metamorpherrat | dcf3c61426860a4cc128ab3a5408db291b9a57ad97b6c961efe53fdade34a47e

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
06/08/2024, 03:21

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General

Target
dcf3c61426860a4cc128ab3a5408db291b9a57ad97b6c961efe53fdade34a47e.exe
Size 78KB
Sample240806-dwskjayakk
SHA256 dcf3c61426860a4cc128ab3a5408db291b9a57ad97b6c961efe53fdade34a47e
MD5 97d5712e916fd4dc5800a399cda78145
SHA1 500c7831791112d76a27d949a138fb3044ec1325
SHA512 8636f81b0c95a26df8dbcf16f0d788d12585f0154c3d64545086e7095a6eb3fa3c5e9b9e610d45ed3cb35eac4d7fd868210bbe4217dacbedde9a09fe393901df
SSDEEP 1536:zPWtHF3M7t4XT0XRhyRjVf3hTzdEzcEGvCZ1Hc5RPuoYciQty9/yj1gi:zPWtHF8hASyRxvhTzXPvCbW2Uy9/E
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

metamorpherrat discovery persistence rat stealer trojan

Malware Config

Signatures

MetamorpherRAT
Metamorpherrat is a hacking tool that has been around for a while since 2013.
trojan rat stealer metamorpherrat

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-1-5-21-2412658365-3084825385-3340777666-1000\Control Panel\International\Geo\Nation	dcf3c61426860a4cc128ab3a5408db291b9a57ad97b6c961efe53fdade34a47e.exe

Executes dropped EXE 1 IoCs

pid	Process
3056	tmp9F4D.tmp.exe

Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

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-1-5-21-2412658365-3084825385-3340777666-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\aspnet_state_perf = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\System.Web.exe\""	tmp9F4D.tmp.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	vbc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cvtres.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	tmp9F4D.tmp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dcf3c61426860a4cc128ab3a5408db291b9a57ad97b6c961efe53fdade34a47e.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4972	dcf3c61426860a4cc128ab3a5408db291b9a57ad97b6c961efe53fdade34a47e.exe
Token: SeDebugPrivilege	3056	tmp9F4D.tmp.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4972 wrote to memory of 3788	4972	dcf3c61426860a4cc128ab3a5408db291b9a57ad97b6c961efe53fdade34a47e.exe	84
PID 4972 wrote to memory of 3788	4972	dcf3c61426860a4cc128ab3a5408db291b9a57ad97b6c961efe53fdade34a47e.exe	84
PID 4972 wrote to memory of 3788	4972	dcf3c61426860a4cc128ab3a5408db291b9a57ad97b6c961efe53fdade34a47e.exe	84
PID 3788 wrote to memory of 4324	3788	vbc.exe	87
PID 3788 wrote to memory of 4324	3788	vbc.exe	87
PID 3788 wrote to memory of 4324	3788	vbc.exe	87
PID 4972 wrote to memory of 3056	4972	dcf3c61426860a4cc128ab3a5408db291b9a57ad97b6c961efe53fdade34a47e.exe	89
PID 4972 wrote to memory of 3056	4972	dcf3c61426860a4cc128ab3a5408db291b9a57ad97b6c961efe53fdade34a47e.exe	89
PID 4972 wrote to memory of 3056	4972	dcf3c61426860a4cc128ab3a5408db291b9a57ad97b6c961efe53fdade34a47e.exe	89

C:\Users\Admin\AppData\Local\Temp\dcf3c61426860a4cc128ab3a5408db291b9a57ad97b6c961efe53fdade34a47e.exe
"C:\Users\Admin\AppData\Local\Temp\dcf3c61426860a4cc128ab3a5408db291b9a57ad97b6c961efe53fdade34a47e.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4972
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
  "C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe" /noconfig @"C:\Users\Admin\AppData\Local\Temp\efcz_yly.cmdline"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3788
- - C:\Windows\Microsoft.NET\Framework\v2.0.50727\cvtres.exe
    C:\Windows\Microsoft.NET\Framework\v2.0.50727\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RESA086.tmp" "C:\Users\Admin\AppData\Local\Temp\vbc1E8F1806E875446B8069ED8544F90AD.TMP"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4324
- C:\Users\Admin\AppData\Local\Temp\tmp9F4D.tmp.exe
  "C:\Users\Admin\AppData\Local\Temp\tmp9F4D.tmp.exe" C:\Users\Admin\AppData\Local\Temp\dcf3c61426860a4cc128ab3a5408db291b9a57ad97b6c961efe53fdade34a47e.exe
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:3056

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scripting

T1064

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

Scripting

T1064

Credential Access

Discovery

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

RESA086.tmp

Path C:\Users\Admin\AppData\Local\Temp\RESA086.tmp
Size 1KB
SHA256 456053ef7402ffe8b02ed7ec4f189988f2d03347b27c728a029c01e55ca38dd8
MD5 a9f6936e036a2e80f8b1cc1479fe998f
SHA1 77c67e13ef1971cc42aaff71be186f11c637aa84
SHA512 a02f5b38dbcf98218b8203292d6a388b81aea8d072347903264926295a73f8c1c5a3ca87b8051b4d55b2ec49a29843c098227cf02c69efa4e0c6c137d2dac7f7
MD5 SHA1 SHA512

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efcz_yly.0.vb

Path C:\Users\Admin\AppData\Local\Temp\efcz_yly.0.vb
Size 15KB
SHA256 9ac4644b18c0c38da88700800597eb31659786a285dd6224a9a5d4b7a15e1b85
MD5 0585b7da0515d907213506cbea0174ee
SHA1 289cd8392a9bcc9ffb2690423cebf8d5424ce068
SHA512 4ab477d469ddfa6b683e847b4e545c796a2fa175d4d548284bf9cfb1643e2558033b6169d47a0e9dcdef741450d126564b459ada001a631c2dd65cc30af3af7c
SSDEEP 384:rcNONpNzyN33mNdJN0cHbaE6NvzN7QpSN7eP:AijaadD0cHavhM+m
MD5 SHA1 SHA512 SSDEEP

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efcz_yly.cmdline

Path C:\Users\Admin\AppData\Local\Temp\efcz_yly.cmdline
Size 266B
SHA256 9e8b79b70c28e607e821df764bef4cd0be29b0f1927ea5a52ba137c596a8a94f
MD5 0ee5207faff0a22f3ef24181efdfbb7e
SHA1 4e6f685a877664ba6ba87445526595f5f5e0ff3b
SHA512 4172891b5527749bb0a0362d87355fa365e237b0c87ead5a5e2b954d6d54ff68f06b1f075b3cec476ea87412e0da85ee3c2aa97791ebf292510a7c4a1290a9d5
MD5 SHA1 SHA512

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tmp9F4D.tmp.exe

Path C:\Users\Admin\AppData\Local\Temp\tmp9F4D.tmp.exe
Size 78KB
SHA256 d9d43aaed4afdebd47229b5a932c30698c82849a964aff53c60c2b8468303287
MD5 1fbc13ef47e86c17b8ba5fde9ad07805
SHA1 0adf97262fc0c326d843b0e56f1b0ef55199b382
SHA512 0df21dc4c1973351d15d671b4a3323f28dc8b1e8dffbd2e8f6d4a13065c73337538cc6060bdeeb4fc74f81d4fd816c33057b2a7f1af2ced05b22a4a5f51953f9
SSDEEP 1536:oPy58vXT0XRhyRjVf3hTzdEzcEGvCZ1Hc5RPuoYciQt96FB9/m1h6:oPy58PSyRxvhTzXPvCbW2U6B9/P
MD5 SHA1 SHA512 SSDEEP

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vbc1E8F1806E875446B8069ED8544F90AD.TMP

Path C:\Users\Admin\AppData\Local\Temp\vbc1E8F1806E875446B8069ED8544F90AD.TMP
Size 660B
SHA256 d977b636abc1ec8c3a3fa19786ad0733e51e80222254bc4eda893953b594dd40
MD5 eca07a75b2ef93d5e32a656d0f573db2
SHA1 ec22e3bcff4b85928f2d1b5cd2c05ef304a7170d
SHA512 fe980821fd68fe0833078da1478bffb7bc4af2e56c2204fb6a9101905eea3a7fdf9d44e7948af13b0804a035617fa39be3b1fd69c8904cace121d5060168cb80
MD5 SHA1 SHA512

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zCom.resources

Path C:\Users\Admin\AppData\Local\Temp\zCom.resources
Size 62KB
SHA256 822d92b6f2bd74ba785aa1555b5963c9d7736be1a41241927343dff1caf538d7
MD5 8fd8e054ba10661e530e54511658ac20
SHA1 72911622012ddf68f95c1e1424894ecb4442e6fd
SHA512 c14d729a30b055df18cfac5258c30574ca93bd05fb9a86b4be47ed041c7a4ceefa636bf1c2dd0ccd4c922eda785ce80127374fb70f965c1cf7cd323da5c1b24c
SSDEEP 1536:MXT0XRhyRjVf3hTzdEzcEGvCZ1Hc5RPuoYciQtQ:0SyRxvhTzXPvCbW2UQ
MD5 SHA1 SHA512 SSDEEP

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memory/3056-23-0x0000000075420000-0x00000000759D1000-memory.dmp

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memory/3056-24-0x0000000075420000-0x00000000759D1000-memory.dmp

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memory/3056-25-0x0000000075420000-0x00000000759D1000-memory.dmp

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memory/3056-27-0x0000000075420000-0x00000000759D1000-memory.dmp

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memory/3056-28-0x0000000075420000-0x00000000759D1000-memory.dmp

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memory/3056-29-0x0000000075420000-0x00000000759D1000-memory.dmp

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memory/3788-9-0x0000000075420000-0x00000000759D1000-memory.dmp

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memory/3788-18-0x0000000075420000-0x00000000759D1000-memory.dmp

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memory/4972-22-0x0000000075420000-0x00000000759D1000-memory.dmp

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memory/4972-1-0x0000000075420000-0x00000000759D1000-memory.dmp

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memory/4972-2-0x0000000075420000-0x00000000759D1000-memory.dmp

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memory/4972-0-0x0000000075422000-0x0000000075423000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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