modiloader | b8836b00e5dbcb1ef79323ac0c14943d65e072821cac95166e004adfbddcc07d

Analysis

max time kernel
149s
max time network
118s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
26-12-2024 10:25

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General

Target

b8836b00e5dbcb1ef79323ac0c14943d65e072821cac95166e004adfbddcc07d.exe
Size

90KB
MD5

01c962d6dc135f2f2de6390971268b45
SHA1

3795c787eb5fb0e6d01bbc9a944ae2e44a1a5b5e
SHA256

b8836b00e5dbcb1ef79323ac0c14943d65e072821cac95166e004adfbddcc07d
SHA512

babd5393b69d65ab6251bb5a801d9079492f51c7ae594939b38cf61501542cd5f932d95bb165bf7262e126ee71731ee7b942e04a3894dd91861a833f98dbb69e
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDm: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/1152-260-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
2548	csrsll.exe
2180	csrsll.exe
1152	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
2824	b8836b00e5dbcb1ef79323ac0c14943d65e072821cac95166e004adfbddcc07d.exe
2824	b8836b00e5dbcb1ef79323ac0c14943d65e072821cac95166e004adfbddcc07d.exe
2824	b8836b00e5dbcb1ef79323ac0c14943d65e072821cac95166e004adfbddcc07d.exe
2824	b8836b00e5dbcb1ef79323ac0c14943d65e072821cac95166e004adfbddcc07d.exe
2824	b8836b00e5dbcb1ef79323ac0c14943d65e072821cac95166e004adfbddcc07d.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-1-5-21-1163522206-1469769407-485553996-1000\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 2092 set thread context of 2824	2092	b8836b00e5dbcb1ef79323ac0c14943d65e072821cac95166e004adfbddcc07d.exe	31
PID 2548 set thread context of 2180	2548	csrsll.exe	36
PID 2548 set thread context of 1152	2548	csrsll.exe	37

UPX packed file 21 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2092-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2092-92-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2092-89-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2092-82-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2824-97-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2824-95-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2092-79-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2092-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2824-102-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2092-106-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2824-105-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2824-107-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2824-109-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/files/0x000a000000016650-134.dat	upx
behavioral1/memory/2824-154-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2548-221-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2548-249-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1152-248-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/2824-255-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2180-259-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1152-260-0x0000000000400000-0x0000000000414000-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	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b8836b00e5dbcb1ef79323ac0c14943d65e072821cac95166e004adfbddcc07d.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b8836b00e5dbcb1ef79323ac0c14943d65e072821cac95166e004adfbddcc07d.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

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2180	csrsll.exe
Token: SeDebugPrivilege	2180	csrsll.exe
Token: SeDebugPrivilege	2180	csrsll.exe
Token: SeDebugPrivilege	2180	csrsll.exe
Token: SeDebugPrivilege	2180	csrsll.exe
Token: SeDebugPrivilege	2180	csrsll.exe
Token: SeDebugPrivilege	2180	csrsll.exe
Token: SeDebugPrivilege	2180	csrsll.exe
Token: SeDebugPrivilege	2180	csrsll.exe
Token: SeDebugPrivilege	2180	csrsll.exe
Token: SeDebugPrivilege	2180	csrsll.exe
Token: SeDebugPrivilege	2180	csrsll.exe
Token: SeDebugPrivilege	2180	csrsll.exe
Token: SeDebugPrivilege	2180	csrsll.exe
Token: SeDebugPrivilege	2180	csrsll.exe
Token: SeDebugPrivilege	2180	csrsll.exe
Token: SeDebugPrivilege	2180	csrsll.exe
Token: SeDebugPrivilege	2180	csrsll.exe
Token: SeDebugPrivilege	2180	csrsll.exe
Token: SeDebugPrivilege	2180	csrsll.exe
Token: SeDebugPrivilege	2180	csrsll.exe
Token: SeDebugPrivilege	2180	csrsll.exe
Token: SeDebugPrivilege	2180	csrsll.exe
Token: SeDebugPrivilege	2180	csrsll.exe
Token: SeDebugPrivilege	2180	csrsll.exe
Token: SeDebugPrivilege	2180	csrsll.exe
Token: SeDebugPrivilege	2180	csrsll.exe
Token: SeDebugPrivilege	2180	csrsll.exe
Token: SeDebugPrivilege	2180	csrsll.exe
Token: SeDebugPrivilege	2180	csrsll.exe
Token: SeDebugPrivilege	2180	csrsll.exe
Token: SeDebugPrivilege	2180	csrsll.exe
Token: SeDebugPrivilege	2180	csrsll.exe
Token: SeDebugPrivilege	2180	csrsll.exe
Token: SeDebugPrivilege	2180	csrsll.exe
Token: SeDebugPrivilege	2180	csrsll.exe
Token: SeDebugPrivilege	2180	csrsll.exe
Token: SeDebugPrivilege	2180	csrsll.exe
Token: SeDebugPrivilege	2180	csrsll.exe
Token: SeDebugPrivilege	2180	csrsll.exe
Token: SeDebugPrivilege	2180	csrsll.exe
Token: SeDebugPrivilege	2180	csrsll.exe
Token: SeDebugPrivilege	2180	csrsll.exe
Token: SeDebugPrivilege	2180	csrsll.exe
Token: SeDebugPrivilege	2180	csrsll.exe
Token: SeDebugPrivilege	2180	csrsll.exe
Token: SeDebugPrivilege	2180	csrsll.exe
Token: SeDebugPrivilege	2180	csrsll.exe
Token: SeDebugPrivilege	2180	csrsll.exe
Token: SeDebugPrivilege	2180	csrsll.exe
Token: SeDebugPrivilege	2180	csrsll.exe
Token: SeDebugPrivilege	2180	csrsll.exe
Token: SeDebugPrivilege	2180	csrsll.exe
Token: SeDebugPrivilege	2180	csrsll.exe
Token: SeDebugPrivilege	2180	csrsll.exe
Token: SeDebugPrivilege	2180	csrsll.exe
Token: SeDebugPrivilege	2180	csrsll.exe
Token: SeDebugPrivilege	2180	csrsll.exe
Token: SeDebugPrivilege	2180	csrsll.exe
Token: SeDebugPrivilege	2180	csrsll.exe
Token: SeDebugPrivilege	2180	csrsll.exe
Token: SeDebugPrivilege	2180	csrsll.exe
Token: SeDebugPrivilege	2180	csrsll.exe
Token: SeDebugPrivilege	2180	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2092	b8836b00e5dbcb1ef79323ac0c14943d65e072821cac95166e004adfbddcc07d.exe
2824	b8836b00e5dbcb1ef79323ac0c14943d65e072821cac95166e004adfbddcc07d.exe
2548	csrsll.exe
2180	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2092 wrote to memory of 2824	2092	b8836b00e5dbcb1ef79323ac0c14943d65e072821cac95166e004adfbddcc07d.exe	31
PID 2092 wrote to memory of 2824	2092	b8836b00e5dbcb1ef79323ac0c14943d65e072821cac95166e004adfbddcc07d.exe	31
PID 2092 wrote to memory of 2824	2092	b8836b00e5dbcb1ef79323ac0c14943d65e072821cac95166e004adfbddcc07d.exe	31
PID 2092 wrote to memory of 2824	2092	b8836b00e5dbcb1ef79323ac0c14943d65e072821cac95166e004adfbddcc07d.exe	31
PID 2092 wrote to memory of 2824	2092	b8836b00e5dbcb1ef79323ac0c14943d65e072821cac95166e004adfbddcc07d.exe	31
PID 2092 wrote to memory of 2824	2092	b8836b00e5dbcb1ef79323ac0c14943d65e072821cac95166e004adfbddcc07d.exe	31
PID 2092 wrote to memory of 2824	2092	b8836b00e5dbcb1ef79323ac0c14943d65e072821cac95166e004adfbddcc07d.exe	31
PID 2092 wrote to memory of 2824	2092	b8836b00e5dbcb1ef79323ac0c14943d65e072821cac95166e004adfbddcc07d.exe	31
PID 2824 wrote to memory of 1860	2824	b8836b00e5dbcb1ef79323ac0c14943d65e072821cac95166e004adfbddcc07d.exe	32
PID 2824 wrote to memory of 1860	2824	b8836b00e5dbcb1ef79323ac0c14943d65e072821cac95166e004adfbddcc07d.exe	32
PID 2824 wrote to memory of 1860	2824	b8836b00e5dbcb1ef79323ac0c14943d65e072821cac95166e004adfbddcc07d.exe	32
PID 2824 wrote to memory of 1860	2824	b8836b00e5dbcb1ef79323ac0c14943d65e072821cac95166e004adfbddcc07d.exe	32
PID 1860 wrote to memory of 1916	1860	cmd.exe	34
PID 1860 wrote to memory of 1916	1860	cmd.exe	34
PID 1860 wrote to memory of 1916	1860	cmd.exe	34
PID 1860 wrote to memory of 1916	1860	cmd.exe	34
PID 2824 wrote to memory of 2548	2824	b8836b00e5dbcb1ef79323ac0c14943d65e072821cac95166e004adfbddcc07d.exe	35
PID 2824 wrote to memory of 2548	2824	b8836b00e5dbcb1ef79323ac0c14943d65e072821cac95166e004adfbddcc07d.exe	35
PID 2824 wrote to memory of 2548	2824	b8836b00e5dbcb1ef79323ac0c14943d65e072821cac95166e004adfbddcc07d.exe	35
PID 2824 wrote to memory of 2548	2824	b8836b00e5dbcb1ef79323ac0c14943d65e072821cac95166e004adfbddcc07d.exe	35
PID 2548 wrote to memory of 2180	2548	csrsll.exe	36
PID 2548 wrote to memory of 2180	2548	csrsll.exe	36
PID 2548 wrote to memory of 2180	2548	csrsll.exe	36
PID 2548 wrote to memory of 2180	2548	csrsll.exe	36
PID 2548 wrote to memory of 2180	2548	csrsll.exe	36
PID 2548 wrote to memory of 2180	2548	csrsll.exe	36
PID 2548 wrote to memory of 2180	2548	csrsll.exe	36
PID 2548 wrote to memory of 2180	2548	csrsll.exe	36
PID 2548 wrote to memory of 1152	2548	csrsll.exe	37
PID 2548 wrote to memory of 1152	2548	csrsll.exe	37
PID 2548 wrote to memory of 1152	2548	csrsll.exe	37
PID 2548 wrote to memory of 1152	2548	csrsll.exe	37
PID 2548 wrote to memory of 1152	2548	csrsll.exe	37
PID 2548 wrote to memory of 1152	2548	csrsll.exe	37
PID 2548 wrote to memory of 1152	2548	csrsll.exe	37
PID 2548 wrote to memory of 1152	2548	csrsll.exe	37

C:\Users\Admin\AppData\Local\Temp\b8836b00e5dbcb1ef79323ac0c14943d65e072821cac95166e004adfbddcc07d.exe
"C:\Users\Admin\AppData\Local\Temp\b8836b00e5dbcb1ef79323ac0c14943d65e072821cac95166e004adfbddcc07d.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2092
- C:\Users\Admin\AppData\Local\Temp\b8836b00e5dbcb1ef79323ac0c14943d65e072821cac95166e004adfbddcc07d.exe
  "C:\Users\Admin\AppData\Local\Temp\b8836b00e5dbcb1ef79323ac0c14943d65e072821cac95166e004adfbddcc07d.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2824
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\TUPNQ.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1860
  - - 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:1916
- - 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:2548
  - - 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:2180
  - - 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:1152

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

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Downloads

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

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
e6ba2f804a07b6ab8ddbeafbfe6ef70a

SHA1
2124f5b1377a275e856293cbb1fbd312e038f2d1

SHA256
a2767fb071d0ba525f22ca8486dd3901bf227bd1ae84b29f3c128c808510b14d

SHA512
587f0f96f247e6ac7421e0fadb05c560a559b3a87dfa1cdc15a32669055bdadacf504875c8698f30cea122aea0e0c9adf1e51a3f36b4a0446c59073ac0f697a8

Download Submit
memory/1152-260-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1152-248-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2092-80-0x0000000001C30000-0x0000000001C32000-memory.dmp

Filesize
8KB

Download
memory/2092-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2092-89-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2092-82-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2092-99-0x0000000002480000-0x00000000024D3000-memory.dmp

Filesize
332KB

Download
memory/2092-15-0x0000000000270000-0x0000000000271000-memory.dmp

Filesize
4KB

Download
memory/2092-5-0x00000000001D0000-0x00000000001D1000-memory.dmp

Filesize
4KB

Download
memory/2092-19-0x0000000000404000-0x0000000000405000-memory.dmp

Filesize
4KB

Download
memory/2092-3-0x00000000001D0000-0x00000000001D1000-memory.dmp

Filesize
4KB

Download
memory/2092-79-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2092-71-0x0000000001C10000-0x0000000001C11000-memory.dmp

Filesize
4KB

Download
memory/2092-61-0x00000000004C0000-0x00000000004C1000-memory.dmp

Filesize
4KB

Download
memory/2092-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2092-40-0x0000000000480000-0x0000000000481000-memory.dmp

Filesize
4KB

Download
memory/2092-28-0x0000000000460000-0x0000000000461000-memory.dmp

Filesize
4KB

Download
memory/2092-106-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2092-92-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2180-259-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2548-249-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2548-178-0x0000000000330000-0x0000000000331000-memory.dmp

Filesize
4KB

Download
memory/2548-221-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2548-167-0x0000000000310000-0x0000000000311000-memory.dmp

Filesize
4KB

Download
memory/2548-157-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2824-102-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2824-149-0x00000000030F0000-0x0000000003143000-memory.dmp

Filesize
332KB

Download
memory/2824-148-0x00000000030F0000-0x0000000003143000-memory.dmp

Filesize
332KB

Download
memory/2824-154-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2824-150-0x00000000030F0000-0x0000000003143000-memory.dmp

Filesize
332KB

Download
memory/2824-109-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2824-107-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2824-215-0x00000000030F0000-0x0000000003143000-memory.dmp

Filesize
332KB

Download
memory/2824-212-0x00000000030F0000-0x0000000003143000-memory.dmp

Filesize
332KB

Download
memory/2824-105-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2824-100-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2824-93-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2824-255-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2824-95-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2824-97-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads