modiloader | 8e34d1d1dbb936909370a48c509f3f30006654fb9433c8656205489d26ea4007

Analysis

max time kernel
118s
max time network
18s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
16/12/2024, 18:06

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General

Target

8e34d1d1dbb936909370a48c509f3f30006654fb9433c8656205489d26ea4007N.exe
Size

300KB
MD5

d179110c09bc742105dbf2c9666f8da0
SHA1

fea4d7603197ea464f22f9f67e91dd0914735e1e
SHA256

8e34d1d1dbb936909370a48c509f3f30006654fb9433c8656205489d26ea4007
SHA512

af9b066dd979dac61f1aa02080860dcb417b7a8dc716eabe9e0b707d93a7c2f6452d12f6e84a5c875ea61d01eaa9fc165f71ab08f6053d540924ae86c386b6d8
SSDEEP

3072:Ue2A0wxDqUpM5scww4chO+O1BmP5DG0sg3i4XZ9WvDZHwdRX/L+gP38GK:UsxD5cwohO+O1sVG0/pZ6iPC88

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/1296-247-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
2908	csrsll.exe
1784	csrsll.exe
1296	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
2364	8e34d1d1dbb936909370a48c509f3f30006654fb9433c8656205489d26ea4007N.exe
2364	8e34d1d1dbb936909370a48c509f3f30006654fb9433c8656205489d26ea4007N.exe
2364	8e34d1d1dbb936909370a48c509f3f30006654fb9433c8656205489d26ea4007N.exe
2364	8e34d1d1dbb936909370a48c509f3f30006654fb9433c8656205489d26ea4007N.exe
2364	8e34d1d1dbb936909370a48c509f3f30006654fb9433c8656205489d26ea4007N.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 2404 set thread context of 2364	2404	8e34d1d1dbb936909370a48c509f3f30006654fb9433c8656205489d26ea4007N.exe	31
PID 2908 set thread context of 1784	2908	csrsll.exe	36
PID 2908 set thread context of 1296	2908	csrsll.exe	37

UPX packed file 12 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2364-99-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2364-102-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2364-98-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2364-97-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2364-95-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2364-91-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2364-89-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1296-236-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/2364-235-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2364-243-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1784-246-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1296-247-0x0000000000400000-0x0000000000414000-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	8e34d1d1dbb936909370a48c509f3f30006654fb9433c8656205489d26ea4007N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8e34d1d1dbb936909370a48c509f3f30006654fb9433c8656205489d26ea4007N.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

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe
Token: SeDebugPrivilege	1784	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2404	8e34d1d1dbb936909370a48c509f3f30006654fb9433c8656205489d26ea4007N.exe
2364	8e34d1d1dbb936909370a48c509f3f30006654fb9433c8656205489d26ea4007N.exe
2908	csrsll.exe
1784	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2404 wrote to memory of 2364	2404	8e34d1d1dbb936909370a48c509f3f30006654fb9433c8656205489d26ea4007N.exe	31
PID 2404 wrote to memory of 2364	2404	8e34d1d1dbb936909370a48c509f3f30006654fb9433c8656205489d26ea4007N.exe	31
PID 2404 wrote to memory of 2364	2404	8e34d1d1dbb936909370a48c509f3f30006654fb9433c8656205489d26ea4007N.exe	31
PID 2404 wrote to memory of 2364	2404	8e34d1d1dbb936909370a48c509f3f30006654fb9433c8656205489d26ea4007N.exe	31
PID 2404 wrote to memory of 2364	2404	8e34d1d1dbb936909370a48c509f3f30006654fb9433c8656205489d26ea4007N.exe	31
PID 2404 wrote to memory of 2364	2404	8e34d1d1dbb936909370a48c509f3f30006654fb9433c8656205489d26ea4007N.exe	31
PID 2404 wrote to memory of 2364	2404	8e34d1d1dbb936909370a48c509f3f30006654fb9433c8656205489d26ea4007N.exe	31
PID 2404 wrote to memory of 2364	2404	8e34d1d1dbb936909370a48c509f3f30006654fb9433c8656205489d26ea4007N.exe	31
PID 2364 wrote to memory of 2068	2364	8e34d1d1dbb936909370a48c509f3f30006654fb9433c8656205489d26ea4007N.exe	32
PID 2364 wrote to memory of 2068	2364	8e34d1d1dbb936909370a48c509f3f30006654fb9433c8656205489d26ea4007N.exe	32
PID 2364 wrote to memory of 2068	2364	8e34d1d1dbb936909370a48c509f3f30006654fb9433c8656205489d26ea4007N.exe	32
PID 2364 wrote to memory of 2068	2364	8e34d1d1dbb936909370a48c509f3f30006654fb9433c8656205489d26ea4007N.exe	32
PID 2068 wrote to memory of 3068	2068	cmd.exe	34
PID 2068 wrote to memory of 3068	2068	cmd.exe	34
PID 2068 wrote to memory of 3068	2068	cmd.exe	34
PID 2068 wrote to memory of 3068	2068	cmd.exe	34
PID 2364 wrote to memory of 2908	2364	8e34d1d1dbb936909370a48c509f3f30006654fb9433c8656205489d26ea4007N.exe	35
PID 2364 wrote to memory of 2908	2364	8e34d1d1dbb936909370a48c509f3f30006654fb9433c8656205489d26ea4007N.exe	35
PID 2364 wrote to memory of 2908	2364	8e34d1d1dbb936909370a48c509f3f30006654fb9433c8656205489d26ea4007N.exe	35
PID 2364 wrote to memory of 2908	2364	8e34d1d1dbb936909370a48c509f3f30006654fb9433c8656205489d26ea4007N.exe	35
PID 2908 wrote to memory of 1784	2908	csrsll.exe	36
PID 2908 wrote to memory of 1784	2908	csrsll.exe	36
PID 2908 wrote to memory of 1784	2908	csrsll.exe	36
PID 2908 wrote to memory of 1784	2908	csrsll.exe	36
PID 2908 wrote to memory of 1784	2908	csrsll.exe	36
PID 2908 wrote to memory of 1784	2908	csrsll.exe	36
PID 2908 wrote to memory of 1784	2908	csrsll.exe	36
PID 2908 wrote to memory of 1784	2908	csrsll.exe	36
PID 2908 wrote to memory of 1296	2908	csrsll.exe	37
PID 2908 wrote to memory of 1296	2908	csrsll.exe	37
PID 2908 wrote to memory of 1296	2908	csrsll.exe	37
PID 2908 wrote to memory of 1296	2908	csrsll.exe	37
PID 2908 wrote to memory of 1296	2908	csrsll.exe	37
PID 2908 wrote to memory of 1296	2908	csrsll.exe	37
PID 2908 wrote to memory of 1296	2908	csrsll.exe	37
PID 2908 wrote to memory of 1296	2908	csrsll.exe	37

C:\Users\Admin\AppData\Local\Temp\8e34d1d1dbb936909370a48c509f3f30006654fb9433c8656205489d26ea4007N.exe
"C:\Users\Admin\AppData\Local\Temp\8e34d1d1dbb936909370a48c509f3f30006654fb9433c8656205489d26ea4007N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2404
- C:\Users\Admin\AppData\Local\Temp\8e34d1d1dbb936909370a48c509f3f30006654fb9433c8656205489d26ea4007N.exe
  "C:\Users\Admin\AppData\Local\Temp\8e34d1d1dbb936909370a48c509f3f30006654fb9433c8656205489d26ea4007N.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2364
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\AMRNB.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2068
  - - 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:3068
- - 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:2908
  - - 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:1784
  - - 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:1296

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\AMRNB.bat

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
300KB

MD5
dd1fb8ef05a79e366692ae25e904be8e

SHA1
254165631a67c854482b9fa870dd35f9e363d9cd

SHA256
ed9b1b3b0a38b9685a3509e319b43b686fabf246236a47ebc17d397f0454c47b

SHA512
ad5cb69e8f095324336befea5b98c7c9df002a1e66beba4637c6dcc41f872a55004efaace3b8dd22a4e3fd25b66c1be6470e5fc797836a29b3496ff43e5f2ff0

Download Submit
memory/1296-236-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1296-247-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1784-246-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2364-99-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2364-235-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2364-89-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2364-243-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2364-87-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2364-102-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2364-98-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2364-97-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2364-95-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2364-93-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2364-91-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2404-69-0x00000000003C0000-0x00000000003C1000-memory.dmp

Filesize
4KB

Download
memory/2404-33-0x0000000000510000-0x0000000000610000-memory.dmp

Filesize
1024KB

Download
memory/2404-27-0x0000000000330000-0x0000000000331000-memory.dmp

Filesize
4KB

Download
memory/2404-39-0x0000000000350000-0x0000000000351000-memory.dmp

Filesize
4KB

Download
memory/2404-59-0x00000000003A0000-0x00000000003A1000-memory.dmp

Filesize
4KB

Download
memory/2404-0-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/2404-34-0x0000000000510000-0x0000000000610000-memory.dmp

Filesize
1024KB

Download
memory/2404-5-0x00000000002F0000-0x00000000002F1000-memory.dmp

Filesize
4KB

Download
memory/2404-15-0x0000000000310000-0x0000000000311000-memory.dmp

Filesize
4KB

Download
memory/2404-3-0x00000000002F0000-0x00000000002F1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads