modiloader | 645e2bea7b3f8d7326c349974c89051fb2fb1ed87dc08543077281f23d3a4e63

Analysis

max time kernel
119s
max time network
120s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
24/11/2024, 19:07

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General

Target

645e2bea7b3f8d7326c349974c89051fb2fb1ed87dc08543077281f23d3a4e63.exe
Size

90KB
MD5

f5686b93f7aa2f187d85609f6dfafbd3
SHA1

ff0123f7363397e6c969adefbc21b0f0204f56ce
SHA256

645e2bea7b3f8d7326c349974c89051fb2fb1ed87dc08543077281f23d3a4e63
SHA512

4337d08a323e6240cf313f396a0330aa9c6bc6ff03f5537467f767876db61b0ff315359e18f5b85a42124b31fbe871233127fe6c796c0d05892eb6b38116ec95
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDg:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3K

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 2 IoCs

resource	yara_rule
behavioral1/memory/1672-250-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral1/memory/1672-257-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
1152	csrsll.exe
3040	csrsll.exe
1672	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
2468	645e2bea7b3f8d7326c349974c89051fb2fb1ed87dc08543077281f23d3a4e63.exe
2468	645e2bea7b3f8d7326c349974c89051fb2fb1ed87dc08543077281f23d3a4e63.exe
2468	645e2bea7b3f8d7326c349974c89051fb2fb1ed87dc08543077281f23d3a4e63.exe
2468	645e2bea7b3f8d7326c349974c89051fb2fb1ed87dc08543077281f23d3a4e63.exe
2468	645e2bea7b3f8d7326c349974c89051fb2fb1ed87dc08543077281f23d3a4e63.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-1-5-21-3063565911-2056067323-3330884624-1000\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 2400 set thread context of 2468	2400	645e2bea7b3f8d7326c349974c89051fb2fb1ed87dc08543077281f23d3a4e63.exe	30
PID 1152 set thread context of 3040	1152	csrsll.exe	35
PID 1152 set thread context of 1672	1152	csrsll.exe	36

UPX packed file 21 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2400-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2400-26-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2400-89-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2468-104-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2400-106-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2468-101-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2468-100-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2468-98-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2468-94-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2468-92-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/files/0x000c000000012280-131.dat	upx
behavioral1/memory/1152-148-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2468-151-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2468-152-0x0000000003440000-0x0000000003493000-memory.dmp	upx
behavioral1/memory/1152-210-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2468-255-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1152-252-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1672-250-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/3040-249-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1672-257-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/3040-256-0x0000000000400000-0x000000000040B000-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	645e2bea7b3f8d7326c349974c89051fb2fb1ed87dc08543077281f23d3a4e63.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	645e2bea7b3f8d7326c349974c89051fb2fb1ed87dc08543077281f23d3a4e63.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	3040	csrsll.exe
Token: SeDebugPrivilege	3040	csrsll.exe
Token: SeDebugPrivilege	3040	csrsll.exe
Token: SeDebugPrivilege	3040	csrsll.exe
Token: SeDebugPrivilege	3040	csrsll.exe
Token: SeDebugPrivilege	3040	csrsll.exe
Token: SeDebugPrivilege	3040	csrsll.exe
Token: SeDebugPrivilege	3040	csrsll.exe
Token: SeDebugPrivilege	3040	csrsll.exe
Token: SeDebugPrivilege	3040	csrsll.exe
Token: SeDebugPrivilege	3040	csrsll.exe
Token: SeDebugPrivilege	3040	csrsll.exe
Token: SeDebugPrivilege	3040	csrsll.exe
Token: SeDebugPrivilege	3040	csrsll.exe
Token: SeDebugPrivilege	3040	csrsll.exe
Token: SeDebugPrivilege	3040	csrsll.exe
Token: SeDebugPrivilege	3040	csrsll.exe
Token: SeDebugPrivilege	3040	csrsll.exe
Token: SeDebugPrivilege	3040	csrsll.exe
Token: SeDebugPrivilege	3040	csrsll.exe
Token: SeDebugPrivilege	3040	csrsll.exe
Token: SeDebugPrivilege	3040	csrsll.exe
Token: SeDebugPrivilege	3040	csrsll.exe
Token: SeDebugPrivilege	3040	csrsll.exe
Token: SeDebugPrivilege	3040	csrsll.exe
Token: SeDebugPrivilege	3040	csrsll.exe
Token: SeDebugPrivilege	3040	csrsll.exe
Token: SeDebugPrivilege	3040	csrsll.exe
Token: SeDebugPrivilege	3040	csrsll.exe
Token: SeDebugPrivilege	3040	csrsll.exe
Token: SeDebugPrivilege	3040	csrsll.exe
Token: SeDebugPrivilege	3040	csrsll.exe
Token: SeDebugPrivilege	3040	csrsll.exe
Token: SeDebugPrivilege	3040	csrsll.exe
Token: SeDebugPrivilege	3040	csrsll.exe
Token: SeDebugPrivilege	3040	csrsll.exe
Token: SeDebugPrivilege	3040	csrsll.exe
Token: SeDebugPrivilege	3040	csrsll.exe
Token: SeDebugPrivilege	3040	csrsll.exe
Token: SeDebugPrivilege	3040	csrsll.exe
Token: SeDebugPrivilege	3040	csrsll.exe
Token: SeDebugPrivilege	3040	csrsll.exe
Token: SeDebugPrivilege	3040	csrsll.exe
Token: SeDebugPrivilege	3040	csrsll.exe
Token: SeDebugPrivilege	3040	csrsll.exe
Token: SeDebugPrivilege	3040	csrsll.exe
Token: SeDebugPrivilege	3040	csrsll.exe
Token: SeDebugPrivilege	3040	csrsll.exe
Token: SeDebugPrivilege	3040	csrsll.exe
Token: SeDebugPrivilege	3040	csrsll.exe
Token: SeDebugPrivilege	3040	csrsll.exe
Token: SeDebugPrivilege	3040	csrsll.exe
Token: SeDebugPrivilege	3040	csrsll.exe
Token: SeDebugPrivilege	3040	csrsll.exe
Token: SeDebugPrivilege	3040	csrsll.exe
Token: SeDebugPrivilege	3040	csrsll.exe
Token: SeDebugPrivilege	3040	csrsll.exe
Token: SeDebugPrivilege	3040	csrsll.exe
Token: SeDebugPrivilege	3040	csrsll.exe
Token: SeDebugPrivilege	3040	csrsll.exe
Token: SeDebugPrivilege	3040	csrsll.exe
Token: SeDebugPrivilege	3040	csrsll.exe
Token: SeDebugPrivilege	3040	csrsll.exe
Token: SeDebugPrivilege	3040	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2400	645e2bea7b3f8d7326c349974c89051fb2fb1ed87dc08543077281f23d3a4e63.exe
2468	645e2bea7b3f8d7326c349974c89051fb2fb1ed87dc08543077281f23d3a4e63.exe
1152	csrsll.exe
3040	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2400 wrote to memory of 2468	2400	645e2bea7b3f8d7326c349974c89051fb2fb1ed87dc08543077281f23d3a4e63.exe	30
PID 2400 wrote to memory of 2468	2400	645e2bea7b3f8d7326c349974c89051fb2fb1ed87dc08543077281f23d3a4e63.exe	30
PID 2400 wrote to memory of 2468	2400	645e2bea7b3f8d7326c349974c89051fb2fb1ed87dc08543077281f23d3a4e63.exe	30
PID 2400 wrote to memory of 2468	2400	645e2bea7b3f8d7326c349974c89051fb2fb1ed87dc08543077281f23d3a4e63.exe	30
PID 2400 wrote to memory of 2468	2400	645e2bea7b3f8d7326c349974c89051fb2fb1ed87dc08543077281f23d3a4e63.exe	30
PID 2400 wrote to memory of 2468	2400	645e2bea7b3f8d7326c349974c89051fb2fb1ed87dc08543077281f23d3a4e63.exe	30
PID 2400 wrote to memory of 2468	2400	645e2bea7b3f8d7326c349974c89051fb2fb1ed87dc08543077281f23d3a4e63.exe	30
PID 2400 wrote to memory of 2468	2400	645e2bea7b3f8d7326c349974c89051fb2fb1ed87dc08543077281f23d3a4e63.exe	30
PID 2468 wrote to memory of 2544	2468	645e2bea7b3f8d7326c349974c89051fb2fb1ed87dc08543077281f23d3a4e63.exe	31
PID 2468 wrote to memory of 2544	2468	645e2bea7b3f8d7326c349974c89051fb2fb1ed87dc08543077281f23d3a4e63.exe	31
PID 2468 wrote to memory of 2544	2468	645e2bea7b3f8d7326c349974c89051fb2fb1ed87dc08543077281f23d3a4e63.exe	31
PID 2468 wrote to memory of 2544	2468	645e2bea7b3f8d7326c349974c89051fb2fb1ed87dc08543077281f23d3a4e63.exe	31
PID 2544 wrote to memory of 628	2544	cmd.exe	33
PID 2544 wrote to memory of 628	2544	cmd.exe	33
PID 2544 wrote to memory of 628	2544	cmd.exe	33
PID 2544 wrote to memory of 628	2544	cmd.exe	33
PID 2468 wrote to memory of 1152	2468	645e2bea7b3f8d7326c349974c89051fb2fb1ed87dc08543077281f23d3a4e63.exe	34
PID 2468 wrote to memory of 1152	2468	645e2bea7b3f8d7326c349974c89051fb2fb1ed87dc08543077281f23d3a4e63.exe	34
PID 2468 wrote to memory of 1152	2468	645e2bea7b3f8d7326c349974c89051fb2fb1ed87dc08543077281f23d3a4e63.exe	34
PID 2468 wrote to memory of 1152	2468	645e2bea7b3f8d7326c349974c89051fb2fb1ed87dc08543077281f23d3a4e63.exe	34
PID 1152 wrote to memory of 3040	1152	csrsll.exe	35
PID 1152 wrote to memory of 3040	1152	csrsll.exe	35
PID 1152 wrote to memory of 3040	1152	csrsll.exe	35
PID 1152 wrote to memory of 3040	1152	csrsll.exe	35
PID 1152 wrote to memory of 3040	1152	csrsll.exe	35
PID 1152 wrote to memory of 3040	1152	csrsll.exe	35
PID 1152 wrote to memory of 3040	1152	csrsll.exe	35
PID 1152 wrote to memory of 3040	1152	csrsll.exe	35
PID 1152 wrote to memory of 1672	1152	csrsll.exe	36
PID 1152 wrote to memory of 1672	1152	csrsll.exe	36
PID 1152 wrote to memory of 1672	1152	csrsll.exe	36
PID 1152 wrote to memory of 1672	1152	csrsll.exe	36
PID 1152 wrote to memory of 1672	1152	csrsll.exe	36
PID 1152 wrote to memory of 1672	1152	csrsll.exe	36
PID 1152 wrote to memory of 1672	1152	csrsll.exe	36
PID 1152 wrote to memory of 1672	1152	csrsll.exe	36

C:\Users\Admin\AppData\Local\Temp\645e2bea7b3f8d7326c349974c89051fb2fb1ed87dc08543077281f23d3a4e63.exe
"C:\Users\Admin\AppData\Local\Temp\645e2bea7b3f8d7326c349974c89051fb2fb1ed87dc08543077281f23d3a4e63.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2400
- C:\Users\Admin\AppData\Local\Temp\645e2bea7b3f8d7326c349974c89051fb2fb1ed87dc08543077281f23d3a4e63.exe
  "C:\Users\Admin\AppData\Local\Temp\645e2bea7b3f8d7326c349974c89051fb2fb1ed87dc08543077281f23d3a4e63.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2468
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\DIXYV.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2544
  - - 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:628
- - 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:1152
  - - 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:3040
  - - 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:1672

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

Replay Monitor

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Downloads

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

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
964d855171ff14b078062b8b875c888d

SHA1
fff12428f303d3f211e97659799183b430d5eea3

SHA256
7d544d014df1aaa80e6872a43743338c3964d6791b1e2e9c6be04b87946e1a90

SHA512
3e3f90e6eb3487e38a96851f0ed2010f79bc122bd7c68f767f74f790bc3dc789f43adfc66b0fe1d6c72ccf207b53b6b91a7ff9b7ea700e95b2a5a6ea3e88ad0d

Download Submit
memory/1152-155-0x0000000000270000-0x0000000000271000-memory.dmp

Filesize
4KB

Download
memory/1152-165-0x0000000000310000-0x0000000000311000-memory.dmp

Filesize
4KB

Download
memory/1152-210-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1152-176-0x0000000000330000-0x0000000000331000-memory.dmp

Filesize
4KB

Download
memory/1152-252-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1152-148-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1672-257-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1672-250-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2400-106-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2400-16-0x0000000000290000-0x0000000000291000-memory.dmp

Filesize
4KB

Download
memory/2400-79-0x00000000003E0000-0x00000000003E2000-memory.dmp

Filesize
8KB

Download
memory/2400-89-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2400-41-0x0000000000350000-0x0000000000351000-memory.dmp

Filesize
4KB

Download
memory/2400-29-0x0000000000330000-0x0000000000331000-memory.dmp

Filesize
4KB

Download
memory/2400-26-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2400-103-0x0000000001D70000-0x0000000001DC3000-memory.dmp

Filesize
332KB

Download
memory/2400-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2400-15-0x0000000000404000-0x0000000000405000-memory.dmp

Filesize
4KB

Download
memory/2400-71-0x00000000003B0000-0x00000000003B1000-memory.dmp

Filesize
4KB

Download
memory/2400-61-0x0000000000390000-0x0000000000391000-memory.dmp

Filesize
4KB

Download
memory/2400-5-0x0000000000270000-0x0000000000271000-memory.dmp

Filesize
4KB

Download
memory/2400-3-0x0000000000270000-0x0000000000271000-memory.dmp

Filesize
4KB

Download
memory/2468-92-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2468-96-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2468-146-0x0000000003450000-0x00000000034A3000-memory.dmp

Filesize
332KB

Download
memory/2468-151-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2468-152-0x0000000003440000-0x0000000003493000-memory.dmp

Filesize
332KB

Download
memory/2468-90-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2468-94-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2468-140-0x0000000003440000-0x0000000003493000-memory.dmp

Filesize
332KB

Download
memory/2468-98-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2468-255-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2468-100-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2468-101-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2468-104-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3040-249-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3040-256-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads