modiloader | a7e18c62ec283f926143c44c212782c9d83164c38a0ae3e8b0f5827893c06e25

Analysis

max time kernel
119s
max time network
121s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
31-12-2024 02:43

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General

Target

a7e18c62ec283f926143c44c212782c9d83164c38a0ae3e8b0f5827893c06e25N.exe
Size

326KB
MD5

a169bc7115209e104478f529455cda50
SHA1

d2d2debc4d9bfc2e6abb1d8a5c0adfb992050740
SHA256

a7e18c62ec283f926143c44c212782c9d83164c38a0ae3e8b0f5827893c06e25
SHA512

964cfe077b15f9b5b269e2a6934fda1591fa92509def381af9f58dc1fea29949cb50b328ab0bf271068f874d9c3c3f33f777c0d4ef74e286454d0852472cdefc
SSDEEP

3072:ce2A0wxDqUpM5scww4chO+O1BmP5DG0sg3i4XZ9WvDZHwdRX/L+gP38XVF:csxD5cwohO+O1sVG0/pZ6iPC8e

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/2016-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2016-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2016-51-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2016-60-0x0000000000400000-0x0000000000414000-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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	a7e18c62ec283f926143c44c212782c9d83164c38a0ae3e8b0f5827893c06e25N.exe

Executes dropped EXE 3 IoCs

pid	Process
3300	csrsll.exe
836	csrsll.exe
2016	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-1-5-21-493223053-2004649691-1575712786-1000\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 1408 set thread context of 4216	1408	a7e18c62ec283f926143c44c212782c9d83164c38a0ae3e8b0f5827893c06e25N.exe	83
PID 3300 set thread context of 836	3300	csrsll.exe	101
PID 3300 set thread context of 2016	3300	csrsll.exe	102

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1408-0-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/1408-5-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/4216-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4216-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4216-11-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1408-14-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/files/0x000b000000023b7d-28.dat	upx
behavioral2/memory/4216-38-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3300-39-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/3300-40-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/2016-44-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2016-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2016-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2016-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2016-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3300-56-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/4216-57-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/836-59-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2016-60-0x0000000000400000-0x0000000000414000-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	a7e18c62ec283f926143c44c212782c9d83164c38a0ae3e8b0f5827893c06e25N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a7e18c62ec283f926143c44c212782c9d83164c38a0ae3e8b0f5827893c06e25N.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

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	836	csrsll.exe
Token: SeDebugPrivilege	836	csrsll.exe
Token: SeDebugPrivilege	836	csrsll.exe
Token: SeDebugPrivilege	836	csrsll.exe
Token: SeDebugPrivilege	836	csrsll.exe
Token: SeDebugPrivilege	836	csrsll.exe
Token: SeDebugPrivilege	836	csrsll.exe
Token: SeDebugPrivilege	836	csrsll.exe
Token: SeDebugPrivilege	836	csrsll.exe
Token: SeDebugPrivilege	836	csrsll.exe
Token: SeDebugPrivilege	836	csrsll.exe
Token: SeDebugPrivilege	836	csrsll.exe
Token: SeDebugPrivilege	836	csrsll.exe
Token: SeDebugPrivilege	836	csrsll.exe
Token: SeDebugPrivilege	836	csrsll.exe
Token: SeDebugPrivilege	836	csrsll.exe
Token: SeDebugPrivilege	836	csrsll.exe
Token: SeDebugPrivilege	836	csrsll.exe
Token: SeDebugPrivilege	836	csrsll.exe
Token: SeDebugPrivilege	836	csrsll.exe
Token: SeDebugPrivilege	836	csrsll.exe
Token: SeDebugPrivilege	836	csrsll.exe
Token: SeDebugPrivilege	836	csrsll.exe
Token: SeDebugPrivilege	836	csrsll.exe
Token: SeDebugPrivilege	836	csrsll.exe
Token: SeDebugPrivilege	836	csrsll.exe
Token: SeDebugPrivilege	836	csrsll.exe
Token: SeDebugPrivilege	836	csrsll.exe
Token: SeDebugPrivilege	836	csrsll.exe
Token: SeDebugPrivilege	836	csrsll.exe
Token: SeDebugPrivilege	836	csrsll.exe
Token: SeDebugPrivilege	836	csrsll.exe
Token: SeDebugPrivilege	836	csrsll.exe
Token: SeDebugPrivilege	836	csrsll.exe
Token: SeDebugPrivilege	836	csrsll.exe
Token: SeDebugPrivilege	836	csrsll.exe
Token: SeDebugPrivilege	836	csrsll.exe
Token: SeDebugPrivilege	836	csrsll.exe
Token: SeDebugPrivilege	836	csrsll.exe
Token: SeDebugPrivilege	836	csrsll.exe
Token: SeDebugPrivilege	836	csrsll.exe
Token: SeDebugPrivilege	836	csrsll.exe
Token: SeDebugPrivilege	836	csrsll.exe
Token: SeDebugPrivilege	836	csrsll.exe
Token: SeDebugPrivilege	836	csrsll.exe
Token: SeDebugPrivilege	836	csrsll.exe
Token: SeDebugPrivilege	836	csrsll.exe
Token: SeDebugPrivilege	836	csrsll.exe
Token: SeDebugPrivilege	836	csrsll.exe
Token: SeDebugPrivilege	836	csrsll.exe
Token: SeDebugPrivilege	836	csrsll.exe
Token: SeDebugPrivilege	836	csrsll.exe
Token: SeDebugPrivilege	836	csrsll.exe
Token: SeDebugPrivilege	836	csrsll.exe
Token: SeDebugPrivilege	836	csrsll.exe
Token: SeDebugPrivilege	836	csrsll.exe
Token: SeDebugPrivilege	836	csrsll.exe
Token: SeDebugPrivilege	836	csrsll.exe
Token: SeDebugPrivilege	836	csrsll.exe
Token: SeDebugPrivilege	836	csrsll.exe
Token: SeDebugPrivilege	836	csrsll.exe
Token: SeDebugPrivilege	836	csrsll.exe
Token: SeDebugPrivilege	836	csrsll.exe
Token: SeDebugPrivilege	836	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1408	a7e18c62ec283f926143c44c212782c9d83164c38a0ae3e8b0f5827893c06e25N.exe
4216	a7e18c62ec283f926143c44c212782c9d83164c38a0ae3e8b0f5827893c06e25N.exe
3300	csrsll.exe
836	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 1408 wrote to memory of 4216	1408	a7e18c62ec283f926143c44c212782c9d83164c38a0ae3e8b0f5827893c06e25N.exe	83
PID 1408 wrote to memory of 4216	1408	a7e18c62ec283f926143c44c212782c9d83164c38a0ae3e8b0f5827893c06e25N.exe	83
PID 1408 wrote to memory of 4216	1408	a7e18c62ec283f926143c44c212782c9d83164c38a0ae3e8b0f5827893c06e25N.exe	83
PID 1408 wrote to memory of 4216	1408	a7e18c62ec283f926143c44c212782c9d83164c38a0ae3e8b0f5827893c06e25N.exe	83
PID 1408 wrote to memory of 4216	1408	a7e18c62ec283f926143c44c212782c9d83164c38a0ae3e8b0f5827893c06e25N.exe	83
PID 1408 wrote to memory of 4216	1408	a7e18c62ec283f926143c44c212782c9d83164c38a0ae3e8b0f5827893c06e25N.exe	83
PID 1408 wrote to memory of 4216	1408	a7e18c62ec283f926143c44c212782c9d83164c38a0ae3e8b0f5827893c06e25N.exe	83
PID 1408 wrote to memory of 4216	1408	a7e18c62ec283f926143c44c212782c9d83164c38a0ae3e8b0f5827893c06e25N.exe	83
PID 4216 wrote to memory of 1788	4216	a7e18c62ec283f926143c44c212782c9d83164c38a0ae3e8b0f5827893c06e25N.exe	90
PID 4216 wrote to memory of 1788	4216	a7e18c62ec283f926143c44c212782c9d83164c38a0ae3e8b0f5827893c06e25N.exe	90
PID 4216 wrote to memory of 1788	4216	a7e18c62ec283f926143c44c212782c9d83164c38a0ae3e8b0f5827893c06e25N.exe	90
PID 1788 wrote to memory of 1244	1788	cmd.exe	94
PID 1788 wrote to memory of 1244	1788	cmd.exe	94
PID 1788 wrote to memory of 1244	1788	cmd.exe	94
PID 4216 wrote to memory of 3300	4216	a7e18c62ec283f926143c44c212782c9d83164c38a0ae3e8b0f5827893c06e25N.exe	95
PID 4216 wrote to memory of 3300	4216	a7e18c62ec283f926143c44c212782c9d83164c38a0ae3e8b0f5827893c06e25N.exe	95
PID 4216 wrote to memory of 3300	4216	a7e18c62ec283f926143c44c212782c9d83164c38a0ae3e8b0f5827893c06e25N.exe	95
PID 3300 wrote to memory of 836	3300	csrsll.exe	101
PID 3300 wrote to memory of 836	3300	csrsll.exe	101
PID 3300 wrote to memory of 836	3300	csrsll.exe	101
PID 3300 wrote to memory of 836	3300	csrsll.exe	101
PID 3300 wrote to memory of 836	3300	csrsll.exe	101
PID 3300 wrote to memory of 836	3300	csrsll.exe	101
PID 3300 wrote to memory of 836	3300	csrsll.exe	101
PID 3300 wrote to memory of 836	3300	csrsll.exe	101
PID 3300 wrote to memory of 2016	3300	csrsll.exe	102
PID 3300 wrote to memory of 2016	3300	csrsll.exe	102
PID 3300 wrote to memory of 2016	3300	csrsll.exe	102
PID 3300 wrote to memory of 2016	3300	csrsll.exe	102
PID 3300 wrote to memory of 2016	3300	csrsll.exe	102
PID 3300 wrote to memory of 2016	3300	csrsll.exe	102
PID 3300 wrote to memory of 2016	3300	csrsll.exe	102
PID 3300 wrote to memory of 2016	3300	csrsll.exe	102

C:\Users\Admin\AppData\Local\Temp\a7e18c62ec283f926143c44c212782c9d83164c38a0ae3e8b0f5827893c06e25N.exe
"C:\Users\Admin\AppData\Local\Temp\a7e18c62ec283f926143c44c212782c9d83164c38a0ae3e8b0f5827893c06e25N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1408
- C:\Users\Admin\AppData\Local\Temp\a7e18c62ec283f926143c44c212782c9d83164c38a0ae3e8b0f5827893c06e25N.exe
  "C:\Users\Admin\AppData\Local\Temp\a7e18c62ec283f926143c44c212782c9d83164c38a0ae3e8b0f5827893c06e25N.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4216
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\IQFPF.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1788
  - - 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:1244
- - 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:3300
  - - 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:836
  - - 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:2016

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\IQFPF.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
326KB

MD5
4e9846863cec4473d262779fe0dcbe32

SHA1
39921562372473fd44885f569504bd14e9609064

SHA256
d8c4b03202590f441c7390257ff3813a992640a4a792cdfbc59db0e7b7269fb2

SHA512
02e5f022645b364999033e0432ea3e707233af602960a1b6b7e45aaea157b442b4bb82274c7fae2224cc341ee8fa69944b2e1725cebd332b9ea6a45ec2a92b6e

Download Submit
memory/836-59-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1408-3-0x00000000022D0000-0x00000000022D2000-memory.dmp

Filesize
8KB

Download
memory/1408-4-0x00000000022E0000-0x00000000022E2000-memory.dmp

Filesize
8KB

Download
memory/1408-6-0x0000000002300000-0x0000000002302000-memory.dmp

Filesize
8KB

Download
memory/1408-5-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/1408-0-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/1408-14-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/2016-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2016-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2016-60-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2016-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2016-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2016-44-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3300-40-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/3300-39-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/3300-56-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/4216-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4216-11-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4216-57-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4216-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4216-38-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads