:\Users\Admin\AppData\Local\Temp\fa03e4da9b53d9bbbeb1059075fba64cd94e85cc98aee30c89cb21406ebfce8cN.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4420
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\HIFOA.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4820
  - - 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:4856
- - 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:1016
  - - 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:3664
  - - 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:2720

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\HIFOA.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
6961ddbd505916c9e6d02d91ff4be1f0

SHA1
62f2ad0154874538a79ddd05c558150186b7a6cc

SHA256
fb11a584fad7a7f00f74fc674f2a75da006350914c3ccc8b659351c7d71e16f7

SHA512
4faa349d2ea9b473ac7b182e295bf83bb7f827d5dac33a5caeb670535b2100a171452c60b1105a2f24228d17e00bc185d36dfca525e2fa8f6aa43fe11fadee98

Download Submit
memory/1016-58-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1016-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1016-37-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1016-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2720-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2720-59-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2720-57-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2720-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2720-49-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2720-63-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3664-62-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4420-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4420-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4420-11-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4420-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4420-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4736-14-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4736-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4736-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4736-6-0x00000000021D0000-0x00000000021D2000-memory.dmp

Filesize
8KB

Download
memory/4736-4-0x00000000021B0000-0x00000000021B2000-memory.dmp

Filesize
8KB

Download
memory/4736-3-0x00000000021A0000-0x00000000021A2000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads