modiloader | 54b4b6ff065acfe556314a4cde93e8ece949e0afb807739ce68d0cef6b75086b

Analysis

max time kernel
149s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
19-01-2025 00:34

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General

Target

54b4b6ff065acfe556314a4cde93e8ece949e0afb807739ce68d0cef6b75086b.exe
Size

300KB
MD5

6f073d14508aa79d76397cffce235651
SHA1

233420074164775690b3193a3684a890c3ededf9
SHA256

54b4b6ff065acfe556314a4cde93e8ece949e0afb807739ce68d0cef6b75086b
SHA512

d50a90ca45573953c295e94d609b76e1b1ef3c824c858348e1e9bf2519666f40489921f7e0b518afb40e937aae37fe9e564fbf3c3580147394338732eede8cbb
SSDEEP

3072:Ue2A0wxDqUpM5scww4chO+O1BmP5DG0sg3i4XZ9WvDZHwdRX/L+gP38Gs:UsxD5cwohO+O1sVG0/pZ6iPC8q

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 4 IoCs

resource	yara_rule
behavioral2/memory/2408-51-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2408-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2408-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2408-59-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	54b4b6ff065acfe556314a4cde93e8ece949e0afb807739ce68d0cef6b75086b.exe

Executes dropped EXE 3 IoCs

pid	Process
1116	csrsll.exe
688	csrsll.exe
2408	csrsll.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-1-5-21-4050598569-1597076380-177084960-1000\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 4796 set thread context of 440	4796	54b4b6ff065acfe556314a4cde93e8ece949e0afb807739ce68d0cef6b75086b.exe	82
PID 1116 set thread context of 688	1116	csrsll.exe	88
PID 1116 set thread context of 2408	1116	csrsll.exe	89

UPX packed file 12 IoCs

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

upx

resource	yara_rule
behavioral2/memory/440-6-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/440-8-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/440-10-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/440-37-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2408-49-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2408-42-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2408-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2408-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2408-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/440-56-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/688-58-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2408-59-0x0000000000400000-0x0000000000414000-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	54b4b6ff065acfe556314a4cde93e8ece949e0afb807739ce68d0cef6b75086b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	54b4b6ff065acfe556314a4cde93e8ece949e0afb807739ce68d0cef6b75086b.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	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe
Token: SeDebugPrivilege	688	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
4796	54b4b6ff065acfe556314a4cde93e8ece949e0afb807739ce68d0cef6b75086b.exe
440	54b4b6ff065acfe556314a4cde93e8ece949e0afb807739ce68d0cef6b75086b.exe
1116	csrsll.exe
688	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 4796 wrote to memory of 440	4796	54b4b6ff065acfe556314a4cde93e8ece949e0afb807739ce68d0cef6b75086b.exe	82
PID 4796 wrote to memory of 440	4796	54b4b6ff065acfe556314a4cde93e8ece949e0afb807739ce68d0cef6b75086b.exe	82
PID 4796 wrote to memory of 440	4796	54b4b6ff065acfe556314a4cde93e8ece949e0afb807739ce68d0cef6b75086b.exe	82
PID 4796 wrote to memory of 440	4796	54b4b6ff065acfe556314a4cde93e8ece949e0afb807739ce68d0cef6b75086b.exe	82
PID 4796 wrote to memory of 440	4796	54b4b6ff065acfe556314a4cde93e8ece949e0afb807739ce68d0cef6b75086b.exe	82
PID 4796 wrote to memory of 440	4796	54b4b6ff065acfe556314a4cde93e8ece949e0afb807739ce68d0cef6b75086b.exe	82
PID 4796 wrote to memory of 440	4796	54b4b6ff065acfe556314a4cde93e8ece949e0afb807739ce68d0cef6b75086b.exe	82
PID 4796 wrote to memory of 440	4796	54b4b6ff065acfe556314a4cde93e8ece949e0afb807739ce68d0cef6b75086b.exe	82
PID 440 wrote to memory of 5088	440	54b4b6ff065acfe556314a4cde93e8ece949e0afb807739ce68d0cef6b75086b.exe	83
PID 440 wrote to memory of 5088	440	54b4b6ff065acfe556314a4cde93e8ece949e0afb807739ce68d0cef6b75086b.exe	83
PID 440 wrote to memory of 5088	440	54b4b6ff065acfe556314a4cde93e8ece949e0afb807739ce68d0cef6b75086b.exe	83
PID 5088 wrote to memory of 2672	5088	cmd.exe	86
PID 5088 wrote to memory of 2672	5088	cmd.exe	86
PID 5088 wrote to memory of 2672	5088	cmd.exe	86
PID 440 wrote to memory of 1116	440	54b4b6ff065acfe556314a4cde93e8ece949e0afb807739ce68d0cef6b75086b.exe	87
PID 440 wrote to memory of 1116	440	54b4b6ff065acfe556314a4cde93e8ece949e0afb807739ce68d0cef6b75086b.exe	87
PID 440 wrote to memory of 1116	440	54b4b6ff065acfe556314a4cde93e8ece949e0afb807739ce68d0cef6b75086b.exe	87
PID 1116 wrote to memory of 688	1116	csrsll.exe	88
PID 1116 wrote to memory of 688	1116	csrsll.exe	88
PID 1116 wrote to memory of 688	1116	csrsll.exe	88
PID 1116 wrote to memory of 688	1116	csrsll.exe	88
PID 1116 wrote to memory of 688	1116	csrsll.exe	88
PID 1116 wrote to memory of 688	1116	csrsll.exe	88
PID 1116 wrote to memory of 688	1116	csrsll.exe	88
PID 1116 wrote to memory of 688	1116	csrsll.exe	88
PID 1116 wrote to memory of 2408	1116	csrsll.exe	89
PID 1116 wrote to memory of 2408	1116	csrsll.exe	89
PID 1116 wrote to memory of 2408	1116	csrsll.exe	89
PID 1116 wrote to memory of 2408	1116	csrsll.exe	89
PID 1116 wrote to memory of 2408	1116	csrsll.exe	89
PID 1116 wrote to memory of 2408	1116	csrsll.exe	89
PID 1116 wrote to memory of 2408	1116	csrsll.exe	89
PID 1116 wrote to memory of 2408	1116	csrsll.exe	89

