modiloader | 993b4c7064ee3cb97eb082224de5e8f172279d5af33f88fac3946eb5da4b5c94

Analysis

max time kernel
119s
max time network
119s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
12-09-2024 08:48

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General

Target

e5e2ea281968da06ad34851910eaee00N.exe
Size

90KB
MD5

e5e2ea281968da06ad34851910eaee00
SHA1

b9f3a9cb2768dd62be8a0c9202994d7282ef856f
SHA256

993b4c7064ee3cb97eb082224de5e8f172279d5af33f88fac3946eb5da4b5c94
SHA512

bc93502188e2f18fa335355db3549b8076c7afd9f81e3dc4eed33be0af433e75a214a32976d342d42a39fe0ff28193ede23af2d5c93f2b827f3a10cbe3d65c84
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/4708-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4708-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4708-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4708-62-0x0000000000400000-0x0000000000414000-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-1-5-21-355097885-2402257403-2971294179-1000\Control Panel\International\Geo\Nation	e5e2ea281968da06ad34851910eaee00N.exe

Executes dropped EXE 3 IoCs

pid	Process
4680	csrsll.exe
4088	csrsll.exe
4708	csrsll.exe

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4608-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4608-4-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3636-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3636-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3636-11-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4608-14-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x000e00000002338f-29.dat	upx
behavioral2/memory/4680-36-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3636-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4680-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4680-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4708-47-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4708-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4708-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4708-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4708-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4680-57-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3636-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4088-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4708-62-0x0000000000400000-0x0000000000414000-memory.dmp	upx

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-1-5-21-355097885-2402257403-2971294179-1000\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 4608 set thread context of 3636	4608	e5e2ea281968da06ad34851910eaee00N.exe	91
PID 4680 set thread context of 4088	4680	csrsll.exe	99
PID 4680 set thread context of 4708	4680	csrsll.exe	100

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	e5e2ea281968da06ad34851910eaee00N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e5e2ea281968da06ad34851910eaee00N.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	4088	csrsll.exe
Token: SeDebugPrivilege	4088	csrsll.exe
Token: SeDebugPrivilege	4088	csrsll.exe
Token: SeDebugPrivilege	4088	csrsll.exe
Token: SeDebugPrivilege	4088	csrsll.exe
Token: SeDebugPrivilege	4088	csrsll.exe
Token: SeDebugPrivilege	4088	csrsll.exe
Token: SeDebugPrivilege	4088	csrsll.exe
Token: SeDebugPrivilege	4088	csrsll.exe
Token: SeDebugPrivilege	4088	csrsll.exe
Token: SeDebugPrivilege	4088	csrsll.exe
Token: SeDebugPrivilege	4088	csrsll.exe
Token: SeDebugPrivilege	4088	csrsll.exe
Token: SeDebugPrivilege	4088	csrsll.exe
Token: SeDebugPrivilege	4088	csrsll.exe
Token: SeDebugPrivilege	4088	csrsll.exe
Token: SeDebugPrivilege	4088	csrsll.exe
Token: SeDebugPrivilege	4088	csrsll.exe
Token: SeDebugPrivilege	4088	csrsll.exe
Token: SeDebugPrivilege	4088	csrsll.exe
Token: SeDebugPrivilege	4088	csrsll.exe
Token: SeDebugPrivilege	4088	csrsll.exe
Token: SeDebugPrivilege	4088	csrsll.exe
Token: SeDebugPrivilege	4088	csrsll.exe
Token: SeDebugPrivilege	4088	csrsll.exe
Token: SeDebugPrivilege	4088	csrsll.exe
Token: SeDebugPrivilege	4088	csrsll.exe
Token: SeDebugPrivilege	4088	csrsll.exe
Token: SeDebugPrivilege	4088	csrsll.exe
Token: SeDebugPrivilege	4088	csrsll.exe
Token: SeDebugPrivilege	4088	csrsll.exe
Token: SeDebugPrivilege	4088	csrsll.exe
Token: SeDebugPrivilege	4088	csrsll.exe
Token: SeDebugPrivilege	4088	csrsll.exe
Token: SeDebugPrivilege	4088	csrsll.exe
Token: SeDebugPrivilege	4088	csrsll.exe
Token: SeDebugPrivilege	4088	csrsll.exe
Token: SeDebugPrivilege	4088	csrsll.exe
Token: SeDebugPrivilege	4088	csrsll.exe
Token: SeDebugPrivilege	4088	csrsll.exe
Token: SeDebugPrivilege	4088	csrsll.exe
Token: SeDebugPrivilege	4088	csrsll.exe
Token: SeDebugPrivilege	4088	csrsll.exe
Token: SeDebugPrivilege	4088	csrsll.exe
Token: SeDebugPrivilege	4088	csrsll.exe
Token: SeDebugPrivilege	4088	csrsll.exe
Token: SeDebugPrivilege	4088	csrsll.exe
Token: SeDebugPrivilege	4088	csrsll.exe
Token: SeDebugPrivilege	4088	csrsll.exe
Token: SeDebugPrivilege	4088	csrsll.exe
Token: SeDebugPrivilege	4088	csrsll.exe
Token: SeDebugPrivilege	4088	csrsll.exe
Token: SeDebugPrivilege	4088	csrsll.exe
Token: SeDebugPrivilege	4088	csrsll.exe
Token: SeDebugPrivilege	4088	csrsll.exe
Token: SeDebugPrivilege	4088	csrsll.exe
Token: SeDebugPrivilege	4088	csrsll.exe
Token: SeDebugPrivilege	4088	csrsll.exe
Token: SeDebugPrivilege	4088	csrsll.exe
Token: SeDebugPrivilege	4088	csrsll.exe
Token: SeDebugPrivilege	4088	csrsll.exe
Token: SeDebugPrivilege	4088	csrsll.exe
Token: SeDebugPrivilege	4088	csrsll.exe
Token: SeDebugPrivilege	4088	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
4608	e5e2ea281968da06ad34851910eaee00N.exe
3636	e5e2ea281968da06ad34851910eaee00N.exe
4680	csrsll.exe
4088	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 4608 wrote to memory of 3636	4608	e5e2ea281968da06ad34851910eaee00N.exe	91
PID 4608 wrote to memory of 3636	4608	e5e2ea281968da06ad34851910eaee00N.exe	91
PID 4608 wrote to memory of 3636	4608	e5e2ea281968da06ad34851910eaee00N.exe	91
PID 4608 wrote to memory of 3636	4608	e5e2ea281968da06ad34851910eaee00N.exe	91
PID 4608 wrote to memory of 3636	4608	e5e2ea281968da06ad34851910eaee00N.exe	91
PID 4608 wrote to memory of 3636	4608	e5e2ea281968da06ad34851910eaee00N.exe	91
PID 4608 wrote to memory of 3636	4608	e5e2ea281968da06ad34851910eaee00N.exe	91
PID 4608 wrote to memory of 3636	4608	e5e2ea281968da06ad34851910eaee00N.exe	91
PID 3636 wrote to memory of 4768	3636	e5e2ea281968da06ad34851910eaee00N.exe	94
PID 3636 wrote to memory of 4768	3636	e5e2ea281968da06ad34851910eaee00N.exe	94
PID 3636 wrote to memory of 4768	3636	e5e2ea281968da06ad34851910eaee00N.exe	94
PID 4768 wrote to memory of 1812	4768	cmd.exe	97
PID 4768 wrote to memory of 1812	4768	cmd.exe	97
PID 4768 wrote to memory of 1812	4768	cmd.exe	97
PID 3636 wrote to memory of 4680	3636	e5e2ea281968da06ad34851910eaee00N.exe	98
PID 3636 wrote to memory of 4680	3636	e5e2ea281968da06ad34851910eaee00N.exe	98
PID 3636 wrote to memory of 4680	3636	e5e2ea281968da06ad34851910eaee00N.exe	98
PID 4680 wrote to memory of 4088	4680	csrsll.exe	99
PID 4680 wrote to memory of 4088	4680	csrsll.exe	99
PID 4680 wrote to memory of 4088	4680	csrsll.exe	99
PID 4680 wrote to memory of 4088	4680	csrsll.exe	99
PID 4680 wrote to memory of 4088	4680	csrsll.exe	99
PID 4680 wrote to memory of 4088	4680	csrsll.exe	99
PID 4680 wrote to memory of 4088	4680	csrsll.exe	99
PID 4680 wrote to memory of 4088	4680	csrsll.exe	99
PID 4680 wrote to memory of 4708	4680	csrsll.exe	100
PID 4680 wrote to memory of 4708	4680	csrsll.exe	100
PID 4680 wrote to memory of 4708	4680	csrsll.exe	100
PID 4680 wrote to memory of 4708	4680	csrsll.exe	100
PID 4680 wrote to memory of 4708	4680	csrsll.exe	100
PID 4680 wrote to memory of 4708	4680	csrsll.exe	100
PID 4680 wrote to memory of 4708	4680	csrsll.exe	100
PID 4680 wrote to memory of 4708	4680	csrsll.exe	100

C:\Users\Admin\AppData\Local\Temp\e5e2ea281968da06ad34851910eaee00N.exe
"C:\Users\Admin\AppData\Local\Temp\e5e2ea281968da06ad34851910eaee00N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4608
- C:\Users\Admin\AppData\Local\Temp\e5e2ea281968da06ad34851910eaee00N.exe
  "C:\Users\Admin\AppData\Local\Temp\e5e2ea281968da06ad34851910eaee00N.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3636
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\BDGRS.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4768
  - - 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:1812
- - 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:4680
  - - 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:4088
  - - 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:4708

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\BDGRS.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
adcbd86a125137b1249019b75361b56b

SHA1
a8c12c0eb0df4c4d04bbcee3e403ccf8f9c0cbc6

SHA256
ab4f3f31677318040759d41a6c0cc156021a05d8c5455426b3e7f14cb15b7b84

SHA512
6c8c3e96f88d5bfb77b64bf5c43b94fa1c8cef09cd4df69c598f44ece80106888a9d27c8cb3d88290bf0c8c0f65abf4490e81ff0265eaf9c362d426ee8117bbb

Download Submit
memory/3636-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3636-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3636-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3636-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3636-11-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4088-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4608-4-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4608-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4608-5-0x00000000021E0000-0x00000000021E2000-memory.dmp

Filesize
8KB

Download
memory/4608-3-0x00000000021C0000-0x00000000021C2000-memory.dmp

Filesize
8KB

Download
memory/4608-6-0x00000000021F0000-0x00000000021F2000-memory.dmp

Filesize
8KB

Download
memory/4608-14-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4680-57-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4680-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4680-36-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4680-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4708-47-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4708-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4708-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4708-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4708-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4708-62-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads