modiloader | b0cbe845292553e2eab254e3d15e195202feae8d7387523c00614c96201d7615

Analysis

max time kernel
119s
max time network
120s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
22-12-2024 16:20

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General

Target

b0cbe845292553e2eab254e3d15e195202feae8d7387523c00614c96201d7615N.exe
Size

90KB
MD5

cb1becff5002b15f32beea855d721360
SHA1

12366be4398a48f42354adcbfdc233815967afe2
SHA256

b0cbe845292553e2eab254e3d15e195202feae8d7387523c00614c96201d7615
SHA512

c53d451b5cc25d67300fc7436ebc4caa5915190a2bc92cab1596d399ad54c091f02f3449475b7c230ad71bc2db2d267e87f08e4b31f8ce0556ca61c16c4bbedf
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDH: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 1 IoCs

resource	yara_rule
behavioral1/memory/1324-258-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
2248	csrsll.exe
584	csrsll.exe
1324	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
2488	b0cbe845292553e2eab254e3d15e195202feae8d7387523c00614c96201d7615N.exe
2488	b0cbe845292553e2eab254e3d15e195202feae8d7387523c00614c96201d7615N.exe
2488	b0cbe845292553e2eab254e3d15e195202feae8d7387523c00614c96201d7615N.exe
2488	b0cbe845292553e2eab254e3d15e195202feae8d7387523c00614c96201d7615N.exe
2488	b0cbe845292553e2eab254e3d15e195202feae8d7387523c00614c96201d7615N.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-1-5-21-3290804112-2823094203-3137964600-1000\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 2320 set thread context of 2488	2320	b0cbe845292553e2eab254e3d15e195202feae8d7387523c00614c96201d7615N.exe	28
PID 2248 set thread context of 584	2248	csrsll.exe	33
PID 2248 set thread context of 1324	2248	csrsll.exe	34

UPX packed file 22 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2320-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2320-26-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2320-89-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2488-95-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2488-93-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2488-99-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2320-105-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2488-106-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2488-103-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2488-101-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2488-145-0x0000000003140000-0x0000000003193000-memory.dmp	upx
behavioral1/memory/2248-147-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/files/0x0008000000012117-146.dat	upx
behavioral1/memory/2488-150-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2248-209-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2488-208-0x0000000003140000-0x0000000003193000-memory.dmp	upx
behavioral1/memory/584-231-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1324-244-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/2248-251-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2488-254-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/584-255-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1324-258-0x0000000000400000-0x0000000000414000-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	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	b0cbe845292553e2eab254e3d15e195202feae8d7387523c00614c96201d7615N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b0cbe845292553e2eab254e3d15e195202feae8d7387523c00614c96201d7615N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe
Token: SeDebugPrivilege	584	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2320	b0cbe845292553e2eab254e3d15e195202feae8d7387523c00614c96201d7615N.exe
2488	b0cbe845292553e2eab254e3d15e195202feae8d7387523c00614c96201d7615N.exe
2248	csrsll.exe
584	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2320 wrote to memory of 2488	2320	b0cbe845292553e2eab254e3d15e195202feae8d7387523c00614c96201d7615N.exe	28
PID 2320 wrote to memory of 2488	2320	b0cbe845292553e2eab254e3d15e195202feae8d7387523c00614c96201d7615N.exe	28
PID 2320 wrote to memory of 2488	2320	b0cbe845292553e2eab254e3d15e195202feae8d7387523c00614c96201d7615N.exe	28
PID 2320 wrote to memory of 2488	2320	b0cbe845292553e2eab254e3d15e195202feae8d7387523c00614c96201d7615N.exe	28
PID 2320 wrote to memory of 2488	2320	b0cbe845292553e2eab254e3d15e195202feae8d7387523c00614c96201d7615N.exe	28
PID 2320 wrote to memory of 2488	2320	b0cbe845292553e2eab254e3d15e195202feae8d7387523c00614c96201d7615N.exe	28
PID 2320 wrote to memory of 2488	2320	b0cbe845292553e2eab254e3d15e195202feae8d7387523c00614c96201d7615N.exe	28
PID 2320 wrote to memory of 2488	2320	b0cbe845292553e2eab254e3d15e195202feae8d7387523c00614c96201d7615N.exe	28
PID 2488 wrote to memory of 2808	2488	b0cbe845292553e2eab254e3d15e195202feae8d7387523c00614c96201d7615N.exe	29
PID 2488 wrote to memory of 2808	2488	b0cbe845292553e2eab254e3d15e195202feae8d7387523c00614c96201d7615N.exe	29
PID 2488 wrote to memory of 2808	2488	b0cbe845292553e2eab254e3d15e195202feae8d7387523c00614c96201d7615N.exe	29
PID 2488 wrote to memory of 2808	2488	b0cbe845292553e2eab254e3d15e195202feae8d7387523c00614c96201d7615N.exe	29
PID 2808 wrote to memory of 2916	2808	cmd.exe	31
PID 2808 wrote to memory of 2916	2808	cmd.exe	31
PID 2808 wrote to memory of 2916	2808	cmd.exe	31
PID 2808 wrote to memory of 2916	2808	cmd.exe	31
PID 2488 wrote to memory of 2248	2488	b0cbe845292553e2eab254e3d15e195202feae8d7387523c00614c96201d7615N.exe	32
PID 2488 wrote to memory of 2248	2488	b0cbe845292553e2eab254e3d15e195202feae8d7387523c00614c96201d7615N.exe	32
PID 2488 wrote to memory of 2248	2488	b0cbe845292553e2eab254e3d15e195202feae8d7387523c00614c96201d7615N.exe	32
PID 2488 wrote to memory of 2248	2488	b0cbe845292553e2eab254e3d15e195202feae8d7387523c00614c96201d7615N.exe	32
PID 2248 wrote to memory of 584	2248	csrsll.exe	33
PID 2248 wrote to memory of 584	2248	csrsll.exe	33
PID 2248 wrote to memory of 584	2248	csrsll.exe	33
PID 2248 wrote to memory of 584	2248	csrsll.exe	33
PID 2248 wrote to memory of 584	2248	csrsll.exe	33
PID 2248 wrote to memory of 584	2248	csrsll.exe	33
PID 2248 wrote to memory of 584	2248	csrsll.exe	33
PID 2248 wrote to memory of 584	2248	csrsll.exe	33
PID 2248 wrote to memory of 1324	2248	csrsll.exe	34
PID 2248 wrote to memory of 1324	2248	csrsll.exe	34
PID 2248 wrote to memory of 1324	2248	csrsll.exe	34
PID 2248 wrote to memory of 1324	2248	csrsll.exe	34
PID 2248 wrote to memory of 1324	2248	csrsll.exe	34
PID 2248 wrote to memory of 1324	2248	csrsll.exe	34
PID 2248 wrote to memory of 1324	2248	csrsll.exe	34
PID 2248 wrote to memory of 1324	2248	csrsll.exe	34

C:\Users\Admin\AppData\Local\Temp\b0cbe845292553e2eab254e3d15e195202feae8d7387523c00614c96201d7615N.exe
"C:\Users\Admin\AppData\Local\Temp\b0cbe845292553e2eab254e3d15e195202feae8d7387523c00614c96201d7615N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2320
- C:\Users\Admin\AppData\Local\Temp\b0cbe845292553e2eab254e3d15e195202feae8d7387523c00614c96201d7615N.exe
  "C:\Users\Admin\AppData\Local\Temp\b0cbe845292553e2eab254e3d15e195202feae8d7387523c00614c96201d7615N.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2488
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\EJYWF.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2808
  - - 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:2916
- - 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:2248
  - - 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:584
  - - 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:1324

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\EJYWF.bat

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
b772cfe5f2b6581bda56cba43afa95fb

SHA1
b9922b20dd65b6dd390e5576c621ebcb20f6526f

SHA256
bb860d90b4645b062631c262ee3d2438f9406e1a8cea6135709712e60ce80c7f

SHA512
fce448d5a49be8e2e4207365dfe4b66a2229b958c5cf349fe957317c5a2fedb1cdb2b6fe391d17a5a37ba22d29b8f01697d84867e63f5ab8f873957131e8fa73

Download Submit
memory/584-255-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/584-231-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1324-258-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1324-244-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2248-251-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2248-163-0x00000000002A0000-0x00000000002A1000-memory.dmp

Filesize
4KB

Download
memory/2248-174-0x00000000002C0000-0x00000000002C1000-memory.dmp

Filesize
4KB

Download
memory/2248-209-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2248-153-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2248-147-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2320-89-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2320-29-0x0000000000280000-0x0000000000281000-memory.dmp

Filesize
4KB

Download
memory/2320-92-0x0000000000520000-0x0000000000573000-memory.dmp

Filesize
332KB

Download
memory/2320-5-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2320-3-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2320-16-0x0000000000260000-0x0000000000261000-memory.dmp

Filesize
4KB

Download
memory/2320-105-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2320-13-0x0000000000404000-0x0000000000405000-memory.dmp

Filesize
4KB

Download
memory/2320-26-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2320-41-0x00000000002A0000-0x00000000002A1000-memory.dmp

Filesize
4KB

Download
memory/2320-71-0x0000000000310000-0x0000000000311000-memory.dmp

Filesize
4KB

Download
memory/2320-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2320-61-0x00000000002F0000-0x00000000002F1000-memory.dmp

Filesize
4KB

Download
memory/2320-79-0x00000000003B0000-0x00000000003B2000-memory.dmp

Filesize
8KB

Download
memory/2488-150-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2488-145-0x0000000003140000-0x0000000003193000-memory.dmp

Filesize
332KB

Download
memory/2488-95-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2488-208-0x0000000003140000-0x0000000003193000-memory.dmp

Filesize
332KB

Download
memory/2488-101-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2488-93-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2488-103-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2488-106-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2488-99-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2488-254-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2488-97-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2488-90-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads