modiloader | e66cdbc92dc61b7944f3dd630af7c0acc4705a3c18c5c5af9cceb979c1c8b13a

Analysis

max time kernel
150s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20231023-en
resource tags

arch:x64arch:x86image:win10v2004-20231023-enlocale:en-usos:windows10-2004-x64system
submitted
31/10/2023, 08:55

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General

Target

NEAS.7ffbe84ed0834eb71d3d4bd47bfa7f60.exe
Size

90KB
MD5

7ffbe84ed0834eb71d3d4bd47bfa7f60
SHA1

98938c6f4f716b4464e643afd9c76c2d8ddb8fb8
SHA256

e66cdbc92dc61b7944f3dd630af7c0acc4705a3c18c5c5af9cceb979c1c8b13a
SHA512

3c6e532011e792d96919fb65e4b6704ea83ffa5f0d0c9a60fde4c39ce021fdac85be15b8ad2755765baa1ae7da6ad63aab514a0615cbbd00ff07113c577ec588
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/3364-59-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3364-61-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3364-65-0x0000000000400000-0x0000000000414000-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-1-5-21-2231940048-779848787-2990559741-1000\Control Panel\International\Geo\Nation	NEAS.7ffbe84ed0834eb71d3d4bd47bfa7f60.exe

Executes dropped EXE 3 IoCs

pid	Process
3568	csrsll.exe
4196	csrsll.exe
3364	csrsll.exe

UPX packed file 22 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4272-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4272-3-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4496-8-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4272-11-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4496-10-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4496-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x0011000000022d8c-29.dat	upx
behavioral2/files/0x0011000000022d8c-35.dat	upx
behavioral2/files/0x0011000000022d8c-36.dat	upx
behavioral2/memory/3568-37-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4496-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3568-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x0011000000022d8c-47.dat	upx
behavioral2/memory/3364-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/files/0x0011000000022d8c-52.dat	upx
behavioral2/memory/3364-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3568-57-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3364-59-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3364-61-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4496-63-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4196-64-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3364-65-0x0000000000400000-0x0000000000414000-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-1-5-21-2231940048-779848787-2990559741-1000\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 4272 set thread context of 4496	4272	NEAS.7ffbe84ed0834eb71d3d4bd47bfa7f60.exe	93
PID 3568 set thread context of 4196	3568	csrsll.exe	100
PID 3568 set thread context of 3364	3568	csrsll.exe	101

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	4196	csrsll.exe
Token: SeDebugPrivilege	4196	csrsll.exe
Token: SeDebugPrivilege	4196	csrsll.exe
Token: SeDebugPrivilege	4196	csrsll.exe
Token: SeDebugPrivilege	4196	csrsll.exe
Token: SeDebugPrivilege	4196	csrsll.exe
Token: SeDebugPrivilege	4196	csrsll.exe
Token: SeDebugPrivilege	4196	csrsll.exe
Token: SeDebugPrivilege	4196	csrsll.exe
Token: SeDebugPrivilege	4196	csrsll.exe
Token: SeDebugPrivilege	4196	csrsll.exe
Token: SeDebugPrivilege	4196	csrsll.exe
Token: SeDebugPrivilege	4196	csrsll.exe
Token: SeDebugPrivilege	4196	csrsll.exe
Token: SeDebugPrivilege	4196	csrsll.exe
Token: SeDebugPrivilege	4196	csrsll.exe
Token: SeDebugPrivilege	4196	csrsll.exe
Token: SeDebugPrivilege	4196	csrsll.exe
Token: SeDebugPrivilege	4196	csrsll.exe
Token: SeDebugPrivilege	4196	csrsll.exe
Token: SeDebugPrivilege	4196	csrsll.exe
Token: SeDebugPrivilege	4196	csrsll.exe
Token: SeDebugPrivilege	4196	csrsll.exe
Token: SeDebugPrivilege	4196	csrsll.exe
Token: SeDebugPrivilege	4196	csrsll.exe
Token: SeDebugPrivilege	4196	csrsll.exe
Token: SeDebugPrivilege	4196	csrsll.exe
Token: SeDebugPrivilege	4196	csrsll.exe
Token: SeDebugPrivilege	4196	csrsll.exe
Token: SeDebugPrivilege	4196	csrsll.exe
Token: SeDebugPrivilege	4196	csrsll.exe
Token: SeDebugPrivilege	4196	csrsll.exe
Token: SeDebugPrivilege	4196	csrsll.exe
Token: SeDebugPrivilege	4196	csrsll.exe
Token: SeDebugPrivilege	4196	csrsll.exe
Token: SeDebugPrivilege	4196	csrsll.exe
Token: SeDebugPrivilege	4196	csrsll.exe
Token: SeDebugPrivilege	4196	csrsll.exe
Token: SeDebugPrivilege	4196	csrsll.exe
Token: SeDebugPrivilege	4196	csrsll.exe
Token: SeDebugPrivilege	4196	csrsll.exe
Token: SeDebugPrivilege	4196	csrsll.exe
Token: SeDebugPrivilege	4196	csrsll.exe
Token: SeDebugPrivilege	4196	csrsll.exe
Token: SeDebugPrivilege	4196	csrsll.exe
Token: SeDebugPrivilege	4196	csrsll.exe
Token: SeDebugPrivilege	4196	csrsll.exe
Token: SeDebugPrivilege	4196	csrsll.exe
Token: SeDebugPrivilege	4196	csrsll.exe
Token: SeDebugPrivilege	4196	csrsll.exe
Token: SeDebugPrivilege	4196	csrsll.exe
Token: SeDebugPrivilege	4196	csrsll.exe
Token: SeDebugPrivilege	4196	csrsll.exe
Token: SeDebugPrivilege	4196	csrsll.exe
Token: SeDebugPrivilege	4196	csrsll.exe
Token: SeDebugPrivilege	4196	csrsll.exe
Token: SeDebugPrivilege	4196	csrsll.exe
Token: SeDebugPrivilege	4196	csrsll.exe
Token: SeDebugPrivilege	4196	csrsll.exe
Token: SeDebugPrivilege	4196	csrsll.exe
Token: SeDebugPrivilege	4196	csrsll.exe
Token: SeDebugPrivilege	4196	csrsll.exe
Token: SeDebugPrivilege	4196	csrsll.exe
Token: SeDebugPrivilege	4196	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
4272	NEAS.7ffbe84ed0834eb71d3d4bd47bfa7f60.exe
4496	NEAS.7ffbe84ed0834eb71d3d4bd47bfa7f60.exe
3568	csrsll.exe
4196	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 4272 wrote to memory of 4496	4272	NEAS.7ffbe84ed0834eb71d3d4bd47bfa7f60.exe	93
PID 4272 wrote to memory of 4496	4272	NEAS.7ffbe84ed0834eb71d3d4bd47bfa7f60.exe	93
PID 4272 wrote to memory of 4496	4272	NEAS.7ffbe84ed0834eb71d3d4bd47bfa7f60.exe	93
PID 4272 wrote to memory of 4496	4272	NEAS.7ffbe84ed0834eb71d3d4bd47bfa7f60.exe	93
PID 4272 wrote to memory of 4496	4272	NEAS.7ffbe84ed0834eb71d3d4bd47bfa7f60.exe	93
PID 4272 wrote to memory of 4496	4272	NEAS.7ffbe84ed0834eb71d3d4bd47bfa7f60.exe	93
PID 4272 wrote to memory of 4496	4272	NEAS.7ffbe84ed0834eb71d3d4bd47bfa7f60.exe	93
PID 4272 wrote to memory of 4496	4272	NEAS.7ffbe84ed0834eb71d3d4bd47bfa7f60.exe	93
PID 4496 wrote to memory of 1488	4496	NEAS.7ffbe84ed0834eb71d3d4bd47bfa7f60.exe	95
PID 4496 wrote to memory of 1488	4496	NEAS.7ffbe84ed0834eb71d3d4bd47bfa7f60.exe	95
PID 4496 wrote to memory of 1488	4496	NEAS.7ffbe84ed0834eb71d3d4bd47bfa7f60.exe	95
PID 1488 wrote to memory of 2504	1488	cmd.exe	98
PID 1488 wrote to memory of 2504	1488	cmd.exe	98
PID 1488 wrote to memory of 2504	1488	cmd.exe	98
PID 4496 wrote to memory of 3568	4496	NEAS.7ffbe84ed0834eb71d3d4bd47bfa7f60.exe	99
PID 4496 wrote to memory of 3568	4496	NEAS.7ffbe84ed0834eb71d3d4bd47bfa7f60.exe	99
PID 4496 wrote to memory of 3568	4496	NEAS.7ffbe84ed0834eb71d3d4bd47bfa7f60.exe	99
PID 3568 wrote to memory of 4196	3568	csrsll.exe	100
PID 3568 wrote to memory of 4196	3568	csrsll.exe	100
PID 3568 wrote to memory of 4196	3568	csrsll.exe	100
PID 3568 wrote to memory of 4196	3568	csrsll.exe	100
PID 3568 wrote to memory of 4196	3568	csrsll.exe	100
PID 3568 wrote to memory of 4196	3568	csrsll.exe	100
PID 3568 wrote to memory of 4196	3568	csrsll.exe	100
PID 3568 wrote to memory of 4196	3568	csrsll.exe	100
PID 3568 wrote to memory of 3364	3568	csrsll.exe	101
PID 3568 wrote to memory of 3364	3568	csrsll.exe	101
PID 3568 wrote to memory of 3364	3568	csrsll.exe	101
PID 3568 wrote to memory of 3364	3568	csrsll.exe	101
PID 3568 wrote to memory of 3364	3568	csrsll.exe	101
PID 3568 wrote to memory of 3364	3568	csrsll.exe	101
PID 3568 wrote to memory of 3364	3568	csrsll.exe	101
PID 3568 wrote to memory of 3364	3568	csrsll.exe	101

C:\Users\Admin\AppData\Local\Temp\NEAS.7ffbe84ed0834eb71d3d4bd47bfa7f60.exe
"C:\Users\Admin\AppData\Local\Temp\NEAS.7ffbe84ed0834eb71d3d4bd47bfa7f60.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4272
- C:\Users\Admin\AppData\Local\Temp\NEAS.7ffbe84ed0834eb71d3d4bd47bfa7f60.exe
  "C:\Users\Admin\AppData\Local\Temp\NEAS.7ffbe84ed0834eb71d3d4bd47bfa7f60.exe"
  2⤵
  - Checks computer location settings
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4496
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\EETUR.bat" "
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1488
  - - 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:2504
- - 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:3568
  - - 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:4196
  - - C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
      4⤵
      Executes dropped EXE
      PID:3364

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\EETUR.bat

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

Download Submit
C:\Users\Admin\AppData\Local\Temp\EETUR.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
37e64325165721ed3e4f5ed78221d871

SHA1
0626f540888b6db8e19c6268d72ebc4cecd21667

SHA256
3072e28b574a0230a406ecf6481feb3f8173c1d79a0428c585ea1198797493bc

SHA512
04457713a9c1e4be625fa5c53e9c9ae9f711b5103163b158b935c79a5a788fbfd2c1094a67fd1fa086f33663c516fb937b33a6add24494e334bcb02691332566

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

Filesize
90KB

MD5
37e64325165721ed3e4f5ed78221d871

SHA1
0626f540888b6db8e19c6268d72ebc4cecd21667

SHA256
3072e28b574a0230a406ecf6481feb3f8173c1d79a0428c585ea1198797493bc

SHA512
04457713a9c1e4be625fa5c53e9c9ae9f711b5103163b158b935c79a5a788fbfd2c1094a67fd1fa086f33663c516fb937b33a6add24494e334bcb02691332566

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

Filesize
90KB

MD5
37e64325165721ed3e4f5ed78221d871

SHA1
0626f540888b6db8e19c6268d72ebc4cecd21667

SHA256
3072e28b574a0230a406ecf6481feb3f8173c1d79a0428c585ea1198797493bc

SHA512
04457713a9c1e4be625fa5c53e9c9ae9f711b5103163b158b935c79a5a788fbfd2c1094a67fd1fa086f33663c516fb937b33a6add24494e334bcb02691332566

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

Filesize
90KB

MD5
37e64325165721ed3e4f5ed78221d871

SHA1
0626f540888b6db8e19c6268d72ebc4cecd21667

SHA256
3072e28b574a0230a406ecf6481feb3f8173c1d79a0428c585ea1198797493bc

SHA512
04457713a9c1e4be625fa5c53e9c9ae9f711b5103163b158b935c79a5a788fbfd2c1094a67fd1fa086f33663c516fb937b33a6add24494e334bcb02691332566

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

Filesize
90KB

MD5
37e64325165721ed3e4f5ed78221d871

SHA1
0626f540888b6db8e19c6268d72ebc4cecd21667

SHA256
3072e28b574a0230a406ecf6481feb3f8173c1d79a0428c585ea1198797493bc

SHA512
04457713a9c1e4be625fa5c53e9c9ae9f711b5103163b158b935c79a5a788fbfd2c1094a67fd1fa086f33663c516fb937b33a6add24494e334bcb02691332566

Download Submit
memory/3364-65-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3364-61-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3364-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3364-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3364-59-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3568-45-0x0000000002A50000-0x0000000002A52000-memory.dmp

Filesize
8KB

Download
memory/3568-48-0x0000000002BD0000-0x0000000002BD2000-memory.dmp

Filesize
8KB

Download
memory/3568-57-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3568-37-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3568-44-0x0000000002A40000-0x0000000002A42000-memory.dmp

Filesize
8KB

Download
memory/3568-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3568-43-0x0000000002A10000-0x0000000002A12000-memory.dmp

Filesize
8KB

Download
memory/4196-64-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4272-7-0x0000000002330000-0x0000000002332000-memory.dmp

Filesize
8KB

Download
memory/4272-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4272-4-0x0000000002320000-0x0000000002322000-memory.dmp

Filesize
8KB

Download
memory/4272-6-0x0000000002350000-0x0000000002352000-memory.dmp

Filesize
8KB

Download
memory/4272-11-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4272-3-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4272-5-0x0000000002340000-0x0000000002342000-memory.dmp

Filesize
8KB

Download
memory/4496-10-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4496-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4496-62-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/4496-63-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4496-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4496-8-0x0000000000400000-0x000000000040B000-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