modiloader | ab73e42155bedac1876d1d1f6da4fd704b62f89243132becb8783d4b54a701a3

Analysis

max time kernel
150s
max time network
27s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
12/07/2024, 07:28

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General

Target

37d75778fa395e6c999848e0f63f22e0N.exe
Size

90KB
MD5

37d75778fa395e6c999848e0f63f22e0
SHA1

95784ef8a020c72b3eddd07906371a6277143b61
SHA256

ab73e42155bedac1876d1d1f6da4fd704b62f89243132becb8783d4b54a701a3
SHA512

c6ca55ff90c14a44caf84ba88a1f2b08c724b653567bb336e84c4661069840477f301b0cb350505372a29f5dd7bb6121b1395bec2ea180df3b2807908d2cb6fd
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDK:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3Y

Score

10^/10

modiloader 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/820-262-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
2524	csrsll.exe
1976	csrsll.exe
820	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
1228	37d75778fa395e6c999848e0f63f22e0N.exe
1228	37d75778fa395e6c999848e0f63f22e0N.exe
1228	37d75778fa395e6c999848e0f63f22e0N.exe
1228	37d75778fa395e6c999848e0f63f22e0N.exe
1228	37d75778fa395e6c999848e0f63f22e0N.exe

UPX packed file 22 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2800-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2800-88-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2800-82-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2800-87-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2800-81-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2800-78-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1228-96-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1228-105-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1228-107-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1228-104-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1228-102-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1228-98-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2800-110-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/files/0x0005000000017801-151.dat	upx
behavioral1/memory/1228-148-0x0000000002D60000-0x0000000002DB3000-memory.dmp	upx
behavioral1/memory/1228-154-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2524-213-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/820-246-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/2524-248-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1228-255-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1976-261-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/820-262-0x0000000000400000-0x0000000000414000-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-1-5-21-2212144002-1172735686-1556890956-1000\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 2800 set thread context of 1228	2800	37d75778fa395e6c999848e0f63f22e0N.exe	30
PID 2524 set thread context of 1976	2524	csrsll.exe	35
PID 2524 set thread context of 820	2524	csrsll.exe	36

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2800	37d75778fa395e6c999848e0f63f22e0N.exe
1228	37d75778fa395e6c999848e0f63f22e0N.exe
2524	csrsll.exe
1976	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2800 wrote to memory of 1228	2800	37d75778fa395e6c999848e0f63f22e0N.exe	30
PID 2800 wrote to memory of 1228	2800	37d75778fa395e6c999848e0f63f22e0N.exe	30
PID 2800 wrote to memory of 1228	2800	37d75778fa395e6c999848e0f63f22e0N.exe	30
PID 2800 wrote to memory of 1228	2800	37d75778fa395e6c999848e0f63f22e0N.exe	30
PID 2800 wrote to memory of 1228	2800	37d75778fa395e6c999848e0f63f22e0N.exe	30
PID 2800 wrote to memory of 1228	2800	37d75778fa395e6c999848e0f63f22e0N.exe	30
PID 2800 wrote to memory of 1228	2800	37d75778fa395e6c999848e0f63f22e0N.exe	30
PID 2800 wrote to memory of 1228	2800	37d75778fa395e6c999848e0f63f22e0N.exe	30
PID 1228 wrote to memory of 2980	1228	37d75778fa395e6c999848e0f63f22e0N.exe	31
PID 1228 wrote to memory of 2980	1228	37d75778fa395e6c999848e0f63f22e0N.exe	31
PID 1228 wrote to memory of 2980	1228	37d75778fa395e6c999848e0f63f22e0N.exe	31
PID 1228 wrote to memory of 2980	1228	37d75778fa395e6c999848e0f63f22e0N.exe	31
PID 2980 wrote to memory of 2384	2980	cmd.exe	33
PID 2980 wrote to memory of 2384	2980	cmd.exe	33
PID 2980 wrote to memory of 2384	2980	cmd.exe	33
PID 2980 wrote to memory of 2384	2980	cmd.exe	33
PID 1228 wrote to memory of 2524	1228	37d75778fa395e6c999848e0f63f22e0N.exe	34
PID 1228 wrote to memory of 2524	1228	37d75778fa395e6c999848e0f63f22e0N.exe	34
PID 1228 wrote to memory of 2524	1228	37d75778fa395e6c999848e0f63f22e0N.exe	34
PID 1228 wrote to memory of 2524	1228	37d75778fa395e6c999848e0f63f22e0N.exe	34
PID 2524 wrote to memory of 1976	2524	csrsll.exe	35
PID 2524 wrote to memory of 1976	2524	csrsll.exe	35
PID 2524 wrote to memory of 1976	2524	csrsll.exe	35
PID 2524 wrote to memory of 1976	2524	csrsll.exe	35
PID 2524 wrote to memory of 1976	2524	csrsll.exe	35
PID 2524 wrote to memory of 1976	2524	csrsll.exe	35
PID 2524 wrote to memory of 1976	2524	csrsll.exe	35
PID 2524 wrote to memory of 1976	2524	csrsll.exe	35
PID 2524 wrote to memory of 820	2524	csrsll.exe	36
PID 2524 wrote to memory of 820	2524	csrsll.exe	36
PID 2524 wrote to memory of 820	2524	csrsll.exe	36
PID 2524 wrote to memory of 820	2524	csrsll.exe	36
PID 2524 wrote to memory of 820	2524	csrsll.exe	36
PID 2524 wrote to memory of 820	2524	csrsll.exe	36
PID 2524 wrote to memory of 820	2524	csrsll.exe	36
PID 2524 wrote to memory of 820	2524	csrsll.exe	36

C:\Users\Admin\AppData\Local\Temp\37d75778fa395e6c999848e0f63f22e0N.exe
"C:\Users\Admin\AppData\Local\Temp\37d75778fa395e6c999848e0f63f22e0N.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2800
- C:\Users\Admin\AppData\Local\Temp\37d75778fa395e6c999848e0f63f22e0N.exe
  "C:\Users\Admin\AppData\Local\Temp\37d75778fa395e6c999848e0f63f22e0N.exe"
  2⤵
  - Loads dropped DLL
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1228
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\FBPUN.bat" "
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2980
  - - 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
      PID:2384
- - C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
    "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2524
  - - C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of SetWindowsHookEx
      PID:1976
  - - C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
      4⤵
      Executes dropped EXE
      PID:820

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
fccb3b7fd3a6e8f0b227306611dcf944

SHA1
2a2c490d54531f41bc6bd068deb51620e6f344f5

SHA256
8165c8e987acfce80d5c753e18774170554f70a50503743bcb893205391f0a5b

SHA512
a78f19c067b629b902e8bef774555b8d3dba861559f91d9f8424fc1e09fcff9854b2212450c588617fa9e7a9d8e602916c6e40a1fa5ae4f1f90823e8aaaa61b1

Download Submit
memory/820-262-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/820-246-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1228-154-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1228-105-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1228-150-0x0000000002D60000-0x0000000002DB3000-memory.dmp

Filesize
332KB

Download
memory/1228-255-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1228-100-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1228-104-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1228-107-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1228-98-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1228-94-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1228-102-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1228-148-0x0000000002D60000-0x0000000002DB3000-memory.dmp

Filesize
332KB

Download
memory/1228-149-0x0000000002D60000-0x0000000002DB3000-memory.dmp

Filesize
332KB

Download
memory/1228-96-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1976-261-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2524-157-0x00000000002F0000-0x00000000002F1000-memory.dmp

Filesize
4KB

Download
memory/2524-178-0x0000000000330000-0x0000000000331000-memory.dmp

Filesize
4KB

Download
memory/2524-213-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2524-248-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2524-167-0x0000000000310000-0x0000000000311000-memory.dmp

Filesize
4KB

Download
memory/2800-70-0x0000000000340000-0x0000000000341000-memory.dmp

Filesize
4KB

Download
memory/2800-110-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2800-27-0x0000000000270000-0x0000000000271000-memory.dmp

Filesize
4KB

Download
memory/2800-15-0x0000000000250000-0x0000000000251000-memory.dmp

Filesize
4KB

Download
memory/2800-39-0x0000000000290000-0x0000000000291000-memory.dmp

Filesize
4KB

Download
memory/2800-44-0x0000000000404000-0x0000000000405000-memory.dmp

Filesize
4KB

Download
memory/2800-60-0x0000000000320000-0x0000000000321000-memory.dmp

Filesize
4KB

Download
memory/2800-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2800-93-0x0000000001E80000-0x0000000001ED3000-memory.dmp

Filesize
332KB

Download
memory/2800-78-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2800-79-0x0000000000370000-0x0000000000372000-memory.dmp

Filesize
8KB

Download
memory/2800-81-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2800-5-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2800-87-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2800-82-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2800-88-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2800-3-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads