modiloader | 7853d7f6e117ba9b88f07e412b51a6e791f935a322b7c36dd584f3e5f59b5856

Analysis

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

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
13/09/2024, 13:17

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General

Target

ac533c173cdda6f4aca63272eb21ef00N.exe
Size

90KB
MD5

ac533c173cdda6f4aca63272eb21ef00
SHA1

ff725870cf0232b72f2a72383af2a2cd868f38a1
SHA256

7853d7f6e117ba9b88f07e412b51a6e791f935a322b7c36dd584f3e5f59b5856
SHA512

a811c5868ba386755bfc358872a92a0baf3cd032a9b0bc26bd80ca413f39aaaa0f1279867dca0722d9ef45ea10dbb58114823c71cbd13291e2993bfb290e166e
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 2 IoCs

resource	yara_rule
behavioral1/memory/824-252-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral1/memory/824-259-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
2512	csrsll.exe
300	csrsll.exe
824	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
2596	ac533c173cdda6f4aca63272eb21ef00N.exe
2596	ac533c173cdda6f4aca63272eb21ef00N.exe
2596	ac533c173cdda6f4aca63272eb21ef00N.exe
2596	ac533c173cdda6f4aca63272eb21ef00N.exe
2596	ac533c173cdda6f4aca63272eb21ef00N.exe

UPX packed file 22 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1792-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2596-94-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2596-92-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1792-89-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1792-26-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2596-98-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2596-106-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2596-102-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2596-101-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2596-100-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1792-107-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/files/0x0005000000004ed7-130.dat	upx
behavioral1/memory/2596-145-0x00000000031A0000-0x00000000031F3000-memory.dmp	upx
behavioral1/memory/2512-150-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2596-152-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2512-212-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2512-253-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2596-257-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/824-252-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/300-251-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/300-258-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/824-259-0x0000000000400000-0x0000000000414000-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-1-5-21-4177215427-74451935-3209572229-1000\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 1792 set thread context of 2596	1792	ac533c173cdda6f4aca63272eb21ef00N.exe	31
PID 2512 set thread context of 300	2512	csrsll.exe	36
PID 2512 set thread context of 824	2512	csrsll.exe	37

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	ac533c173cdda6f4aca63272eb21ef00N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ac533c173cdda6f4aca63272eb21ef00N.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	300	csrsll.exe
Token: SeDebugPrivilege	300	csrsll.exe
Token: SeDebugPrivilege	300	csrsll.exe
Token: SeDebugPrivilege	300	csrsll.exe
Token: SeDebugPrivilege	300	csrsll.exe
Token: SeDebugPrivilege	300	csrsll.exe
Token: SeDebugPrivilege	300	csrsll.exe
Token: SeDebugPrivilege	300	csrsll.exe
Token: SeDebugPrivilege	300	csrsll.exe
Token: SeDebugPrivilege	300	csrsll.exe
Token: SeDebugPrivilege	300	csrsll.exe
Token: SeDebugPrivilege	300	csrsll.exe
Token: SeDebugPrivilege	300	csrsll.exe
Token: SeDebugPrivilege	300	csrsll.exe
Token: SeDebugPrivilege	300	csrsll.exe
Token: SeDebugPrivilege	300	csrsll.exe
Token: SeDebugPrivilege	300	csrsll.exe
Token: SeDebugPrivilege	300	csrsll.exe
Token: SeDebugPrivilege	300	csrsll.exe
Token: SeDebugPrivilege	300	csrsll.exe
Token: SeDebugPrivilege	300	csrsll.exe
Token: SeDebugPrivilege	300	csrsll.exe
Token: SeDebugPrivilege	300	csrsll.exe
Token: SeDebugPrivilege	300	csrsll.exe
Token: SeDebugPrivilege	300	csrsll.exe
Token: SeDebugPrivilege	300	csrsll.exe
Token: SeDebugPrivilege	300	csrsll.exe
Token: SeDebugPrivilege	300	csrsll.exe
Token: SeDebugPrivilege	300	csrsll.exe
Token: SeDebugPrivilege	300	csrsll.exe
Token: SeDebugPrivilege	300	csrsll.exe
Token: SeDebugPrivilege	300	csrsll.exe
Token: SeDebugPrivilege	300	csrsll.exe
Token: SeDebugPrivilege	300	csrsll.exe
Token: SeDebugPrivilege	300	csrsll.exe
Token: SeDebugPrivilege	300	csrsll.exe
Token: SeDebugPrivilege	300	csrsll.exe
Token: SeDebugPrivilege	300	csrsll.exe
Token: SeDebugPrivilege	300	csrsll.exe
Token: SeDebugPrivilege	300	csrsll.exe
Token: SeDebugPrivilege	300	csrsll.exe
Token: SeDebugPrivilege	300	csrsll.exe
Token: SeDebugPrivilege	300	csrsll.exe
Token: SeDebugPrivilege	300	csrsll.exe
Token: SeDebugPrivilege	300	csrsll.exe
Token: SeDebugPrivilege	300	csrsll.exe
Token: SeDebugPrivilege	300	csrsll.exe
Token: SeDebugPrivilege	300	csrsll.exe
Token: SeDebugPrivilege	300	csrsll.exe
Token: SeDebugPrivilege	300	csrsll.exe
Token: SeDebugPrivilege	300	csrsll.exe
Token: SeDebugPrivilege	300	csrsll.exe
Token: SeDebugPrivilege	300	csrsll.exe
Token: SeDebugPrivilege	300	csrsll.exe
Token: SeDebugPrivilege	300	csrsll.exe
Token: SeDebugPrivilege	300	csrsll.exe
Token: SeDebugPrivilege	300	csrsll.exe
Token: SeDebugPrivilege	300	csrsll.exe
Token: SeDebugPrivilege	300	csrsll.exe
Token: SeDebugPrivilege	300	csrsll.exe
Token: SeDebugPrivilege	300	csrsll.exe
Token: SeDebugPrivilege	300	csrsll.exe
Token: SeDebugPrivilege	300	csrsll.exe
Token: SeDebugPrivilege	300	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1792	ac533c173cdda6f4aca63272eb21ef00N.exe
2596	ac533c173cdda6f4aca63272eb21ef00N.exe
2512	csrsll.exe
300	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 1792 wrote to memory of 2596	1792	ac533c173cdda6f4aca63272eb21ef00N.exe	31
PID 1792 wrote to memory of 2596	1792	ac533c173cdda6f4aca63272eb21ef00N.exe	31
PID 1792 wrote to memory of 2596	1792	ac533c173cdda6f4aca63272eb21ef00N.exe	31
PID 1792 wrote to memory of 2596	1792	ac533c173cdda6f4aca63272eb21ef00N.exe	31
PID 1792 wrote to memory of 2596	1792	ac533c173cdda6f4aca63272eb21ef00N.exe	31
PID 1792 wrote to memory of 2596	1792	ac533c173cdda6f4aca63272eb21ef00N.exe	31
PID 1792 wrote to memory of 2596	1792	ac533c173cdda6f4aca63272eb21ef00N.exe	31
PID 1792 wrote to memory of 2596	1792	ac533c173cdda6f4aca63272eb21ef00N.exe	31
PID 2596 wrote to memory of 1952	2596	ac533c173cdda6f4aca63272eb21ef00N.exe	32
PID 2596 wrote to memory of 1952	2596	ac533c173cdda6f4aca63272eb21ef00N.exe	32
PID 2596 wrote to memory of 1952	2596	ac533c173cdda6f4aca63272eb21ef00N.exe	32
PID 2596 wrote to memory of 1952	2596	ac533c173cdda6f4aca63272eb21ef00N.exe	32
PID 1952 wrote to memory of 1852	1952	cmd.exe	34
PID 1952 wrote to memory of 1852	1952	cmd.exe	34
PID 1952 wrote to memory of 1852	1952	cmd.exe	34
PID 1952 wrote to memory of 1852	1952	cmd.exe	34
PID 2596 wrote to memory of 2512	2596	ac533c173cdda6f4aca63272eb21ef00N.exe	35
PID 2596 wrote to memory of 2512	2596	ac533c173cdda6f4aca63272eb21ef00N.exe	35
PID 2596 wrote to memory of 2512	2596	ac533c173cdda6f4aca63272eb21ef00N.exe	35
PID 2596 wrote to memory of 2512	2596	ac533c173cdda6f4aca63272eb21ef00N.exe	35
PID 2512 wrote to memory of 300	2512	csrsll.exe	36
PID 2512 wrote to memory of 300	2512	csrsll.exe	36
PID 2512 wrote to memory of 300	2512	csrsll.exe	36
PID 2512 wrote to memory of 300	2512	csrsll.exe	36
PID 2512 wrote to memory of 300	2512	csrsll.exe	36
PID 2512 wrote to memory of 300	2512	csrsll.exe	36
PID 2512 wrote to memory of 300	2512	csrsll.exe	36
PID 2512 wrote to memory of 300	2512	csrsll.exe	36
PID 2512 wrote to memory of 824	2512	csrsll.exe	37
PID 2512 wrote to memory of 824	2512	csrsll.exe	37
PID 2512 wrote to memory of 824	2512	csrsll.exe	37
PID 2512 wrote to memory of 824	2512	csrsll.exe	37
PID 2512 wrote to memory of 824	2512	csrsll.exe	37
PID 2512 wrote to memory of 824	2512	csrsll.exe	37
PID 2512 wrote to memory of 824	2512	csrsll.exe	37
PID 2512 wrote to memory of 824	2512	csrsll.exe	37

C:\Users\Admin\AppData\Local\Temp\ac533c173cdda6f4aca63272eb21ef00N.exe
"C:\Users\Admin\AppData\Local\Temp\ac533c173cdda6f4aca63272eb21ef00N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1792
- C:\Users\Admin\AppData\Local\Temp\ac533c173cdda6f4aca63272eb21ef00N.exe
  "C:\Users\Admin\AppData\Local\Temp\ac533c173cdda6f4aca63272eb21ef00N.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2596
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\TKUQL.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1952
  - - 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:1852
- - 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:2512
  - - 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:300
  - - 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:824

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\TKUQL.bat

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
3e0da49902db10b0e19ac2a45fc8871e

SHA1
2cbc50a2c3ac480dc6fc2135b597e2baa556a5c3

SHA256
905e47fc464f71ae45610b705494c5d3927063d4b8eebdb867f3da8e911bfbb9

SHA512
1682f590d2c45c30a8da874be615d9f85107141d9967befaa444743b516ee561624caf8d31c9f7c4b7449a670cd966488b21746d03fef9ef33f7180d1a19c97b

Download Submit
memory/300-258-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/300-251-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/824-259-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/824-252-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1792-107-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1792-25-0x0000000000404000-0x0000000000405000-memory.dmp

Filesize
4KB

Download
memory/1792-3-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/1792-16-0x0000000000250000-0x0000000000251000-memory.dmp

Filesize
4KB

Download
memory/1792-71-0x00000000003F0000-0x00000000003F1000-memory.dmp

Filesize
4KB

Download
memory/1792-61-0x00000000003D0000-0x00000000003D1000-memory.dmp

Filesize
4KB

Download
memory/1792-89-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1792-29-0x0000000000270000-0x0000000000271000-memory.dmp

Filesize
4KB

Download
memory/1792-26-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1792-79-0x0000000000550000-0x0000000000552000-memory.dmp

Filesize
8KB

Download
memory/1792-5-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/1792-41-0x0000000000350000-0x0000000000351000-memory.dmp

Filesize
4KB

Download
memory/1792-103-0x0000000002700000-0x0000000002753000-memory.dmp

Filesize
332KB

Download
memory/1792-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2512-155-0x00000000003D0000-0x00000000003D1000-memory.dmp

Filesize
4KB

Download
memory/2512-165-0x00000000003F0000-0x00000000003F1000-memory.dmp

Filesize
4KB

Download
memory/2512-253-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2512-212-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2512-150-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2512-176-0x0000000000600000-0x0000000000601000-memory.dmp

Filesize
4KB

Download
memory/2596-98-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2596-146-0x00000000031A0000-0x00000000031F3000-memory.dmp

Filesize
332KB

Download
memory/2596-145-0x00000000031A0000-0x00000000031F3000-memory.dmp

Filesize
332KB

Download
memory/2596-147-0x00000000031A0000-0x00000000031F3000-memory.dmp

Filesize
332KB

Download
memory/2596-152-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2596-148-0x00000000031A0000-0x00000000031F3000-memory.dmp

Filesize
332KB

Download
memory/2596-96-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2596-100-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2596-101-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2596-255-0x00000000031A0000-0x00000000031F3000-memory.dmp

Filesize
332KB

Download
memory/2596-254-0x00000000031A0000-0x00000000031F3000-memory.dmp

Filesize
332KB

Download
memory/2596-102-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2596-257-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2596-106-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2596-94-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2596-250-0x00000000031A0000-0x00000000031F3000-memory.dmp

Filesize
332KB

Download
memory/2596-90-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2596-92-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads