modiloader | ba59878f82c80a6d90f304303a59389159f5c95e98920ef2f9d43b8585b3a7e7

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
07/05/2024, 13:45

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General

Target
a99ac28401808fa033018d6986b63b90_NEAS.exe
Size 90KB
Sample240507-q2k4vsaa2w
SHA256 ba59878f82c80a6d90f304303a59389159f5c95e98920ef2f9d43b8585b3a7e7
MD5 a99ac28401808fa033018d6986b63b90
SHA1 9197a027c083dc643911d88c08ed0060675cc1b8
SHA512 46887ce43b29871ef59d97b999816631096b75bbd550c75b3aca091924a3ea4710600708420edc296a0862f7f74c08e5b682a10f72ca87efd91c4f606f0813d4
SSDEEP 1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDK:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3Y
MD5 SHA1 SHA512 SSDEEP

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 4 IoCs

resource	yara_rule
behavioral2/memory/5428-51-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/5428-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/5428-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/5428-57-0x0000000000400000-0x0000000000414000-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-1-5-21-3906287020-2915474608-1755617787-1000\Control Panel\International\Geo\Nation	a99ac28401808fa033018d6986b63b90_NEAS.exe

Executes dropped EXE 3 IoCs

pid	Process
2300	csrsll.exe
3680	csrsll.exe
5428	csrsll.exe

UPX packed file 17 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1160-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/640-3-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1160-4-0x00000000021C0000-0x00000000021C2000-memory.dmp	upx
behavioral2/memory/640-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1160-10-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/640-11-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x0008000000023419-27.dat	upx
behavioral2/memory/2300-35-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2300-43-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/5428-41-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/5428-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/5428-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/5428-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/640-55-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/5428-49-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3680-56-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/5428-57-0x0000000000400000-0x0000000000414000-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-1-5-21-3906287020-2915474608-1755617787-1000\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 1160 set thread context of 640	1160	a99ac28401808fa033018d6986b63b90_NEAS.exe	89
PID 2300 set thread context of 3680	2300	csrsll.exe	98
PID 2300 set thread context of 5428	2300	csrsll.exe	99

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	3680	csrsll.exe
Token: SeDebugPrivilege	3680	csrsll.exe
Token: SeDebugPrivilege	3680	csrsll.exe
Token: SeDebugPrivilege	3680	csrsll.exe
Token: SeDebugPrivilege	3680	csrsll.exe
Token: SeDebugPrivilege	3680	csrsll.exe
Token: SeDebugPrivilege	3680	csrsll.exe
Token: SeDebugPrivilege	3680	csrsll.exe
Token: SeDebugPrivilege	3680	csrsll.exe
Token: SeDebugPrivilege	3680	csrsll.exe
Token: SeDebugPrivilege	3680	csrsll.exe
Token: SeDebugPrivilege	3680	csrsll.exe
Token: SeDebugPrivilege	3680	csrsll.exe
Token: SeDebugPrivilege	3680	csrsll.exe
Token: SeDebugPrivilege	3680	csrsll.exe
Token: SeDebugPrivilege	3680	csrsll.exe
Token: SeDebugPrivilege	3680	csrsll.exe
Token: SeDebugPrivilege	3680	csrsll.exe
Token: SeDebugPrivilege	3680	csrsll.exe
Token: SeDebugPrivilege	3680	csrsll.exe
Token: SeDebugPrivilege	3680	csrsll.exe
Token: SeDebugPrivilege	3680	csrsll.exe
Token: SeDebugPrivilege	3680	csrsll.exe
Token: SeDebugPrivilege	3680	csrsll.exe
Token: SeDebugPrivilege	3680	csrsll.exe
Token: SeDebugPrivilege	3680	csrsll.exe
Token: SeDebugPrivilege	3680	csrsll.exe
Token: SeDebugPrivilege	3680	csrsll.exe
Token: SeDebugPrivilege	3680	csrsll.exe
Token: SeDebugPrivilege	3680	csrsll.exe
Token: SeDebugPrivilege	3680	csrsll.exe
Token: SeDebugPrivilege	3680	csrsll.exe
Token: SeDebugPrivilege	3680	csrsll.exe
Token: SeDebugPrivilege	3680	csrsll.exe
Token: SeDebugPrivilege	3680	csrsll.exe
Token: SeDebugPrivilege	3680	csrsll.exe
Token: SeDebugPrivilege	3680	csrsll.exe
Token: SeDebugPrivilege	3680	csrsll.exe
Token: SeDebugPrivilege	3680	csrsll.exe
Token: SeDebugPrivilege	3680	csrsll.exe
Token: SeDebugPrivilege	3680	csrsll.exe
Token: SeDebugPrivilege	3680	csrsll.exe
Token: SeDebugPrivilege	3680	csrsll.exe
Token: SeDebugPrivilege	3680	csrsll.exe
Token: SeDebugPrivilege	3680	csrsll.exe
Token: SeDebugPrivilege	3680	csrsll.exe
Token: SeDebugPrivilege	3680	csrsll.exe
Token: SeDebugPrivilege	3680	csrsll.exe
Token: SeDebugPrivilege	3680	csrsll.exe
Token: SeDebugPrivilege	3680	csrsll.exe
Token: SeDebugPrivilege	3680	csrsll.exe
Token: SeDebugPrivilege	3680	csrsll.exe
Token: SeDebugPrivilege	3680	csrsll.exe
Token: SeDebugPrivilege	3680	csrsll.exe
Token: SeDebugPrivilege	3680	csrsll.exe
Token: SeDebugPrivilege	3680	csrsll.exe
Token: SeDebugPrivilege	3680	csrsll.exe
Token: SeDebugPrivilege	3680	csrsll.exe
Token: SeDebugPrivilege	3680	csrsll.exe
Token: SeDebugPrivilege	3680	csrsll.exe
Token: SeDebugPrivilege	3680	csrsll.exe
Token: SeDebugPrivilege	3680	csrsll.exe
Token: SeDebugPrivilege	3680	csrsll.exe
Token: SeDebugPrivilege	3680	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1160	a99ac28401808fa033018d6986b63b90_NEAS.exe
640	a99ac28401808fa033018d6986b63b90_NEAS.exe
2300	csrsll.exe
3680	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 1160 wrote to memory of 640	1160	a99ac28401808fa033018d6986b63b90_NEAS.exe	89
PID 1160 wrote to memory of 640	1160	a99ac28401808fa033018d6986b63b90_NEAS.exe	89
PID 1160 wrote to memory of 640	1160	a99ac28401808fa033018d6986b63b90_NEAS.exe	89
PID 1160 wrote to memory of 640	1160	a99ac28401808fa033018d6986b63b90_NEAS.exe	89
PID 1160 wrote to memory of 640	1160	a99ac28401808fa033018d6986b63b90_NEAS.exe	89
PID 1160 wrote to memory of 640	1160	a99ac28401808fa033018d6986b63b90_NEAS.exe	89
PID 1160 wrote to memory of 640	1160	a99ac28401808fa033018d6986b63b90_NEAS.exe	89
PID 1160 wrote to memory of 640	1160	a99ac28401808fa033018d6986b63b90_NEAS.exe	89
PID 640 wrote to memory of 4308	640	a99ac28401808fa033018d6986b63b90_NEAS.exe	91
PID 640 wrote to memory of 4308	640	a99ac28401808fa033018d6986b63b90_NEAS.exe	91
PID 640 wrote to memory of 4308	640	a99ac28401808fa033018d6986b63b90_NEAS.exe	91
PID 4308 wrote to memory of 5644	4308	cmd.exe	94
PID 4308 wrote to memory of 5644	4308	cmd.exe	94
PID 4308 wrote to memory of 5644	4308	cmd.exe	94
PID 640 wrote to memory of 2300	640	a99ac28401808fa033018d6986b63b90_NEAS.exe	95
PID 640 wrote to memory of 2300	640	a99ac28401808fa033018d6986b63b90_NEAS.exe	95
PID 640 wrote to memory of 2300	640	a99ac28401808fa033018d6986b63b90_NEAS.exe	95
PID 2300 wrote to memory of 3680	2300	csrsll.exe	98
PID 2300 wrote to memory of 3680	2300	csrsll.exe	98
PID 2300 wrote to memory of 3680	2300	csrsll.exe	98
PID 2300 wrote to memory of 3680	2300	csrsll.exe	98
PID 2300 wrote to memory of 3680	2300	csrsll.exe	98
PID 2300 wrote to memory of 3680	2300	csrsll.exe	98
PID 2300 wrote to memory of 3680	2300	csrsll.exe	98
PID 2300 wrote to memory of 3680	2300	csrsll.exe	98
PID 2300 wrote to memory of 5428	2300	csrsll.exe	99
PID 2300 wrote to memory of 5428	2300	csrsll.exe	99
PID 2300 wrote to memory of 5428	2300	csrsll.exe	99
PID 2300 wrote to memory of 5428	2300	csrsll.exe	99
PID 2300 wrote to memory of 5428	2300	csrsll.exe	99
PID 2300 wrote to memory of 5428	2300	csrsll.exe	99
PID 2300 wrote to memory of 5428	2300	csrsll.exe	99
PID 2300 wrote to memory of 5428	2300	csrsll.exe	99

C:\Users\Admin\AppData\Local\Temp\a99ac28401808fa033018d6986b63b90_NEAS.exe
"C:\Users\Admin\AppData\Local\Temp\a99ac28401808fa033018d6986b63b90_NEAS.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1160
- C:\Users\Admin\AppData\Local\Temp\a99ac28401808fa033018d6986b63b90_NEAS.exe
  "C:\Users\Admin\AppData\Local\Temp\a99ac28401808fa033018d6986b63b90_NEAS.exe"
  2⤵
  - Checks computer location settings
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:640
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\OCDXU.bat" "
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:4308
  - - 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:5644
- - 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:2300
  - - 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:3680
  - - C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
      4⤵
      Executes dropped EXE
      PID:5428

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

OCDXU.txt

Path C:\Users\Admin\AppData\Local\Temp\OCDXU.txt
Size 145B
SHA256 08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff
MD5 4eb61ec7816c34ec8c125acadc57ec1b
SHA1 b0015cc865c0bb1a027be663027d3829401a31cc
SHA512 f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1
MD5 SHA1 SHA512

Submit Download

csrsll.exe

Path C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
Size 90KB
SHA256 e5ab6080e99017417934b12d123456843785ac2495daf543d1e97c04dbadcac1
MD5 14670e9e0ec2e2ea4f131133bd45f156
SHA1 5fc1426c68df2be2f10b8df97f10258390428f19
SHA512 bb74ec020bf10708942bcf7433673ef1ee9367f0d38906188c48a90767316ac92d982fa03c633c17146fccc49ca9876f3fa84a2f95fa7860eccfc0eed1656d9e
SSDEEP 1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDK:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3Y
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/640-54-0x0000000000410000-0x00000000004D9000-memory.dmp

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memory/640-3-0x0000000000400000-0x000000000040B000-memory.dmp

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memory/640-9-0x0000000000400000-0x000000000040B000-memory.dmp

Download

memory/640-11-0x0000000000400000-0x000000000040B000-memory.dmp

Download

memory/640-55-0x0000000000400000-0x000000000040B000-memory.dmp

Download

memory/1160-6-0x0000000002A30000-0x0000000002A32000-memory.dmp

Download

memory/1160-5-0x00000000021D0000-0x00000000021D2000-memory.dmp

Download

memory/1160-4-0x00000000021C0000-0x00000000021C2000-memory.dmp

Download

memory/1160-10-0x0000000000400000-0x0000000000453000-memory.dmp

Download

memory/1160-0-0x0000000000400000-0x0000000000453000-memory.dmp

Download

memory/2300-35-0x0000000000400000-0x0000000000453000-memory.dmp

Download

memory/2300-43-0x0000000000400000-0x0000000000453000-memory.dmp

Download

memory/3680-56-0x0000000000400000-0x000000000040B000-memory.dmp

Download

memory/5428-51-0x0000000000400000-0x0000000000414000-memory.dmp

Download

memory/5428-52-0x0000000000400000-0x0000000000414000-memory.dmp

Download

memory/5428-53-0x0000000000400000-0x0000000000414000-memory.dmp

Download

memory/5428-41-0x0000000000400000-0x0000000000414000-memory.dmp

Download

memory/5428-49-0x0000000000400000-0x0000000000414000-memory.dmp

Download

memory/5428-57-0x0000000000400000-0x0000000000414000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads