hijackloader | f286d2b89eaebb2e1e6e23a44bc92dae7c058348286810549f4c7514c9ea61ad

Analysis

max time kernel
148s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20250217-en
resource tags

arch:x64arch:x86image:win10v2004-20250217-enlocale:en-usos:windows10-2004-x64system
submitted
18-02-2025 14:05

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General

Target

d.msi
Size

2.9MB
MD5

ae5b94abf028388af1454ed76806cc6f
SHA1

ef013c7eec6fc6c14ccd414b5eb87abf1476566a
SHA256

f286d2b89eaebb2e1e6e23a44bc92dae7c058348286810549f4c7514c9ea61ad
SHA512

b88c3c160b68b0bdc03780a6848001aef7baa5532b815071eb4f26ff1caa87f71b2401b0c507db5389d14517310bae758aaa17f6fe7aa508f2de38cdbcac1fe2
SSDEEP

49152:TL51ahTWxFOlm43he+4Xkt1i1XkIZ9fm5urK7olHgnIxQQ6brit:p8h8ME4xr461ckZPoxgnsSa

Score

10^/10

hijackloader remcos v2 discovery loader persistence privilege_escalation 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/0x0008000000023d61-31.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

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-1-5-21-2593460650-190333679-3676257533-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\EHttpSrv = "\"C:\\Users\\Admin\\AppData\\Roaming\\IXXinstall\\EHttpSrv.exe\""	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)	\??\I:	msiexec.exe
File opened (read-only)	\??\L:	msiexec.exe
File opened (read-only)	\??\P:	msiexec.exe
File opened (read-only)	\??\T:	msiexec.exe
File opened (read-only)	\??\T:	msiexec.exe
File opened (read-only)	\??\H:	msiexec.exe
File opened (read-only)	\??\R:	msiexec.exe
File opened (read-only)	\??\X:	msiexec.exe
File opened (read-only)	\??\A:	msiexec.exe
File opened (read-only)	\??\E:	msiexec.exe
File opened (read-only)	\??\K:	msiexec.exe
File opened (read-only)	\??\N:	msiexec.exe
File opened (read-only)	\??\B:	msiexec.exe
File opened (read-only)	\??\W:	msiexec.exe
File opened (read-only)	\??\Y:	msiexec.exe
File opened (read-only)	\??\S:	msiexec.exe
File opened (read-only)	\??\B:	msiexec.exe
File opened (read-only)	\??\J:	msiexec.exe
File opened (read-only)	\??\X:	msiexec.exe
File opened (read-only)	\??\Y:	msiexec.exe
File opened (read-only)	\??\U:	msiexec.exe
File opened (read-only)	\??\V:	msiexec.exe
File opened (read-only)	\??\M:	msiexec.exe
File opened (read-only)	\??\A:	msiexec.exe
File opened (read-only)	\??\L:	msiexec.exe
File opened (read-only)	\??\P:	msiexec.exe
File opened (read-only)	\??\S:	msiexec.exe
File opened (read-only)	\??\Q:	msiexec.exe
File opened (read-only)	\??\V:	msiexec.exe
File opened (read-only)	\??\I:	msiexec.exe
File opened (read-only)	\??\N:	msiexec.exe
File opened (read-only)	\??\O:	msiexec.exe
File opened (read-only)	\??\Q:	msiexec.exe
File opened (read-only)	\??\W:	msiexec.exe
File opened (read-only)	\??\Z:	msiexec.exe
File opened (read-only)	\??\K:	msiexec.exe
File opened (read-only)	\??\J:	msiexec.exe
File opened (read-only)	\??\Z:	msiexec.exe
File opened (read-only)	\??\G:	msiexec.exe
File opened (read-only)	\??\H:	msiexec.exe
File opened (read-only)	\??\O:	msiexec.exe
File opened (read-only)	\??\R:	msiexec.exe
File opened (read-only)	\??\G:	msiexec.exe
File opened (read-only)	\??\M:	msiexec.exe
File opened (read-only)	\??\U:	msiexec.exe
File opened (read-only)	\??\E:	msiexec.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4652 set thread context of 1908	4652	EHttpSrv.exe	89
PID 1908 set thread context of 3500	1908	cmd.exe	92

Drops file in Windows directory 8 IoCs

description	ioc	Process
File created	C:\Windows\Installer\SourceHash{B1C5FCCC-2DDA-41F7-8B6A-192BB64891A0}	msiexec.exe
File opened for modification	C:\Windows\Installer\MSICD52.tmp	msiexec.exe
File created	C:\Windows\Installer\e57cc2b.msi	msiexec.exe
File created	C:\Windows\Installer\e57cc29.msi	msiexec.exe
File opened for modification	C:\Windows\Installer\e57cc29.msi	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\	msiexec.exe
File created	C:\Windows\Installer\inprogressinstallinfo.ipi	msiexec.exe

Executes dropped EXE 1 IoCs

pid	Process
4652	EHttpSrv.exe

Loads dropped DLL 3 IoCs

pid	Process
4652	EHttpSrv.exe
4652	EHttpSrv.exe
3500	EHttpSrv.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs

persistence privilege_escalation

Installer Packages

T1546.016

Msiexec

T1218.007

pid	Process
4844	msiexec.exe

System Location Discovery: System Language Discovery 1 TTPs 3 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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	EHttpSrv.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
968	msiexec.exe
968	msiexec.exe
4652	EHttpSrv.exe
1908	cmd.exe
1908	cmd.exe

Suspicious behavior: MapViewOfSection 3 IoCs

pid	Process
4652	EHttpSrv.exe
1908	cmd.exe
1908	cmd.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeShutdownPrivilege	4844	msiexec.exe
Token: SeIncreaseQuotaPrivilege	4844	msiexec.exe
Token: SeSecurityPrivilege	968	msiexec.exe
Token: SeCreateTokenPrivilege	4844	msiexec.exe
Token: SeAssignPrimaryTokenPrivilege	4844	msiexec.exe
Token: SeLockMemoryPrivilege	4844	msiexec.exe
Token: SeIncreaseQuotaPrivilege	4844	msiexec.exe
Token: SeMachineAccountPrivilege	4844	msiexec.exe
Token: SeTcbPrivilege	4844	msiexec.exe
Token: SeSecurityPrivilege	4844	msiexec.exe
Token: SeTakeOwnershipPrivilege	4844	msiexec.exe
Token: SeLoadDriverPrivilege	4844	msiexec.exe
Token: SeSystemProfilePrivilege	4844	msiexec.exe
Token: SeSystemtimePrivilege	4844	msiexec.exe
Token: SeProfSingleProcessPrivilege	4844	msiexec.exe
Token: SeIncBasePriorityPrivilege	4844	msiexec.exe
Token: SeCreatePagefilePrivilege	4844	msiexec.exe
Token: SeCreatePermanentPrivilege	4844	msiexec.exe
Token: SeBackupPrivilege	4844	msiexec.exe
Token: SeRestorePrivilege	4844	msiexec.exe
Token: SeShutdownPrivilege	4844	msiexec.exe
Token: SeDebugPrivilege	4844	msiexec.exe
Token: SeAuditPrivilege	4844	msiexec.exe
Token: SeSystemEnvironmentPrivilege	4844	msiexec.exe
Token: SeChangeNotifyPrivilege	4844	msiexec.exe
Token: SeRemoteShutdownPrivilege	4844	msiexec.exe
Token: SeUndockPrivilege	4844	msiexec.exe
Token: SeSyncAgentPrivilege	4844	msiexec.exe
Token: SeEnableDelegationPrivilege	4844	msiexec.exe
Token: SeManageVolumePrivilege	4844	msiexec.exe
Token: SeImpersonatePrivilege	4844	msiexec.exe
Token: SeCreateGlobalPrivilege	4844	msiexec.exe
Token: SeBackupPrivilege	3808	vssvc.exe
Token: SeRestorePrivilege	3808	vssvc.exe
Token: SeAuditPrivilege	3808	vssvc.exe
Token: SeRestorePrivilege	968	msiexec.exe
Token: SeTakeOwnershipPrivilege	968	msiexec.exe
Token: SeRestorePrivilege	968	msiexec.exe
Token: SeTakeOwnershipPrivilege	968	msiexec.exe
Token: SeRestorePrivilege	968	msiexec.exe
Token: SeTakeOwnershipPrivilege	968	msiexec.exe
Token: SeRestorePrivilege	968	msiexec.exe
Token: SeTakeOwnershipPrivilege	968	msiexec.exe
Token: SeRestorePrivilege	968	msiexec.exe
Token: SeTakeOwnershipPrivilege	968	msiexec.exe
Token: SeRestorePrivilege	968	msiexec.exe
Token: SeTakeOwnershipPrivilege	968	msiexec.exe
Token: SeRestorePrivilege	968	msiexec.exe
Token: SeTakeOwnershipPrivilege	968	msiexec.exe
Token: SeRestorePrivilege	968	msiexec.exe
Token: SeTakeOwnershipPrivilege	968	msiexec.exe
Token: SeRestorePrivilege	968	msiexec.exe
Token: SeTakeOwnershipPrivilege	968	msiexec.exe
Token: SeRestorePrivilege	968	msiexec.exe
Token: SeTakeOwnershipPrivilege	968	msiexec.exe
Token: SeRestorePrivilege	968	msiexec.exe
Token: SeTakeOwnershipPrivilege	968	msiexec.exe
Token: SeRestorePrivilege	968	msiexec.exe
Token: SeTakeOwnershipPrivilege	968	msiexec.exe
Token: SeRestorePrivilege	968	msiexec.exe
Token: SeTakeOwnershipPrivilege	968	msiexec.exe
Token: SeRestorePrivilege	968	msiexec.exe
Token: SeTakeOwnershipPrivilege	968	msiexec.exe
Token: SeRestorePrivilege	968	msiexec.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
4844	msiexec.exe
4844	msiexec.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 968 wrote to memory of 4652	968	msiexec.exe	88
PID 968 wrote to memory of 4652	968	msiexec.exe	88
PID 968 wrote to memory of 4652	968	msiexec.exe	88
PID 4652 wrote to memory of 1908	4652	EHttpSrv.exe	89
PID 4652 wrote to memory of 1908	4652	EHttpSrv.exe	89
PID 4652 wrote to memory of 1908	4652	EHttpSrv.exe	89
PID 4652 wrote to memory of 1908	4652	EHttpSrv.exe	89
PID 1908 wrote to memory of 3500	1908	cmd.exe	92
PID 1908 wrote to memory of 3500	1908	cmd.exe	92
PID 1908 wrote to memory of 3500	1908	cmd.exe	92
PID 1908 wrote to memory of 3500	1908	cmd.exe	92
PID 1908 wrote to memory of 3500	1908	cmd.exe	92

Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
ransomware

C:\Windows\system32\msiexec.exe
msiexec.exe /I C:\Users\Admin\AppData\Local\Temp\d.msi
1⤵
- Enumerates connected drives
- Event Triggered Execution: Installer Packages
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
PID:4844

C:\Windows\system32\msiexec.exe
C:\Windows\system32\msiexec.exe /V
1⤵
- Adds Run key to start application
- Enumerates connected drives
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:968
- C:\Users\Admin\AppData\Roaming\IXXinstall\EHttpSrv.exe
  "C:\Users\Admin\AppData\Roaming\IXXinstall\EHttpSrv.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:4652
- - 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:1908
  - - C:\Users\Admin\AppData\Roaming\IXXinstall\EHttpSrv.exe
      C:\Users\Admin\AppData\Roaming\IXXinstall\EHttpSrv.exe
      4⤵
      Loads dropped DLL
      System Location Discovery: System Language Discovery
      PID:3500

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3808

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

Event Triggered Execution

T1546

Installer Packages

T1546.016

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Event Triggered Execution

T1546

Installer Packages

T1546.016

Defense Evasion

Modify Registry

T1112

System Binary Proxy Execution

T1218

Msiexec

T1218.007

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

Exfiltration

Impact

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Downloads

C:\Config.Msi\e57cc2a.rbs

Filesize
10KB

MD5
9444659f2846928677c3758044016f31

SHA1
31ee36803e3017877ab501ef85ae645117112780

SHA256
85b4981bc662d974ae6f78215d6ef97f4fee6f7bd7403ec9c5ae2808087e984d

SHA512
3426efd62526278d21a1a05d5fd066ebb08eda1cf66ba5e88616ae1731eebb7af315e433d8e28da24d522f9181fef98a70a8c107b49411a4949fbb0877dc4ac0

Download Submit
C:\Users\Admin\AppData\Local\Temp\6de62724

Filesize
1.0MB

MD5
efecd5035935ecba500dda8e1b858e83

SHA1
83617ac59b080932c90a0115721cf9f9498ebe86

SHA256
ca8a355c3238640b553e446b0bb0571d8e53b999c3787741adda87a814721d3b

SHA512
c5a29ca3e93ab4a69be73f33d08a0f3d13f4f3e026cf671f661bba323fb12b7cce5bba59b9f10174250a9e4aa97f00da13bb46c6dd246c57901154e93a96f30a

Download Submit
C:\Users\Admin\AppData\Roaming\IXXinstall\EHttpSrv.exe

Filesize
20KB

MD5
9329ba45c8b97485926a171e34c2abb8

SHA1
20118bc0432b4e8b3660a4b038b20ca28f721e5c

SHA256
effa6fcb8759375b4089ccf61202a5c63243f4102872e64e3eb0a1bdc2727659

SHA512
0af06b5495142ba0632a46be0778a7bd3d507e9848b3159436aa504536919abbcacd8b740ef4b591296e86604b49e0642fee2c273a45e44b41a80f91a1d52acc

Download Submit
C:\Users\Admin\AppData\Roaming\IXXinstall\audiogram.tif

Filesize
877KB

MD5
5124236fd955464317fbb1f344a1d2f2

SHA1
fe3a91e252f1dc3c3b4980ade7157369ea6f5097

SHA256
ed1389002cdf96c9b54de35b6e972166ee3296d628943fd594a383e674c5cba6

SHA512
2b2ac23244b16f936ef9a4049586f58c809fcc4391a56390cc5db2e8d96140001e0b977680ed1d8b0ab9c410e865a880209e22add8d42e563dc40bc91236b252

Download Submit
C:\Users\Admin\AppData\Roaming\IXXinstall\http_dll.dll

Filesize
1.9MB

MD5
fe47e255c704b20cb20c8ed93ec94d47

SHA1
ed7d26624b3cfaa72cf7d3bc59d26845fb84247a

SHA256
b0d665cb466e10ef90e1d79a39cb655ebe785d0cefc074f7a22d04936b681879

SHA512
55813a4b755773f98991b47294fed03b23d5bee9af3ef98727b7345882fe0d9976546f46847fbc30119e7c62ce7ee8ae21f54065922041cf8d42364e607bc1c0

Download Submit
C:\Users\Admin\AppData\Roaming\IXXinstall\mfc80u.dll

Filesize
1.0MB

MD5
686b224b4987c22b153fbb545fee9657

SHA1
684ee9f018fbb0bbf6ffa590f3782ba49d5d096c

SHA256
a2ac851f35066c2f13a7452b7a9a3fee05bfb42907ae77a6b85b212a2227fc36

SHA512
44d65db91ceea351d2b6217eaa27358dbc2ed27c9a83d226b59aecb336a9252b60aec5ce5e646706a2af5631d5ee0f721231ec751e97e47bbbc32d5f40908875

Download Submit
C:\Windows\Installer\e57cc29.msi

Filesize
2.9MB

MD5
ae5b94abf028388af1454ed76806cc6f

SHA1
ef013c7eec6fc6c14ccd414b5eb87abf1476566a

SHA256
f286d2b89eaebb2e1e6e23a44bc92dae7c058348286810549f4c7514c9ea61ad

SHA512
b88c3c160b68b0bdc03780a6848001aef7baa5532b815071eb4f26ff1caa87f71b2401b0c507db5389d14517310bae758aaa17f6fe7aa508f2de38cdbcac1fe2

Download Submit
memory/1908-38-0x0000000075260000-0x00000000753DB000-memory.dmp

Filesize
1.5MB

Download
memory/1908-36-0x00007FFA94350000-0x00007FFA94545000-memory.dmp

Filesize
2.0MB

Download
memory/3500-46-0x0000000000410000-0x0000000000494000-memory.dmp

Filesize
528KB

Download
memory/3500-40-0x0000000073760000-0x00000000749B4000-memory.dmp

Filesize
18.3MB

Download
memory/3500-42-0x00007FFA94350000-0x00007FFA94545000-memory.dmp

Filesize
2.0MB

Download
memory/3500-43-0x0000000000410000-0x0000000000494000-memory.dmp

Filesize
528KB

Download
memory/3500-47-0x0000000000410000-0x0000000000494000-memory.dmp

Filesize
528KB

Download
memory/3500-50-0x0000000000410000-0x0000000000494000-memory.dmp

Filesize
528KB

Download
memory/3500-51-0x0000000000410000-0x0000000000494000-memory.dmp

Filesize
528KB

Download
memory/3500-53-0x0000000000410000-0x0000000000494000-memory.dmp

Filesize
528KB

Download
memory/3500-54-0x0000000000410000-0x0000000000494000-memory.dmp

Filesize
528KB

Download
memory/3500-55-0x0000000000410000-0x0000000000494000-memory.dmp

Filesize
528KB

Download
memory/4652-32-0x0000000075260000-0x00000000753DB000-memory.dmp

Filesize
1.5MB

Download
memory/4652-33-0x0000000075260000-0x00000000753DB000-memory.dmp

Filesize
1.5MB

Download