C:\Users\Admin\AppData\Local\Temp\54b4b6ff065acfe556314a4cde93e8ece949e0afb807739ce68d0cef6b75086b.exe
"C:\Users\Admin\AppData\Local\Temp\54b4b6ff065acfe556314a4cde93e8ece949e0afb807739ce68d0cef6b75086b.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4796
- C:\Users\Admin\AppData\Local\Temp\54b4b6ff065acfe556314a4cde93e8ece949e0afb807739ce68d0cef6b75086b.exe
  "C:\Users\Admin\AppData\Local\Temp\54b4b6ff065acfe556314a4cde93e8ece949e0afb807739ce68d0cef6b75086b.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:440
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\RVQYM.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:5088
  - - 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:2672
- - 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:1116
  - - 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:688
  - - 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:2408

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

Query Registry

T1012

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\RVQYM.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
300KB

MD5
23c3c2dd8c61a50fcc26df30fbc9b65a

SHA1
2a23a1c3fa77b3680fe3af5cfba63022cc565a19

SHA256
64d2a2c7eedfc691c4689bbac8ec2e3402ced431fdcf85d86c14072a11063c88

SHA512
b89ca67f076525ee1aac275cfcb56415148871daa3644d256d02bacd6b25945783f874cd4f455741e70631097e29e300e57e471604c57648c39b15cd752588cb

Download Submit
memory/440-56-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/440-37-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/440-6-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/440-8-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/440-10-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/688-58-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1116-38-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1116-39-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1116-55-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/2408-49-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2408-42-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2408-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2408-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2408-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2408-59-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4796-5-0x0000000002A70000-0x0000000002A72000-memory.dmp

Filesize
8KB

Download
memory/4796-0-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/4796-4-0x0000000002A50000-0x0000000002A52000-memory.dmp

Filesize
8KB

Download
memory/4796-3-0x0000000002A40000-0x0000000002A42000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads