modiloader | c53a4d99db52c1fecd0c8c6199992bd143ba7ccddae3626db123cc699cbcb709

Analysis

max time kernel
119s
max time network
17s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
24-09-2024 16:37

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General

Target

c53a4d99db52c1fecd0c8c6199992bd143ba7ccddae3626db123cc699cbcb709N.exe
Size

90KB
MD5

78a30464282519eb00fa13138c3c2eb0
SHA1

55c7939916ab9cfc480f0b2595ea21464ed2509a
SHA256

c53a4d99db52c1fecd0c8c6199992bd143ba7ccddae3626db123cc699cbcb709
SHA512

d4f4ff3634a11ae3cc78c0a3f8486640e87cea9d6cd252f26bdb9e9d033b1d0c443881e6f249edca4d65eddac9e53be0fbacf7927c480e8c1a3f4c4b9079dff5
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 1 IoCs

resource	yara_rule
behavioral1/memory/1284-257-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
1688	csrsll.exe
1392	csrsll.exe
1284	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
2604	c53a4d99db52c1fecd0c8c6199992bd143ba7ccddae3626db123cc699cbcb709N.exe
2604	c53a4d99db52c1fecd0c8c6199992bd143ba7ccddae3626db123cc699cbcb709N.exe
2604	c53a4d99db52c1fecd0c8c6199992bd143ba7ccddae3626db123cc699cbcb709N.exe
2604	c53a4d99db52c1fecd0c8c6199992bd143ba7ccddae3626db123cc699cbcb709N.exe
2604	c53a4d99db52c1fecd0c8c6199992bd143ba7ccddae3626db123cc699cbcb709N.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-1-5-21-3533259084-2542256011-65585152-1000\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 2500 set thread context of 2604	2500	c53a4d99db52c1fecd0c8c6199992bd143ba7ccddae3626db123cc699cbcb709N.exe	31
PID 1688 set thread context of 1392	1688	csrsll.exe	36
PID 1688 set thread context of 1284	1688	csrsll.exe	37

UPX packed file 23 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2500-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2500-26-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2604-92-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2604-102-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2500-104-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2604-101-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2604-100-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2604-98-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2604-94-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2500-89-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/files/0x0009000000015d2e-137.dat	upx
behavioral1/memory/2604-131-0x00000000025F0000-0x0000000002643000-memory.dmp	upx
behavioral1/memory/1688-146-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2604-149-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2604-150-0x00000000025F0000-0x0000000002643000-memory.dmp	upx
behavioral1/memory/2604-151-0x00000000025F0000-0x0000000002643000-memory.dmp	upx
behavioral1/memory/1688-210-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1688-245-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1284-244-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/1688-250-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2604-254-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1284-257-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/1392-256-0x0000000000400000-0x000000000040B000-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	c53a4d99db52c1fecd0c8c6199992bd143ba7ccddae3626db123cc699cbcb709N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c53a4d99db52c1fecd0c8c6199992bd143ba7ccddae3626db123cc699cbcb709N.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	1392	csrsll.exe
Token: SeDebugPrivilege	1392	csrsll.exe
Token: SeDebugPrivilege	1392	csrsll.exe
Token: SeDebugPrivilege	1392	csrsll.exe
Token: SeDebugPrivilege	1392	csrsll.exe
Token: SeDebugPrivilege	1392	csrsll.exe
Token: SeDebugPrivilege	1392	csrsll.exe
Token: SeDebugPrivilege	1392	csrsll.exe
Token: SeDebugPrivilege	1392	csrsll.exe
Token: SeDebugPrivilege	1392	csrsll.exe
Token: SeDebugPrivilege	1392	csrsll.exe
Token: SeDebugPrivilege	1392	csrsll.exe
Token: SeDebugPrivilege	1392	csrsll.exe
Token: SeDebugPrivilege	1392	csrsll.exe
Token: SeDebugPrivilege	1392	csrsll.exe
Token: SeDebugPrivilege	1392	csrsll.exe
Token: SeDebugPrivilege	1392	csrsll.exe
Token: SeDebugPrivilege	1392	csrsll.exe
Token: SeDebugPrivilege	1392	csrsll.exe
Token: SeDebugPrivilege	1392	csrsll.exe
Token: SeDebugPrivilege	1392	csrsll.exe
Token: SeDebugPrivilege	1392	csrsll.exe
Token: SeDebugPrivilege	1392	csrsll.exe
Token: SeDebugPrivilege	1392	csrsll.exe
Token: SeDebugPrivilege	1392	csrsll.exe
Token: SeDebugPrivilege	1392	csrsll.exe
Token: SeDebugPrivilege	1392	csrsll.exe
Token: SeDebugPrivilege	1392	csrsll.exe
Token: SeDebugPrivilege	1392	csrsll.exe
Token: SeDebugPrivilege	1392	csrsll.exe
Token: SeDebugPrivilege	1392	csrsll.exe
Token: SeDebugPrivilege	1392	csrsll.exe
Token: SeDebugPrivilege	1392	csrsll.exe
Token: SeDebugPrivilege	1392	csrsll.exe
Token: SeDebugPrivilege	1392	csrsll.exe
Token: SeDebugPrivilege	1392	csrsll.exe
Token: SeDebugPrivilege	1392	csrsll.exe
Token: SeDebugPrivilege	1392	csrsll.exe
Token: SeDebugPrivilege	1392	csrsll.exe
Token: SeDebugPrivilege	1392	csrsll.exe
Token: SeDebugPrivilege	1392	csrsll.exe
Token: SeDebugPrivilege	1392	csrsll.exe
Token: SeDebugPrivilege	1392	csrsll.exe
Token: SeDebugPrivilege	1392	csrsll.exe
Token: SeDebugPrivilege	1392	csrsll.exe
Token: SeDebugPrivilege	1392	csrsll.exe
Token: SeDebugPrivilege	1392	csrsll.exe
Token: SeDebugPrivilege	1392	csrsll.exe
Token: SeDebugPrivilege	1392	csrsll.exe
Token: SeDebugPrivilege	1392	csrsll.exe
Token: SeDebugPrivilege	1392	csrsll.exe
Token: SeDebugPrivilege	1392	csrsll.exe
Token: SeDebugPrivilege	1392	csrsll.exe
Token: SeDebugPrivilege	1392	csrsll.exe
Token: SeDebugPrivilege	1392	csrsll.exe
Token: SeDebugPrivilege	1392	csrsll.exe
Token: SeDebugPrivilege	1392	csrsll.exe
Token: SeDebugPrivilege	1392	csrsll.exe
Token: SeDebugPrivilege	1392	csrsll.exe
Token: SeDebugPrivilege	1392	csrsll.exe
Token: SeDebugPrivilege	1392	csrsll.exe
Token: SeDebugPrivilege	1392	csrsll.exe
Token: SeDebugPrivilege	1392	csrsll.exe
Token: SeDebugPrivilege	1392	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2500	c53a4d99db52c1fecd0c8c6199992bd143ba7ccddae3626db123cc699cbcb709N.exe
2604	c53a4d99db52c1fecd0c8c6199992bd143ba7ccddae3626db123cc699cbcb709N.exe
1688	csrsll.exe
1392	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2500 wrote to memory of 2604	2500	c53a4d99db52c1fecd0c8c6199992bd143ba7ccddae3626db123cc699cbcb709N.exe	31
PID 2500 wrote to memory of 2604	2500	c53a4d99db52c1fecd0c8c6199992bd143ba7ccddae3626db123cc699cbcb709N.exe	31
PID 2500 wrote to memory of 2604	2500	c53a4d99db52c1fecd0c8c6199992bd143ba7ccddae3626db123cc699cbcb709N.exe	31
PID 2500 wrote to memory of 2604	2500	c53a4d99db52c1fecd0c8c6199992bd143ba7ccddae3626db123cc699cbcb709N.exe	31
PID 2500 wrote to memory of 2604	2500	c53a4d99db52c1fecd0c8c6199992bd143ba7ccddae3626db123cc699cbcb709N.exe	31
PID 2500 wrote to memory of 2604	2500	c53a4d99db52c1fecd0c8c6199992bd143ba7ccddae3626db123cc699cbcb709N.exe	31
PID 2500 wrote to memory of 2604	2500	c53a4d99db52c1fecd0c8c6199992bd143ba7ccddae3626db123cc699cbcb709N.exe	31
PID 2500 wrote to memory of 2604	2500	c53a4d99db52c1fecd0c8c6199992bd143ba7ccddae3626db123cc699cbcb709N.exe	31
PID 2604 wrote to memory of 1844	2604	c53a4d99db52c1fecd0c8c6199992bd143ba7ccddae3626db123cc699cbcb709N.exe	32
PID 2604 wrote to memory of 1844	2604	c53a4d99db52c1fecd0c8c6199992bd143ba7ccddae3626db123cc699cbcb709N.exe	32
PID 2604 wrote to memory of 1844	2604	c53a4d99db52c1fecd0c8c6199992bd143ba7ccddae3626db123cc699cbcb709N.exe	32
PID 2604 wrote to memory of 1844	2604	c53a4d99db52c1fecd0c8c6199992bd143ba7ccddae3626db123cc699cbcb709N.exe	32
PID 1844 wrote to memory of 2332	1844	cmd.exe	34
PID 1844 wrote to memory of 2332	1844	cmd.exe	34
PID 1844 wrote to memory of 2332	1844	cmd.exe	34
PID 1844 wrote to memory of 2332	1844	cmd.exe	34
PID 2604 wrote to memory of 1688	2604	c53a4d99db52c1fecd0c8c6199992bd143ba7ccddae3626db123cc699cbcb709N.exe	35
PID 2604 wrote to memory of 1688	2604	c53a4d99db52c1fecd0c8c6199992bd143ba7ccddae3626db123cc699cbcb709N.exe	35
PID 2604 wrote to memory of 1688	2604	c53a4d99db52c1fecd0c8c6199992bd143ba7ccddae3626db123cc699cbcb709N.exe	35
PID 2604 wrote to memory of 1688	2604	c53a4d99db52c1fecd0c8c6199992bd143ba7ccddae3626db123cc699cbcb709N.exe	35
PID 1688 wrote to memory of 1392	1688	csrsll.exe	36
PID 1688 wrote to memory of 1392	1688	csrsll.exe	36
PID 1688 wrote to memory of 1392	1688	csrsll.exe	36
PID 1688 wrote to memory of 1392	1688	csrsll.exe	36
PID 1688 wrote to memory of 1392	1688	csrsll.exe	36
PID 1688 wrote to memory of 1392	1688	csrsll.exe	36
PID 1688 wrote to memory of 1392	1688	csrsll.exe	36
PID 1688 wrote to memory of 1392	1688	csrsll.exe	36
PID 1688 wrote to memory of 1284	1688	csrsll.exe	37
PID 1688 wrote to memory of 1284	1688	csrsll.exe	37
PID 1688 wrote to memory of 1284	1688	csrsll.exe	37
PID 1688 wrote to memory of 1284	1688	csrsll.exe	37
PID 1688 wrote to memory of 1284	1688	csrsll.exe	37
PID 1688 wrote to memory of 1284	1688	csrsll.exe	37
PID 1688 wrote to memory of 1284	1688	csrsll.exe	37
PID 1688 wrote to memory of 1284	1688	csrsll.exe	37

C:\Users\Admin\AppData\Local\Temp\c53a4d99db52c1fecd0c8c6199992bd143ba7ccddae3626db123cc699cbcb709N.exe
"C:\Users\Admin\AppData\Local\Temp\c53a4d99db52c1fecd0c8c6199992bd143ba7ccddae3626db123cc699cbcb709N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2500
- C:\Users\Admin\AppData\Local\Temp\c53a4d99db52c1fecd0c8c6199992bd143ba7ccddae3626db123cc699cbcb709N.exe
  "C:\Users\Admin\AppData\Local\Temp\c53a4d99db52c1fecd0c8c6199992bd143ba7ccddae3626db123cc699cbcb709N.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2604
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\BGVUI.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1844
  - - 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:2332
- - 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:1688
  - - 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:1392
  - - 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:1284

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\BGVUI.bat

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
2ef2954eacb2e0386ec6ecc7ba58b59f

SHA1
f9b1bf68924aa88ae12de1bf6b03f87a3e532496

SHA256
1f887234599c0a2e52c77dfb3a254bd61fa09370006a386d7ce7130d9e40ff54

SHA512
0e0434cef72f6ee71087c0891d6bd29e950995d545e2a62cdfa571c227e52457499173767edf8fe2534f2d3db44daa661f5785b5efc6f4876e9b270b999324ce

Download Submit
memory/1284-244-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1284-257-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1392-256-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1688-146-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1688-154-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download
memory/1688-210-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1688-175-0x0000000000290000-0x0000000000291000-memory.dmp

Filesize
4KB

Download
memory/1688-164-0x0000000000260000-0x0000000000261000-memory.dmp

Filesize
4KB

Download
memory/1688-245-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1688-250-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2500-104-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2500-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2500-25-0x0000000000404000-0x0000000000405000-memory.dmp

Filesize
4KB

Download
memory/2500-26-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2500-41-0x00000000002A0000-0x00000000002A1000-memory.dmp

Filesize
4KB

Download
memory/2500-61-0x0000000000360000-0x0000000000361000-memory.dmp

Filesize
4KB

Download
memory/2500-89-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2500-29-0x0000000000270000-0x0000000000271000-memory.dmp

Filesize
4KB

Download
memory/2500-71-0x0000000000380000-0x0000000000381000-memory.dmp

Filesize
4KB

Download
memory/2500-79-0x00000000003A0000-0x00000000003A2000-memory.dmp

Filesize
8KB

Download
memory/2500-15-0x0000000000250000-0x0000000000251000-memory.dmp

Filesize
4KB

Download
memory/2500-5-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2500-3-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2604-92-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2604-149-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2604-150-0x00000000025F0000-0x0000000002643000-memory.dmp

Filesize
332KB

Download
memory/2604-151-0x00000000025F0000-0x0000000002643000-memory.dmp

Filesize
332KB

Download
memory/2604-131-0x00000000025F0000-0x0000000002643000-memory.dmp

Filesize
332KB

Download
memory/2604-140-0x00000000025F0000-0x0000000002643000-memory.dmp

Filesize
332KB

Download
memory/2604-209-0x00000000025F0000-0x0000000002643000-memory.dmp

Filesize
332KB

Download
memory/2604-90-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2604-94-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2604-96-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2604-98-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2604-100-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2604-254-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2604-101-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2604-102-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads