modiloader | dbb04a5f4105ec04887ef88eac17c72c13560fef708db85ec359ea9385fde186

Analysis

max time kernel
144s
max time network
149s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
22/08/2024, 10:39

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General

Target

PO310.cmd
Size

6.0MB
MD5

0a991692503b1ce00707984c32918e12
SHA1

df76107deaaee0782c2a4ccd326847e73fafd5e3
SHA256

801e63d98bd8bd5371e18cb9c55d7470909ba1c9ad33aedd89f2cc82f5700f64
SHA512

48aa535b03ebbcdd0bfc9265d5a4675dc472ba0fea0842ffe7a59f54e851f0385216e90578aa4f4f40767c9c9333d41dd5b3a27b875d0826adbf26d60521da5b
SSDEEP

49152:SKT0ymm9RodOObxwbu0a9dJxICIVp1JsPxPZ1m+:2

Score

10^/10

modiloader remcos throttle_8967 discovery persistence rat trojan

Malware Config

Extracted

Family

remcos

Botnet

throttle_8967

154.216.18.217:8967

Attributes

audio_folder
MicRecords
audio_record_time
5
connect_delay
0
connect_interval
1
copy_file
remcos.exe
copy_folder
Remcos
delete_file
false
hide_file
false
hide_keylog_file
false
install_flag
false
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
remcos
mouse_option
false
mutex
Rmc-4SV4HO
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
take_screenshot_option
false
take_screenshot_time
5

Signatures

ModiLoader, DBatLoader
ModiLoader is a Delphi loader that misuses cloud services to download other malicious families.
trojan modiloader
Remcos
Remcos is a closed-source remote control and surveillance software.
rat remcos

ModiLoader Second Stage 1 IoCs

resource	yara_rule
behavioral1/memory/2876-31-0x0000000003240000-0x0000000004240000-memory.dmp	modiloader_stage2

Executes dropped EXE 17 IoCs

pid	Process
2380	alpha.exe
2816	alpha.exe
2772	kn.exe
2868	alpha.exe
2892	kn.exe
2876	dasHost.COM
2984	alpha.exe
2640	alpha.exe
2484	alpha.pif
2616	alpha.pif
1132	alpha.pif
112	xpha.pif
2528	per.exe
1108	per.exe
1144	alpha.pif
1608	alpha.pif
1072	alpha.pif

Loads dropped DLL 5 IoCs

pid	Process
2968	cmd.exe
2968	cmd.exe
2816	alpha.exe
2696	cmd.exe
1132	alpha.pif

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-1-5-21-2212144002-1172735686-1556890956-1000\Software\Microsoft\Windows\CurrentVersion\Run\Rcjwygwr = "C:\\Users\\Public\\Rcjwygwr.url"	dasHost.COM

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 10 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	alpha.pif
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	alpha.pif
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	colorcpl.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dasHost.COM
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	alpha.pif
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	alpha.pif
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	alpha.pif
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	alpha.pif
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	xpha.pif

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
1440	esentutl.exe

Script User-Agent 1 IoCs

Uses user-agent string associated with script host/environment.

description	flow	ioc
HTTP User-Agent header	3	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious behavior: CmdExeWriteProcessMemorySpam 1 IoCs

pid	Process
2876	dasHost.COM

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 2968 wrote to memory of 2240	2968	cmd.exe	30
PID 2968 wrote to memory of 2240	2968	cmd.exe	30
PID 2968 wrote to memory of 2240	2968	cmd.exe	30
PID 2968 wrote to memory of 2380	2968	cmd.exe	31
PID 2968 wrote to memory of 2380	2968	cmd.exe	31
PID 2968 wrote to memory of 2380	2968	cmd.exe	31
PID 2380 wrote to memory of 2576	2380	alpha.exe	32
PID 2380 wrote to memory of 2576	2380	alpha.exe	32
PID 2380 wrote to memory of 2576	2380	alpha.exe	32
PID 2968 wrote to memory of 2816	2968	cmd.exe	33
PID 2968 wrote to memory of 2816	2968	cmd.exe	33
PID 2968 wrote to memory of 2816	2968	cmd.exe	33
PID 2816 wrote to memory of 2772	2816	alpha.exe	34
PID 2816 wrote to memory of 2772	2816	alpha.exe	34
PID 2816 wrote to memory of 2772	2816	alpha.exe	34
PID 2968 wrote to memory of 2868	2968	cmd.exe	35
PID 2968 wrote to memory of 2868	2968	cmd.exe	35
PID 2968 wrote to memory of 2868	2968	cmd.exe	35
PID 2868 wrote to memory of 2892	2868	alpha.exe	36
PID 2868 wrote to memory of 2892	2868	alpha.exe	36
PID 2868 wrote to memory of 2892	2868	alpha.exe	36
PID 2968 wrote to memory of 2876	2968	cmd.exe	37
PID 2968 wrote to memory of 2876	2968	cmd.exe	37
PID 2968 wrote to memory of 2876	2968	cmd.exe	37
PID 2968 wrote to memory of 2876	2968	cmd.exe	37
PID 2968 wrote to memory of 2984	2968	cmd.exe	38
PID 2968 wrote to memory of 2984	2968	cmd.exe	38
PID 2968 wrote to memory of 2984	2968	cmd.exe	38
PID 2876 wrote to memory of 0	2876	dasHost.COM
PID 2876 wrote to memory of 0	2876	dasHost.COM
PID 2876 wrote to memory of 0	2876	dasHost.COM
PID 2876 wrote to memory of 0	2876	dasHost.COM
PID 2876 wrote to memory of 0	2876	dasHost.COM
PID 2876 wrote to memory of 0	2876	dasHost.COM
PID 2876 wrote to memory of 0	2876	dasHost.COM
PID 2876 wrote to memory of 0	2876	dasHost.COM
PID 2876 wrote to memory of 0	2876	dasHost.COM
PID 2876 wrote to memory of 0	2876	dasHost.COM
PID 2876 wrote to memory of 0	2876	dasHost.COM
PID 2876 wrote to memory of 0	2876	dasHost.COM
PID 2876 wrote to memory of 0	2876	dasHost.COM
PID 2876 wrote to memory of 0	2876	dasHost.COM
PID 2876 wrote to memory of 0	2876	dasHost.COM
PID 2876 wrote to memory of 0	2876	dasHost.COM
PID 2876 wrote to memory of 0	2876	dasHost.COM
PID 2876 wrote to memory of 0	2876	dasHost.COM
PID 2876 wrote to memory of 0	2876	dasHost.COM
PID 2876 wrote to memory of 0	2876	dasHost.COM
PID 2876 wrote to memory of 0	2876	dasHost.COM
PID 2876 wrote to memory of 0	2876	dasHost.COM
PID 2876 wrote to memory of 0	2876	dasHost.COM
PID 2876 wrote to memory of 0	2876	dasHost.COM
PID 2876 wrote to memory of 0	2876	dasHost.COM
PID 2876 wrote to memory of 0	2876	dasHost.COM
PID 2876 wrote to memory of 0	2876	dasHost.COM
PID 2876 wrote to memory of 0	2876	dasHost.COM
PID 2876 wrote to memory of 0	2876	dasHost.COM
PID 2876 wrote to memory of 0	2876	dasHost.COM
PID 2876 wrote to memory of 0	2876	dasHost.COM
PID 2876 wrote to memory of 0	2876	dasHost.COM
PID 2876 wrote to memory of 0	2876	dasHost.COM
PID 2876 wrote to memory of 0	2876	dasHost.COM
PID 2876 wrote to memory of 0	2876	dasHost.COM
PID 2876 wrote to memory of 0	2876	dasHost.COM

C:\Windows\system32\cmd.exe
cmd /c "C:\Users\Admin\AppData\Local\Temp\PO310.cmd"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2968
- C:\Windows\System32\extrac32.exe
  C:\\Windows\\System32\\extrac32 /C /Y C:\\Windows\\System32\\cmd.exe "C:\\Users\\Public\\alpha.exe"
  2⤵
  PID:2240
- C:\Users\Public\alpha.exe
  C:\\Users\\Public\\alpha /c extrac32 /C /Y C:\\Windows\\System32\\certutil.exe C:\\Users\\Public\\kn.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of WriteProcessMemory
  PID:2380
- - C:\Windows\system32\extrac32.exe
    extrac32 /C /Y C:\\Windows\\System32\\certutil.exe C:\\Users\\Public\\kn.exe
    3⤵
    PID:2576
- C:\Users\Public\alpha.exe
  C:\\Users\\Public\\alpha /c C:\\Users\\Public\\kn -decodehex -F "C:\Users\Admin\AppData\Local\Temp\PO310.cmd" "C:\\Users\\Public\\dasHost.GIF" 3
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:2816
- - C:\Users\Public\kn.exe
    C:\\Users\\Public\\kn -decodehex -F "C:\Users\Admin\AppData\Local\Temp\PO310.cmd" "C:\\Users\\Public\\dasHost.GIF" 3
    3⤵
    - Executes dropped EXE
    PID:2772
- C:\Users\Public\alpha.exe
  C:\\Users\\Public\\alpha /c C:\\Users\\Public\\kn -decodehex -F "C:\\Users\\Public\\dasHost.GIF" "C:\\Users\\Public\\Libraries\\dasHost.COM" 10
  2⤵
  - Executes dropped EXE
  - Suspicious use of WriteProcessMemory
  PID:2868
- - C:\Users\Public\kn.exe
    C:\\Users\\Public\\kn -decodehex -F "C:\\Users\\Public\\dasHost.GIF" "C:\\Users\\Public\\Libraries\\dasHost.COM" 10
    3⤵
    - Executes dropped EXE
    PID:2892
- C:\Users\Public\Libraries\dasHost.COM
  C:\Users\Public\Libraries\dasHost.COM
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: CmdExeWriteProcessMemorySpam
  - Suspicious use of WriteProcessMemory
  PID:2876
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Public\Libraries\rwgywjcR.cmd" "
    3⤵
    - Loads dropped DLL
    - System Location Discovery: System Language Discovery
    PID:2696
  - - C:\Windows\SysWOW64\esentutl.exe
      C:\\Windows\\System32\\esentutl /y C:\\Windows\\System32\\cmd.exe /d C:\\Users\\Public\\alpha.pif /o
      4⤵
      PID:700
  - - C:\Windows\SysWOW64\esentutl.exe
      C:\\Windows\\System32\\esentutl /y C:\\Windows\\System32\\ping.exe /d C:\\Users\\Public\\xpha.pif /o
      4⤵
      System Network Configuration Discovery: Internet Connection Discovery
      PID:1440
  - - C:\Users\Public\alpha.pif
      C:\\Users\\Public\\alpha.pif /c mkdir "\\?\C:\Windows "
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      PID:2484
  - - C:\Users\Public\alpha.pif
      C:\\Users\\Public\\alpha.pif /c mkdir "\\?\C:\Windows \SysWOW64"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      PID:2616
  - - C:\Users\Public\alpha.pif
      C:\\Users\\Public\\alpha.pif /c C:\\Users\\Public\\xpha.pif 127.0.0.1 -n 10
      4⤵
      Executes dropped EXE
      Loads dropped DLL
      System Location Discovery: System Language Discovery
      PID:1132
    - - C:\Users\Public\xpha.pif
        
        C:\\Users\\Public\\xpha.pif 127.0.0.1 -n 10
        5⤵
        Executes dropped EXE
        System Location Discovery: System Language Discovery
        
        PID:112
  - - C:\Windows \SysWOW64\per.exe
      "C:\\Windows \\SysWOW64\\per.exe
      4⤵
      Executes dropped EXE
      PID:2528
  - - C:\Windows \SysWOW64\per.exe
      "C:\Windows \SysWOW64\per.exe"
      4⤵
      Executes dropped EXE
      PID:1108
  - - C:\Users\Public\alpha.pif
      C:\\Users\\Public\\alpha.pif /c del "C:\Users\Public\xpha.pif"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      PID:1144
  - - C:\Users\Public\alpha.pif
      C:\\Users\\Public\\alpha.pif /c rmdir "C:\Windows \SysWOW64
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      PID:1608
  - - C:\Users\Public\alpha.pif
      C:\\Users\\Public\\alpha.pif /c rmdir "C:\Windows \"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      PID:1072
- - C:\Windows\SysWOW64\esentutl.exe
    C:\\Windows\\System32\\esentutl.exe /y C:\Users\Public\Libraries\dasHost.COM /d C:\\Users\\Public\\Libraries\\Rcjwygwr.PIF /o
    3⤵
    PID:2088
- - C:\Windows\SysWOW64\colorcpl.exe
    C:\Windows\System32\colorcpl.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2160
- C:\Users\Public\alpha.exe
  C:\\Users\\Public\\alpha /c del /q "C:\Users\Public\kn.exe" / A / F / Q / S
  2⤵
  - Executes dropped EXE
  PID:2984
- C:\Users\Public\alpha.exe
  C:\\Users\\Public\\alpha /c del /q "C:\Users\Public\dasHost.GIF" / A / F / Q / S
  2⤵
  - Executes dropped EXE
  PID:2640

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

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

System Network Configuration Discovery

T1016

Internet Connection Discovery

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Public\Libraries\dasHost.COM

Filesize
1.2MB

MD5
81930eaf224f2c1cd1901aa5f13800c4

SHA1
0ebb13479cb378d89260bb1edfd2171baca196c1

SHA256
4986231ef099aa547381a45c9e7ce5a907e434708581c919a7dd9504c8b02202

SHA512
a20b99e981cef3062d67a413a40d71ad1386d426d954bf2290fca562aaa187542f33de3f06b92a27961b6d4298b93719266155f3f7e666222490eb9dbe846f6a

Download Submit
C:\Users\Public\Libraries\rwgywjcR.cmd

Filesize
60KB

MD5
b87f096cbc25570329e2bb59fee57580

SHA1
d281d1bf37b4fb46f90973afc65eece3908532b2

SHA256
d08ccc9b1e3acc205fe754bad8416964e9711815e9ceed5e6af73d8e9035ec9e

SHA512
72901adde38f50cf6d74743c0a546c0fea8b1cd4a18449048a0758a7593a176fc33aad1ebfd955775eefc2b30532bcc18e4f2964b3731b668dd87d94405951f7

Download Submit
C:\Users\Public\dasHost.GIF

Filesize
4.3MB

MD5
4d4ea35d1c4338a3c219b6a08cc8aeda

SHA1
acd96bd4f03d1acac9fc7b749b7ec61397e3b56d

SHA256
b8b24026bf42bdbc29c6cd1fc6210f60e6224833898c77d15dc9cc6a6b4eca17

SHA512
2c4132dbc4c63cf587646315ab2dbe22f62a76cb3c7a3a4c4e6643cab51f51f2789ba55c8458a2012f3a6031ee488bf0cfb55ebe52a6f24f2b4e1439d62f1e3a

Download Submit
C:\Users\Public\xpha.pif

Filesize
15KB

MD5
6242e3d67787ccbf4e06ad2982853144

SHA1
6ac7947207d999a65890ab25fe344955da35028e

SHA256
4ca10dba7ff487fdb3f1362a3681d7d929f5aa1262cdfd31b04c30826983fb1d

SHA512
7d0d457e1537d624119a8023bcc086575696a5739c0460ef11554afac13af5e5d1edc7629a10e62834aba9f1b3ab1442011b15b4c3930399d91dca34b3b1cbaf

Download Submit
C:\Windows \SysWOW64\per.exe

Filesize
94KB

MD5
869640d0a3f838694ab4dfea9e2f544d

SHA1
bdc42b280446ba53624ff23f314aadb861566832

SHA256
0db4d3ffdb96d13cf3b427af8be66d985728c55ae254e4b67d287797e4c0b323

SHA512
6e775cfb350415434b18427d5ff79b930ed3b0b3fc3466bc195a796c95661d4696f2d662dd0e020c3a6c3419c2734468b1d7546712ecec868d2bbfd2bc2468a7

Download Submit
\Users\Public\alpha.exe

Filesize
337KB

MD5
5746bd7e255dd6a8afa06f7c42c1ba41

SHA1
0f3c4ff28f354aede202d54e9d1c5529a3bf87d8

SHA256
db06c3534964e3fc79d2763144ba53742d7fa250ca336f4a0fe724b75aaff386

SHA512
3a968356d7b94cc014f78ca37a3c03f354c3970c9e027ed4ccb8e59f0f9f2a32bfa22e7d6b127d44631d715ea41bf8ace91f0b4d69d1714d55552b064ffeb69e

Download Submit
\Users\Public\alpha.pif

Filesize
295KB

MD5
ad7b9c14083b52bc532fba5948342b98

SHA1
ee8cbf12d87c4d388f09b4f69bed2e91682920b5

SHA256
17f746d82695fa9b35493b41859d39d786d32b23a9d2e00f4011dec7a02402ae

SHA512
e12aad20c824187b39edb3c7943709290b5ddbf1b4032988db46f2e86da3cf7e7783f78c82e4dc5da232f666b8f9799a260a1f8e2694eb4d0cdaf78da710fde1

Download Submit
\Users\Public\kn.exe

Filesize
1.1MB

MD5
ec1fd3050dbc40ec7e87ab99c7ca0b03

SHA1
ae7fdfc29f4ef31e38ebf381e61b503038b5cb35

SHA256
1e19c5a26215b62de1babd5633853344420c1e673bb83e8a89213085e17e16e3

SHA512
4e47331f2fdce77b01d86cf8e21cd7d6df13536f09b70c53e5a6b82f66512faa10e38645884c696b47a27ea6bddc6c1fdb905ee78684dca98cbda5f39fbafcc2

Download Submit
memory/2160-106-0x00000000002C0000-0x00000000012C0000-memory.dmp

Filesize
16.0MB

Download
memory/2160-105-0x00000000002C0000-0x00000000012C0000-memory.dmp

Filesize
16.0MB

Download
memory/2160-112-0x00000000002C0000-0x00000000012C0000-memory.dmp

Filesize
16.0MB

Download
memory/2160-97-0x00000000002C0000-0x00000000012C0000-memory.dmp

Filesize
16.0MB

Download
memory/2160-99-0x00000000002C0000-0x00000000012C0000-memory.dmp

Filesize
16.0MB

Download
memory/2160-100-0x00000000002C0000-0x00000000012C0000-memory.dmp

Filesize
16.0MB

Download
memory/2160-101-0x00000000002C0000-0x00000000012C0000-memory.dmp

Filesize
16.0MB

Download
memory/2160-102-0x00000000002C0000-0x00000000012C0000-memory.dmp

Filesize
16.0MB

Download
memory/2160-104-0x00000000002C0000-0x00000000012C0000-memory.dmp

Filesize
16.0MB

Download
memory/2160-111-0x00000000002C0000-0x00000000012C0000-memory.dmp

Filesize
16.0MB

Download
memory/2160-110-0x00000000002C0000-0x00000000012C0000-memory.dmp

Filesize
16.0MB

Download
memory/2160-107-0x00000000002C0000-0x00000000012C0000-memory.dmp

Filesize
16.0MB

Download
memory/2160-108-0x00000000002C0000-0x00000000012C0000-memory.dmp

Filesize
16.0MB

Download
memory/2160-109-0x00000000002C0000-0x00000000012C0000-memory.dmp

Filesize
16.0MB

Download
memory/2876-30-0x0000000003240000-0x0000000004240000-memory.dmp

Filesize
16.0MB

Download
memory/2876-34-0x0000000000400000-0x0000000000540000-memory.dmp

Filesize
1.2MB

Download
memory/2876-31-0x0000000003240000-0x0000000004240000-memory.dmp

Filesize
16.0MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads