modiloader | ab73e42155bedac1876d1d1f6da4fd704b62f89243132becb8783d4b54a701a3

Analysis

max time kernel
148s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-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 3 IoCs

resource	yara_rule
behavioral2/memory/748-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/748-57-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/748-59-0x0000000000400000-0x0000000000414000-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-1-5-21-2650514177-1034912467-4025611726-1000\Control Panel\International\Geo\Nation	37d75778fa395e6c999848e0f63f22e0N.exe

Executes dropped EXE 3 IoCs

pid	Process
2440	csrsll.exe
4704	csrsll.exe
748	csrsll.exe

UPX packed file 16 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3648-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4104-6-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4104-11-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4104-10-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3648-13-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x000b000000023428-29.dat	upx
behavioral2/memory/2440-37-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2440-45-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/748-46-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/748-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2440-52-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/748-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/748-57-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4104-58-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/748-59-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4704-60-0x0000000000400000-0x000000000040B000-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-1-5-21-2650514177-1034912467-4025611726-1000\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 3648 set thread context of 4104	3648	37d75778fa395e6c999848e0f63f22e0N.exe	87
PID 2440 set thread context of 4704	2440	csrsll.exe	93
PID 2440 set thread context of 748	2440	csrsll.exe	94

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	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
3648	37d75778fa395e6c999848e0f63f22e0N.exe
4104	37d75778fa395e6c999848e0f63f22e0N.exe
2440	csrsll.exe
4704	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 3648 wrote to memory of 4104	3648	37d75778fa395e6c999848e0f63f22e0N.exe	87
PID 3648 wrote to memory of 4104	3648	37d75778fa395e6c999848e0f63f22e0N.exe	87
PID 3648 wrote to memory of 4104	3648	37d75778fa395e6c999848e0f63f22e0N.exe	87
PID 3648 wrote to memory of 4104	3648	37d75778fa395e6c999848e0f63f22e0N.exe	87
PID 3648 wrote to memory of 4104	3648	37d75778fa395e6c999848e0f63f22e0N.exe	87
PID 3648 wrote to memory of 4104	3648	37d75778fa395e6c999848e0f63f22e0N.exe	87
PID 3648 wrote to memory of 4104	3648	37d75778fa395e6c999848e0f63f22e0N.exe	87
PID 3648 wrote to memory of 4104	3648	37d75778fa395e6c999848e0f63f22e0N.exe	87
PID 4104 wrote to memory of 1672	4104	37d75778fa395e6c999848e0f63f22e0N.exe	88
PID 4104 wrote to memory of 1672	4104	37d75778fa395e6c999848e0f63f22e0N.exe	88
PID 4104 wrote to memory of 1672	4104	37d75778fa395e6c999848e0f63f22e0N.exe	88
PID 1672 wrote to memory of 4024	1672	cmd.exe	91
PID 1672 wrote to memory of 4024	1672	cmd.exe	91
PID 1672 wrote to memory of 4024	1672	cmd.exe	91
PID 4104 wrote to memory of 2440	4104	37d75778fa395e6c999848e0f63f22e0N.exe	92
PID 4104 wrote to memory of 2440	4104	37d75778fa395e6c999848e0f63f22e0N.exe	92
PID 4104 wrote to memory of 2440	4104	37d75778fa395e6c999848e0f63f22e0N.exe	92
PID 2440 wrote to memory of 4704	2440	csrsll.exe	93
PID 2440 wrote to memory of 4704	2440	csrsll.exe	93
PID 2440 wrote to memory of 4704	2440	csrsll.exe	93
PID 2440 wrote to memory of 4704	2440	csrsll.exe	93
PID 2440 wrote to memory of 4704	2440	csrsll.exe	93
PID 2440 wrote to memory of 4704	2440	csrsll.exe	93
PID 2440 wrote to memory of 4704	2440	csrsll.exe	93
PID 2440 wrote to memory of 4704	2440	csrsll.exe	93
PID 2440 wrote to memory of 748	2440	csrsll.exe	94
PID 2440 wrote to memory of 748	2440	csrsll.exe	94
PID 2440 wrote to memory of 748	2440	csrsll.exe	94
PID 2440 wrote to memory of 748	2440	csrsll.exe	94
PID 2440 wrote to memory of 748	2440	csrsll.exe	94
PID 2440 wrote to memory of 748	2440	csrsll.exe	94
PID 2440 wrote to memory of 748	2440	csrsll.exe	94
PID 2440 wrote to memory of 748	2440	csrsll.exe	94

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:3648
- C:\Users\Admin\AppData\Local\Temp\37d75778fa395e6c999848e0f63f22e0N.exe
  "C:\Users\Admin\AppData\Local\Temp\37d75778fa395e6c999848e0f63f22e0N.exe"
  2⤵
  - Checks computer location settings
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4104
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\GFSIW.bat" "
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1672
  - - 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:4024
- - 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:2440
  - - 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:4704
  - - C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
      4⤵
      Executes dropped EXE
      PID:748

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\GFSIW.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
5e56e3cba52a4b3615d1b30c4ec08829

SHA1
4d7665ada5ad742d30ae8146814b4059066ee806

SHA256
1d77c5faf146f1219658fe052e55c6c24bc689c48f24a5aa6fc7157939ff6cf8

SHA512
29b3eb4260dfc6a372d160ab2abb3589382c1a77aa3ef49d79ca622da5965345e23ed0d402adb86dc5251869abb833eb87d7dce002945ae1ee86f4dc83eb5f5c

Download Submit
memory/748-59-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/748-57-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/748-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/748-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/748-46-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2440-52-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2440-37-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2440-45-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3648-5-0x0000000002310000-0x0000000002312000-memory.dmp

Filesize
8KB

Download
memory/3648-9-0x0000000002430000-0x0000000002432000-memory.dmp

Filesize
8KB

Download
memory/3648-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3648-4-0x0000000002300000-0x0000000002302000-memory.dmp

Filesize
8KB

Download
memory/3648-13-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3648-3-0x00000000022F0000-0x00000000022F2000-memory.dmp

Filesize
8KB

Download
memory/4104-10-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4104-11-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4104-6-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4104-58-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4104-55-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/4704-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads