modiloader | b0c2061f4acbdccbccdecfae5b3f4fd9b7749138a09c9a5fa36b5edc72d69ea4

Analysis

max time kernel
119s
max time network
122s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
27-09-2024 16:47

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General

Target

b0c2061f4acbdccbccdecfae5b3f4fd9b7749138a09c9a5fa36b5edc72d69ea4N.exe
Size

90KB
MD5

90704e39057b15433a2ff078c3b91ba0
SHA1

a05d8b57456100a6c002891f56472298dbbba239
SHA256

b0c2061f4acbdccbccdecfae5b3f4fd9b7749138a09c9a5fa36b5edc72d69ea4
SHA512

5cfb928f2e68a824e4ad2c0460ca3973f849f82fd31a96cac331ec859915af39ef48c7087829a31d2c23caac0e1db9489e6a9ed4f8373efcca2601e64b7853fd
SSDEEP

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

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 Second Stage 4 IoCs

resource	yara_rule
behavioral2/memory/2840-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2840-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2840-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2840-63-0x0000000000400000-0x0000000000414000-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-1-5-21-523280732-2327480845-3730041215-1000\Control Panel\International\Geo\Nation	b0c2061f4acbdccbccdecfae5b3f4fd9b7749138a09c9a5fa36b5edc72d69ea4N.exe

Executes dropped EXE 3 IoCs

pid	Process
1684	csrsll.exe
1248	csrsll.exe
2840	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-1-5-21-523280732-2327480845-3730041215-1000\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 2196 set thread context of 380	2196	b0c2061f4acbdccbccdecfae5b3f4fd9b7749138a09c9a5fa36b5edc72d69ea4N.exe	82
PID 1684 set thread context of 1248	1684	csrsll.exe	93
PID 1684 set thread context of 2840	1684	csrsll.exe	94

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2196-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2196-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/380-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/380-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/380-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2196-12-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x000800000002343d-29.dat	upx
behavioral2/memory/1684-37-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/380-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1684-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1684-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2840-46-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2840-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2840-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2840-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2840-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1684-58-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/380-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1248-62-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2840-63-0x0000000000400000-0x0000000000414000-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	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b0c2061f4acbdccbccdecfae5b3f4fd9b7749138a09c9a5fa36b5edc72d69ea4N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b0c2061f4acbdccbccdecfae5b3f4fd9b7749138a09c9a5fa36b5edc72d69ea4N.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

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	1248	csrsll.exe
Token: SeDebugPrivilege	1248	csrsll.exe
Token: SeDebugPrivilege	1248	csrsll.exe
Token: SeDebugPrivilege	1248	csrsll.exe
Token: SeDebugPrivilege	1248	csrsll.exe
Token: SeDebugPrivilege	1248	csrsll.exe
Token: SeDebugPrivilege	1248	csrsll.exe
Token: SeDebugPrivilege	1248	csrsll.exe
Token: SeDebugPrivilege	1248	csrsll.exe
Token: SeDebugPrivilege	1248	csrsll.exe
Token: SeDebugPrivilege	1248	csrsll.exe
Token: SeDebugPrivilege	1248	csrsll.exe
Token: SeDebugPrivilege	1248	csrsll.exe
Token: SeDebugPrivilege	1248	csrsll.exe
Token: SeDebugPrivilege	1248	csrsll.exe
Token: SeDebugPrivilege	1248	csrsll.exe
Token: SeDebugPrivilege	1248	csrsll.exe
Token: SeDebugPrivilege	1248	csrsll.exe
Token: SeDebugPrivilege	1248	csrsll.exe
Token: SeDebugPrivilege	1248	csrsll.exe
Token: SeDebugPrivilege	1248	csrsll.exe
Token: SeDebugPrivilege	1248	csrsll.exe
Token: SeDebugPrivilege	1248	csrsll.exe
Token: SeDebugPrivilege	1248	csrsll.exe
Token: SeDebugPrivilege	1248	csrsll.exe
Token: SeDebugPrivilege	1248	csrsll.exe
Token: SeDebugPrivilege	1248	csrsll.exe
Token: SeDebugPrivilege	1248	csrsll.exe
Token: SeDebugPrivilege	1248	csrsll.exe
Token: SeDebugPrivilege	1248	csrsll.exe
Token: SeDebugPrivilege	1248	csrsll.exe
Token: SeDebugPrivilege	1248	csrsll.exe
Token: SeDebugPrivilege	1248	csrsll.exe
Token: SeDebugPrivilege	1248	csrsll.exe
Token: SeDebugPrivilege	1248	csrsll.exe
Token: SeDebugPrivilege	1248	csrsll.exe
Token: SeDebugPrivilege	1248	csrsll.exe
Token: SeDebugPrivilege	1248	csrsll.exe
Token: SeDebugPrivilege	1248	csrsll.exe
Token: SeDebugPrivilege	1248	csrsll.exe
Token: SeDebugPrivilege	1248	csrsll.exe
Token: SeDebugPrivilege	1248	csrsll.exe
Token: SeDebugPrivilege	1248	csrsll.exe
Token: SeDebugPrivilege	1248	csrsll.exe
Token: SeDebugPrivilege	1248	csrsll.exe
Token: SeDebugPrivilege	1248	csrsll.exe
Token: SeDebugPrivilege	1248	csrsll.exe
Token: SeDebugPrivilege	1248	csrsll.exe
Token: SeDebugPrivilege	1248	csrsll.exe
Token: SeDebugPrivilege	1248	csrsll.exe
Token: SeDebugPrivilege	1248	csrsll.exe
Token: SeDebugPrivilege	1248	csrsll.exe
Token: SeDebugPrivilege	1248	csrsll.exe
Token: SeDebugPrivilege	1248	csrsll.exe
Token: SeDebugPrivilege	1248	csrsll.exe
Token: SeDebugPrivilege	1248	csrsll.exe
Token: SeDebugPrivilege	1248	csrsll.exe
Token: SeDebugPrivilege	1248	csrsll.exe
Token: SeDebugPrivilege	1248	csrsll.exe
Token: SeDebugPrivilege	1248	csrsll.exe
Token: SeDebugPrivilege	1248	csrsll.exe
Token: SeDebugPrivilege	1248	csrsll.exe
Token: SeDebugPrivilege	1248	csrsll.exe
Token: SeDebugPrivilege	1248	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2196	b0c2061f4acbdccbccdecfae5b3f4fd9b7749138a09c9a5fa36b5edc72d69ea4N.exe
380	b0c2061f4acbdccbccdecfae5b3f4fd9b7749138a09c9a5fa36b5edc72d69ea4N.exe
1684	csrsll.exe
1248	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 2196 wrote to memory of 380	2196	b0c2061f4acbdccbccdecfae5b3f4fd9b7749138a09c9a5fa36b5edc72d69ea4N.exe	82
PID 2196 wrote to memory of 380	2196	b0c2061f4acbdccbccdecfae5b3f4fd9b7749138a09c9a5fa36b5edc72d69ea4N.exe	82
PID 2196 wrote to memory of 380	2196	b0c2061f4acbdccbccdecfae5b3f4fd9b7749138a09c9a5fa36b5edc72d69ea4N.exe	82
PID 2196 wrote to memory of 380	2196	b0c2061f4acbdccbccdecfae5b3f4fd9b7749138a09c9a5fa36b5edc72d69ea4N.exe	82
PID 2196 wrote to memory of 380	2196	b0c2061f4acbdccbccdecfae5b3f4fd9b7749138a09c9a5fa36b5edc72d69ea4N.exe	82
PID 2196 wrote to memory of 380	2196	b0c2061f4acbdccbccdecfae5b3f4fd9b7749138a09c9a5fa36b5edc72d69ea4N.exe	82
PID 2196 wrote to memory of 380	2196	b0c2061f4acbdccbccdecfae5b3f4fd9b7749138a09c9a5fa36b5edc72d69ea4N.exe	82
PID 2196 wrote to memory of 380	2196	b0c2061f4acbdccbccdecfae5b3f4fd9b7749138a09c9a5fa36b5edc72d69ea4N.exe	82
PID 380 wrote to memory of 4992	380	b0c2061f4acbdccbccdecfae5b3f4fd9b7749138a09c9a5fa36b5edc72d69ea4N.exe	83
PID 380 wrote to memory of 4992	380	b0c2061f4acbdccbccdecfae5b3f4fd9b7749138a09c9a5fa36b5edc72d69ea4N.exe	83
PID 380 wrote to memory of 4992	380	b0c2061f4acbdccbccdecfae5b3f4fd9b7749138a09c9a5fa36b5edc72d69ea4N.exe	83
PID 4992 wrote to memory of 3264	4992	cmd.exe	86
PID 4992 wrote to memory of 3264	4992	cmd.exe	86
PID 4992 wrote to memory of 3264	4992	cmd.exe	86
PID 380 wrote to memory of 1684	380	b0c2061f4acbdccbccdecfae5b3f4fd9b7749138a09c9a5fa36b5edc72d69ea4N.exe	87
PID 380 wrote to memory of 1684	380	b0c2061f4acbdccbccdecfae5b3f4fd9b7749138a09c9a5fa36b5edc72d69ea4N.exe	87
PID 380 wrote to memory of 1684	380	b0c2061f4acbdccbccdecfae5b3f4fd9b7749138a09c9a5fa36b5edc72d69ea4N.exe	87
PID 1684 wrote to memory of 1248	1684	csrsll.exe	93
PID 1684 wrote to memory of 1248	1684	csrsll.exe	93
PID 1684 wrote to memory of 1248	1684	csrsll.exe	93
PID 1684 wrote to memory of 1248	1684	csrsll.exe	93
PID 1684 wrote to memory of 1248	1684	csrsll.exe	93
PID 1684 wrote to memory of 1248	1684	csrsll.exe	93
PID 1684 wrote to memory of 1248	1684	csrsll.exe	93
PID 1684 wrote to memory of 1248	1684	csrsll.exe	93
PID 1684 wrote to memory of 2840	1684	csrsll.exe	94
PID 1684 wrote to memory of 2840	1684	csrsll.exe	94
PID 1684 wrote to memory of 2840	1684	csrsll.exe	94
PID 1684 wrote to memory of 2840	1684	csrsll.exe	94
PID 1684 wrote to memory of 2840	1684	csrsll.exe	94
PID 1684 wrote to memory of 2840	1684	csrsll.exe	94
PID 1684 wrote to memory of 2840	1684	csrsll.exe	94
PID 1684 wrote to memory of 2840	1684	csrsll.exe	94

C:\Users\Admin\AppData\Local\Temp\b0c2061f4acbdccbccdecfae5b3f4fd9b7749138a09c9a5fa36b5edc72d69ea4N.exe
"C:\Users\Admin\AppData\Local\Temp\b0c2061f4acbdccbccdecfae5b3f4fd9b7749138a09c9a5fa36b5edc72d69ea4N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2196
- C:\Users\Admin\AppData\Local\Temp\b0c2061f4acbdccbccdecfae5b3f4fd9b7749138a09c9a5fa36b5edc72d69ea4N.exe
  "C:\Users\Admin\AppData\Local\Temp\b0c2061f4acbdccbccdecfae5b3f4fd9b7749138a09c9a5fa36b5edc72d69ea4N.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:380
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\AMQNB.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4992
  - - 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:3264
- - 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:1684
  - - 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:1248
  - - 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:2840

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\AMQNB.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
f53c34917c2d97c639839a2a0006d0d9

SHA1
45179d4b7211f9f32ef8d76422408c474b2fb1cf

SHA256
19f280afd30ca1f454e2114435fb7d32ae3598c75fd2a68eae45b7b549e1aa38

SHA512
aa9e015f004f6fb719d73db501a286aa5ad51f84b4726f758cf8a8868ccc6fa8415a2dee018e9464768a53703f9119a4417288e04271fba79bc7256fdfb75f5f

Download Submit
memory/380-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/380-59-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/380-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/380-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/380-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/380-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1248-62-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1684-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1684-58-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1684-37-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1684-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2196-3-0x00000000021C0000-0x00000000021C2000-memory.dmp

Filesize
8KB

Download
memory/2196-6-0x00000000021F0000-0x00000000021F2000-memory.dmp

Filesize
8KB

Download
memory/2196-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2196-4-0x00000000021D0000-0x00000000021D2000-memory.dmp

Filesize
8KB

Download
memory/2196-12-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2196-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2840-63-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2840-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2840-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2840-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2840-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2840-46-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads