modiloader | db15b1f6acd7722f9daa00353bed077b95310a80de7a392ba6192c5774e30c62

Analysis

max time kernel
118s
max time network
118s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
13-01-2025 12:45

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General

Target

db15b1f6acd7722f9daa00353bed077b95310a80de7a392ba6192c5774e30c62.exe
Size

90KB
MD5

fa2dbc16840066ba38d84206020ee4d4
SHA1

1dfe46b41f6915800be93c777232af8d84b44fdb
SHA256

db15b1f6acd7722f9daa00353bed077b95310a80de7a392ba6192c5774e30c62
SHA512

c70565e78a40534cec3a053fa55408a53e5fb7b6304fbfc3a24eceb2b02f88845f5a221941a3f98dd842f6c9ac07ca59c4fe119c832159b4fe8d9fd4a65cab64
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDI:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3m

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 1 IoCs

resource	yara_rule
behavioral1/memory/1000-260-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
1648	csrsll.exe
1592	csrsll.exe
1000	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
2876	db15b1f6acd7722f9daa00353bed077b95310a80de7a392ba6192c5774e30c62.exe
2876	db15b1f6acd7722f9daa00353bed077b95310a80de7a392ba6192c5774e30c62.exe
2876	db15b1f6acd7722f9daa00353bed077b95310a80de7a392ba6192c5774e30c62.exe
2876	db15b1f6acd7722f9daa00353bed077b95310a80de7a392ba6192c5774e30c62.exe
2876	db15b1f6acd7722f9daa00353bed077b95310a80de7a392ba6192c5774e30c62.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-1-5-21-2872745919-2748461613-2989606286-1000\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 2228 set thread context of 2876	2228	db15b1f6acd7722f9daa00353bed077b95310a80de7a392ba6192c5774e30c62.exe	30
PID 1648 set thread context of 1592	1648	csrsll.exe	35
PID 1648 set thread context of 1000	1648	csrsll.exe	36

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2228-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2228-26-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2228-89-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2228-90-0x0000000002800000-0x0000000002853000-memory.dmp	upx
behavioral1/memory/2876-93-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2876-99-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2876-95-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2876-106-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2876-104-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2228-103-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2876-102-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/files/0x0004000000012000-131.dat	upx
behavioral1/memory/2876-151-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1648-209-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1000-246-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/1592-241-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1648-252-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2876-256-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1592-257-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1000-260-0x0000000000400000-0x0000000000414000-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	db15b1f6acd7722f9daa00353bed077b95310a80de7a392ba6192c5774e30c62.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	db15b1f6acd7722f9daa00353bed077b95310a80de7a392ba6192c5774e30c62.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	1592	csrsll.exe
Token: SeDebugPrivilege	1592	csrsll.exe
Token: SeDebugPrivilege	1592	csrsll.exe
Token: SeDebugPrivilege	1592	csrsll.exe
Token: SeDebugPrivilege	1592	csrsll.exe
Token: SeDebugPrivilege	1592	csrsll.exe
Token: SeDebugPrivilege	1592	csrsll.exe
Token: SeDebugPrivilege	1592	csrsll.exe
Token: SeDebugPrivilege	1592	csrsll.exe
Token: SeDebugPrivilege	1592	csrsll.exe
Token: SeDebugPrivilege	1592	csrsll.exe
Token: SeDebugPrivilege	1592	csrsll.exe
Token: SeDebugPrivilege	1592	csrsll.exe
Token: SeDebugPrivilege	1592	csrsll.exe
Token: SeDebugPrivilege	1592	csrsll.exe
Token: SeDebugPrivilege	1592	csrsll.exe
Token: SeDebugPrivilege	1592	csrsll.exe
Token: SeDebugPrivilege	1592	csrsll.exe
Token: SeDebugPrivilege	1592	csrsll.exe
Token: SeDebugPrivilege	1592	csrsll.exe
Token: SeDebugPrivilege	1592	csrsll.exe
Token: SeDebugPrivilege	1592	csrsll.exe
Token: SeDebugPrivilege	1592	csrsll.exe
Token: SeDebugPrivilege	1592	csrsll.exe
Token: SeDebugPrivilege	1592	csrsll.exe
Token: SeDebugPrivilege	1592	csrsll.exe
Token: SeDebugPrivilege	1592	csrsll.exe
Token: SeDebugPrivilege	1592	csrsll.exe
Token: SeDebugPrivilege	1592	csrsll.exe
Token: SeDebugPrivilege	1592	csrsll.exe
Token: SeDebugPrivilege	1592	csrsll.exe
Token: SeDebugPrivilege	1592	csrsll.exe
Token: SeDebugPrivilege	1592	csrsll.exe
Token: SeDebugPrivilege	1592	csrsll.exe
Token: SeDebugPrivilege	1592	csrsll.exe
Token: SeDebugPrivilege	1592	csrsll.exe
Token: SeDebugPrivilege	1592	csrsll.exe
Token: SeDebugPrivilege	1592	csrsll.exe
Token: SeDebugPrivilege	1592	csrsll.exe
Token: SeDebugPrivilege	1592	csrsll.exe
Token: SeDebugPrivilege	1592	csrsll.exe
Token: SeDebugPrivilege	1592	csrsll.exe
Token: SeDebugPrivilege	1592	csrsll.exe
Token: SeDebugPrivilege	1592	csrsll.exe
Token: SeDebugPrivilege	1592	csrsll.exe
Token: SeDebugPrivilege	1592	csrsll.exe
Token: SeDebugPrivilege	1592	csrsll.exe
Token: SeDebugPrivilege	1592	csrsll.exe
Token: SeDebugPrivilege	1592	csrsll.exe
Token: SeDebugPrivilege	1592	csrsll.exe
Token: SeDebugPrivilege	1592	csrsll.exe
Token: SeDebugPrivilege	1592	csrsll.exe
Token: SeDebugPrivilege	1592	csrsll.exe
Token: SeDebugPrivilege	1592	csrsll.exe
Token: SeDebugPrivilege	1592	csrsll.exe
Token: SeDebugPrivilege	1592	csrsll.exe
Token: SeDebugPrivilege	1592	csrsll.exe
Token: SeDebugPrivilege	1592	csrsll.exe
Token: SeDebugPrivilege	1592	csrsll.exe
Token: SeDebugPrivilege	1592	csrsll.exe
Token: SeDebugPrivilege	1592	csrsll.exe
Token: SeDebugPrivilege	1592	csrsll.exe
Token: SeDebugPrivilege	1592	csrsll.exe
Token: SeDebugPrivilege	1592	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2228	db15b1f6acd7722f9daa00353bed077b95310a80de7a392ba6192c5774e30c62.exe
2876	db15b1f6acd7722f9daa00353bed077b95310a80de7a392ba6192c5774e30c62.exe
1648	csrsll.exe
1592	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2228 wrote to memory of 2876	2228	db15b1f6acd7722f9daa00353bed077b95310a80de7a392ba6192c5774e30c62.exe	30
PID 2228 wrote to memory of 2876	2228	db15b1f6acd7722f9daa00353bed077b95310a80de7a392ba6192c5774e30c62.exe	30
PID 2228 wrote to memory of 2876	2228	db15b1f6acd7722f9daa00353bed077b95310a80de7a392ba6192c5774e30c62.exe	30
PID 2228 wrote to memory of 2876	2228	db15b1f6acd7722f9daa00353bed077b95310a80de7a392ba6192c5774e30c62.exe	30
PID 2228 wrote to memory of 2876	2228	db15b1f6acd7722f9daa00353bed077b95310a80de7a392ba6192c5774e30c62.exe	30
PID 2228 wrote to memory of 2876	2228	db15b1f6acd7722f9daa00353bed077b95310a80de7a392ba6192c5774e30c62.exe	30
PID 2228 wrote to memory of 2876	2228	db15b1f6acd7722f9daa00353bed077b95310a80de7a392ba6192c5774e30c62.exe	30
PID 2228 wrote to memory of 2876	2228	db15b1f6acd7722f9daa00353bed077b95310a80de7a392ba6192c5774e30c62.exe	30
PID 2876 wrote to memory of 1968	2876	db15b1f6acd7722f9daa00353bed077b95310a80de7a392ba6192c5774e30c62.exe	31
PID 2876 wrote to memory of 1968	2876	db15b1f6acd7722f9daa00353bed077b95310a80de7a392ba6192c5774e30c62.exe	31
PID 2876 wrote to memory of 1968	2876	db15b1f6acd7722f9daa00353bed077b95310a80de7a392ba6192c5774e30c62.exe	31
PID 2876 wrote to memory of 1968	2876	db15b1f6acd7722f9daa00353bed077b95310a80de7a392ba6192c5774e30c62.exe	31
PID 1968 wrote to memory of 1756	1968	cmd.exe	33
PID 1968 wrote to memory of 1756	1968	cmd.exe	33
PID 1968 wrote to memory of 1756	1968	cmd.exe	33
PID 1968 wrote to memory of 1756	1968	cmd.exe	33
PID 2876 wrote to memory of 1648	2876	db15b1f6acd7722f9daa00353bed077b95310a80de7a392ba6192c5774e30c62.exe	34
PID 2876 wrote to memory of 1648	2876	db15b1f6acd7722f9daa00353bed077b95310a80de7a392ba6192c5774e30c62.exe	34
PID 2876 wrote to memory of 1648	2876	db15b1f6acd7722f9daa00353bed077b95310a80de7a392ba6192c5774e30c62.exe	34
PID 2876 wrote to memory of 1648	2876	db15b1f6acd7722f9daa00353bed077b95310a80de7a392ba6192c5774e30c62.exe	34
PID 1648 wrote to memory of 1592	1648	csrsll.exe	35
PID 1648 wrote to memory of 1592	1648	csrsll.exe	35
PID 1648 wrote to memory of 1592	1648	csrsll.exe	35
PID 1648 wrote to memory of 1592	1648	csrsll.exe	35
PID 1648 wrote to memory of 1592	1648	csrsll.exe	35
PID 1648 wrote to memory of 1592	1648	csrsll.exe	35
PID 1648 wrote to memory of 1592	1648	csrsll.exe	35
PID 1648 wrote to memory of 1592	1648	csrsll.exe	35
PID 1648 wrote to memory of 1000	1648	csrsll.exe	36
PID 1648 wrote to memory of 1000	1648	csrsll.exe	36
PID 1648 wrote to memory of 1000	1648	csrsll.exe	36
PID 1648 wrote to memory of 1000	1648	csrsll.exe	36
PID 1648 wrote to memory of 1000	1648	csrsll.exe	36
PID 1648 wrote to memory of 1000	1648	csrsll.exe	36
PID 1648 wrote to memory of 1000	1648	csrsll.exe	36
PID 1648 wrote to memory of 1000	1648	csrsll.exe	36

C:\Users\Admin\AppData\Local\Temp\db15b1f6acd7722f9daa00353bed077b95310a80de7a392ba6192c5774e30c62.exe
"C:\Users\Admin\AppData\Local\Temp\db15b1f6acd7722f9daa00353bed077b95310a80de7a392ba6192c5774e30c62.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2228
- C:\Users\Admin\AppData\Local\Temp\db15b1f6acd7722f9daa00353bed077b95310a80de7a392ba6192c5774e30c62.exe
  "C:\Users\Admin\AppData\Local\Temp\db15b1f6acd7722f9daa00353bed077b95310a80de7a392ba6192c5774e30c62.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2876
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\BVTSW.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1968
  - - 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:1756
- - 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:1648
  - - 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:1592
  - - 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:1000

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

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\BVTSW.bat

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
b640f5414e7b83e77ec559390e1d2504

SHA1
41b8882f0342aca8d2202927398292f5ba8900a3

SHA256
de812d147efe9cbeda701e94c8e59395fe0e00db0426b323dea19d38f5b4064b

SHA512
c512e6b523fffd594b16f83db44c202b3f487a42fce1c0dcfd02b31cd1355cafc78917023e54a70f6246c51f4bf68d564a66c935b808dcefeb27bffd58ab1ccd

Download Submit
memory/1000-260-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1000-246-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1592-257-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1592-241-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1648-252-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1648-164-0x0000000000260000-0x0000000000261000-memory.dmp

Filesize
4KB

Download
memory/1648-175-0x00000000002C0000-0x00000000002C1000-memory.dmp

Filesize
4KB

Download
memory/1648-209-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1648-154-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download
memory/2228-89-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2228-71-0x00000000003C0000-0x00000000003C1000-memory.dmp

Filesize
4KB

Download
memory/2228-3-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2228-5-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2228-16-0x0000000000290000-0x0000000000291000-memory.dmp

Filesize
4KB

Download
memory/2228-14-0x0000000000404000-0x0000000000405000-memory.dmp

Filesize
4KB

Download
memory/2228-26-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2228-61-0x00000000003A0000-0x00000000003A1000-memory.dmp

Filesize
4KB

Download
memory/2228-79-0x00000000003E0000-0x00000000003E2000-memory.dmp

Filesize
8KB

Download
memory/2228-103-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2228-41-0x00000000002D0000-0x00000000002D1000-memory.dmp

Filesize
4KB

Download
memory/2228-90-0x0000000002800000-0x0000000002853000-memory.dmp

Filesize
332KB

Download
memory/2228-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2228-29-0x00000000002B0000-0x00000000002B1000-memory.dmp

Filesize
4KB

Download
memory/2876-104-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2876-95-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2876-151-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2876-146-0x00000000034B0000-0x0000000003503000-memory.dmp

Filesize
332KB

Download
memory/2876-147-0x00000000034B0000-0x0000000003503000-memory.dmp

Filesize
332KB

Download
memory/2876-102-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2876-106-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2876-145-0x00000000034B0000-0x0000000003503000-memory.dmp

Filesize
332KB

Download
memory/2876-97-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2876-239-0x00000000034B0000-0x0000000003503000-memory.dmp

Filesize
332KB

Download
memory/2876-238-0x00000000034B0000-0x0000000003503000-memory.dmp

Filesize
332KB

Download
memory/2876-99-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2876-256-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2876-93-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2876-91-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads