modiloader | d28457af0ac88284f2372fca429e72f34b9a5dc71618ab331e1f96f319de0d37

Analysis

max time kernel
119s
max time network
119s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
04/12/2024, 00:58

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General

Target

d28457af0ac88284f2372fca429e72f34b9a5dc71618ab331e1f96f319de0d37.exe
Size

300KB
MD5

5b553bb30549211be9e171688690ebe0
SHA1

bcd8c66a959462cfb01cdd00742392cab80f82bb
SHA256

d28457af0ac88284f2372fca429e72f34b9a5dc71618ab331e1f96f319de0d37
SHA512

40f8a5a5ae30ad7020805faac0ff3f29cd363623f8b18c7e619cfd807ddabd1fbf3a4fa22bdd11749a12d5261c4672c5235acbc2f528dfab44bf8760c0ffefb3
SSDEEP

3072:Ue2A0wxDqUpM5scww4chO+O1BmP5DG0sg3i4XZ9WvDZHwdRX/L+gP38Gy:UsxD5cwohO+O1sVG0/pZ6iPC8I

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/3736-51-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3736-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3736-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3736-57-0x0000000000400000-0x0000000000414000-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-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	d28457af0ac88284f2372fca429e72f34b9a5dc71618ab331e1f96f319de0d37.exe

Executes dropped EXE 3 IoCs

pid	Process
2140	csrsll.exe
4968	csrsll.exe
3736	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-1-5-21-2437139445-1151884604-3026847218-1000\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 1444 set thread context of 3008	1444	d28457af0ac88284f2372fca429e72f34b9a5dc71618ab331e1f96f319de0d37.exe	88
PID 2140 set thread context of 4968	2140	csrsll.exe	101
PID 2140 set thread context of 3736	2140	csrsll.exe	102

UPX packed file 12 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3008-6-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3008-8-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3008-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3008-36-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3736-44-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3736-49-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3736-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3736-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3008-53-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3736-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4968-56-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3736-57-0x0000000000400000-0x0000000000414000-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	d28457af0ac88284f2372fca429e72f34b9a5dc71618ab331e1f96f319de0d37.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d28457af0ac88284f2372fca429e72f34b9a5dc71618ab331e1f96f319de0d37.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	4968	csrsll.exe
Token: SeDebugPrivilege	4968	csrsll.exe
Token: SeDebugPrivilege	4968	csrsll.exe
Token: SeDebugPrivilege	4968	csrsll.exe
Token: SeDebugPrivilege	4968	csrsll.exe
Token: SeDebugPrivilege	4968	csrsll.exe
Token: SeDebugPrivilege	4968	csrsll.exe
Token: SeDebugPrivilege	4968	csrsll.exe
Token: SeDebugPrivilege	4968	csrsll.exe
Token: SeDebugPrivilege	4968	csrsll.exe
Token: SeDebugPrivilege	4968	csrsll.exe
Token: SeDebugPrivilege	4968	csrsll.exe
Token: SeDebugPrivilege	4968	csrsll.exe
Token: SeDebugPrivilege	4968	csrsll.exe
Token: SeDebugPrivilege	4968	csrsll.exe
Token: SeDebugPrivilege	4968	csrsll.exe
Token: SeDebugPrivilege	4968	csrsll.exe
Token: SeDebugPrivilege	4968	csrsll.exe
Token: SeDebugPrivilege	4968	csrsll.exe
Token: SeDebugPrivilege	4968	csrsll.exe
Token: SeDebugPrivilege	4968	csrsll.exe
Token: SeDebugPrivilege	4968	csrsll.exe
Token: SeDebugPrivilege	4968	csrsll.exe
Token: SeDebugPrivilege	4968	csrsll.exe
Token: SeDebugPrivilege	4968	csrsll.exe
Token: SeDebugPrivilege	4968	csrsll.exe
Token: SeDebugPrivilege	4968	csrsll.exe
Token: SeDebugPrivilege	4968	csrsll.exe
Token: SeDebugPrivilege	4968	csrsll.exe
Token: SeDebugPrivilege	4968	csrsll.exe
Token: SeDebugPrivilege	4968	csrsll.exe
Token: SeDebugPrivilege	4968	csrsll.exe
Token: SeDebugPrivilege	4968	csrsll.exe
Token: SeDebugPrivilege	4968	csrsll.exe
Token: SeDebugPrivilege	4968	csrsll.exe
Token: SeDebugPrivilege	4968	csrsll.exe
Token: SeDebugPrivilege	4968	csrsll.exe
Token: SeDebugPrivilege	4968	csrsll.exe
Token: SeDebugPrivilege	4968	csrsll.exe
Token: SeDebugPrivilege	4968	csrsll.exe
Token: SeDebugPrivilege	4968	csrsll.exe
Token: SeDebugPrivilege	4968	csrsll.exe
Token: SeDebugPrivilege	4968	csrsll.exe
Token: SeDebugPrivilege	4968	csrsll.exe
Token: SeDebugPrivilege	4968	csrsll.exe
Token: SeDebugPrivilege	4968	csrsll.exe
Token: SeDebugPrivilege	4968	csrsll.exe
Token: SeDebugPrivilege	4968	csrsll.exe
Token: SeDebugPrivilege	4968	csrsll.exe
Token: SeDebugPrivilege	4968	csrsll.exe
Token: SeDebugPrivilege	4968	csrsll.exe
Token: SeDebugPrivilege	4968	csrsll.exe
Token: SeDebugPrivilege	4968	csrsll.exe
Token: SeDebugPrivilege	4968	csrsll.exe
Token: SeDebugPrivilege	4968	csrsll.exe
Token: SeDebugPrivilege	4968	csrsll.exe
Token: SeDebugPrivilege	4968	csrsll.exe
Token: SeDebugPrivilege	4968	csrsll.exe
Token: SeDebugPrivilege	4968	csrsll.exe
Token: SeDebugPrivilege	4968	csrsll.exe
Token: SeDebugPrivilege	4968	csrsll.exe
Token: SeDebugPrivilege	4968	csrsll.exe
Token: SeDebugPrivilege	4968	csrsll.exe
Token: SeDebugPrivilege	4968	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1444	d28457af0ac88284f2372fca429e72f34b9a5dc71618ab331e1f96f319de0d37.exe
3008	d28457af0ac88284f2372fca429e72f34b9a5dc71618ab331e1f96f319de0d37.exe
2140	csrsll.exe
4968	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 1444 wrote to memory of 3008	1444	d28457af0ac88284f2372fca429e72f34b9a5dc71618ab331e1f96f319de0d37.exe	88
PID 1444 wrote to memory of 3008	1444	d28457af0ac88284f2372fca429e72f34b9a5dc71618ab331e1f96f319de0d37.exe	88
PID 1444 wrote to memory of 3008	1444	d28457af0ac88284f2372fca429e72f34b9a5dc71618ab331e1f96f319de0d37.exe	88
PID 1444 wrote to memory of 3008	1444	d28457af0ac88284f2372fca429e72f34b9a5dc71618ab331e1f96f319de0d37.exe	88
PID 1444 wrote to memory of 3008	1444	d28457af0ac88284f2372fca429e72f34b9a5dc71618ab331e1f96f319de0d37.exe	88
PID 1444 wrote to memory of 3008	1444	d28457af0ac88284f2372fca429e72f34b9a5dc71618ab331e1f96f319de0d37.exe	88
PID 1444 wrote to memory of 3008	1444	d28457af0ac88284f2372fca429e72f34b9a5dc71618ab331e1f96f319de0d37.exe	88
PID 1444 wrote to memory of 3008	1444	d28457af0ac88284f2372fca429e72f34b9a5dc71618ab331e1f96f319de0d37.exe	88
PID 3008 wrote to memory of 1676	3008	d28457af0ac88284f2372fca429e72f34b9a5dc71618ab331e1f96f319de0d37.exe	91
PID 3008 wrote to memory of 1676	3008	d28457af0ac88284f2372fca429e72f34b9a5dc71618ab331e1f96f319de0d37.exe	91
PID 3008 wrote to memory of 1676	3008	d28457af0ac88284f2372fca429e72f34b9a5dc71618ab331e1f96f319de0d37.exe	91
PID 1676 wrote to memory of 4588	1676	cmd.exe	95
PID 1676 wrote to memory of 4588	1676	cmd.exe	95
PID 1676 wrote to memory of 4588	1676	cmd.exe	95
PID 3008 wrote to memory of 2140	3008	d28457af0ac88284f2372fca429e72f34b9a5dc71618ab331e1f96f319de0d37.exe	96
PID 3008 wrote to memory of 2140	3008	d28457af0ac88284f2372fca429e72f34b9a5dc71618ab331e1f96f319de0d37.exe	96
PID 3008 wrote to memory of 2140	3008	d28457af0ac88284f2372fca429e72f34b9a5dc71618ab331e1f96f319de0d37.exe	96
PID 2140 wrote to memory of 4968	2140	csrsll.exe	101
PID 2140 wrote to memory of 4968	2140	csrsll.exe	101
PID 2140 wrote to memory of 4968	2140	csrsll.exe	101
PID 2140 wrote to memory of 4968	2140	csrsll.exe	101
PID 2140 wrote to memory of 4968	2140	csrsll.exe	101
PID 2140 wrote to memory of 4968	2140	csrsll.exe	101
PID 2140 wrote to memory of 4968	2140	csrsll.exe	101
PID 2140 wrote to memory of 4968	2140	csrsll.exe	101
PID 2140 wrote to memory of 3736	2140	csrsll.exe	102
PID 2140 wrote to memory of 3736	2140	csrsll.exe	102
PID 2140 wrote to memory of 3736	2140	csrsll.exe	102
PID 2140 wrote to memory of 3736	2140	csrsll.exe	102
PID 2140 wrote to memory of 3736	2140	csrsll.exe	102
PID 2140 wrote to memory of 3736	2140	csrsll.exe	102
PID 2140 wrote to memory of 3736	2140	csrsll.exe	102
PID 2140 wrote to memory of 3736	2140	csrsll.exe	102

C:\Users\Admin\AppData\Local\Temp\d28457af0ac88284f2372fca429e72f34b9a5dc71618ab331e1f96f319de0d37.exe
"C:\Users\Admin\AppData\Local\Temp\d28457af0ac88284f2372fca429e72f34b9a5dc71618ab331e1f96f319de0d37.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1444
- C:\Users\Admin\AppData\Local\Temp\d28457af0ac88284f2372fca429e72f34b9a5dc71618ab331e1f96f319de0d37.exe
  "C:\Users\Admin\AppData\Local\Temp\d28457af0ac88284f2372fca429e72f34b9a5dc71618ab331e1f96f319de0d37.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3008
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\QDHDB.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1676
  - - 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:4588
- - 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:2140
  - - 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:4968
  - - 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:3736

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\QDHDB.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
300KB

MD5
b5d8efffc0a2070bf1bc42e25c7a76b1

SHA1
ea73ff611f1f0dfdab43b1379c0e0095a3be9bc8

SHA256
6a142035609802d2ec91f93381995d2e15792e7d2c1883967f28cb6a2d4e1c47

SHA512
272cbb400795409005421fd08bdbafb62acf07bcee12088784999757036ea11633899ccfefda6e03129f247a49be91abbb213b4598a4358e6cb2179c0f254962

Download Submit
memory/1444-3-0x0000000002B60000-0x0000000002B62000-memory.dmp

Filesize
8KB

Download
memory/1444-4-0x0000000002C70000-0x0000000002C72000-memory.dmp

Filesize
8KB

Download
memory/1444-5-0x0000000002C90000-0x0000000002C92000-memory.dmp

Filesize
8KB

Download
memory/1444-0-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/2140-37-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/2140-50-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/2140-38-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/3008-8-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3008-36-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3008-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3008-6-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3008-53-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3736-44-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3736-49-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3736-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3736-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3736-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3736-57-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4968-56-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads