ramnit | 6cc446035e3c53d9b6c1962abe7c8970e2be0ff0ec2cc5eb9bed4d4dc0c907cf

Analysis

max time kernel
106s
max time network
199s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
11/10/2022, 12:13

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General

Target

6cc446035e3c53d9b6c1962abe7c8970e2be0ff0ec2cc5eb9bed4d4dc0c907cf.exe
Size

563KB
MD5

479afc9b85f6f79ddf3a1c77485608e0
SHA1

06fc0786770f9169bf66e803563755e3e3393cf4
SHA256

6cc446035e3c53d9b6c1962abe7c8970e2be0ff0ec2cc5eb9bed4d4dc0c907cf
SHA512

d457910c793ecf2dc25079e7b464a2cbc574c54117ee9f99050737384e20f105de607371183568884ba89db1fff546b6e9ae886147ac402a6d3c4831830e1666
SSDEEP

12288:WrnkzL6RcJq3U+LKyB/AGBZrTBSn7q8G8luor8S+mGvpB4wrj:WoQcJj8KwBSn+Iw3SpUDP

Score

10^/10

ramnit banker spyware stealer trojan upx worm

Malware Config

Signatures

Ramnit
Ramnit is a versatile family that holds viruses, worms, and Trojans.
trojan spyware stealer worm banker ramnit

Executes dropped EXE 2 IoCs

pid	Process
1708	6cc446035e3c53d9b6c1962abe7c8970e2be0ff0ec2cc5eb9bed4d4dc0c907cfSrv.exe
3332	DesktopLayer.exe

UPX packed file 6 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/files/0x000d000000022deb-133.dat	upx
behavioral2/files/0x000d000000022deb-134.dat	upx
behavioral2/memory/3332-142-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/files/0x0008000000022e26-140.dat	upx
behavioral2/files/0x0008000000022e26-139.dat	upx
behavioral2/memory/1708-136-0x0000000000400000-0x000000000042E000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\pxF457.tmp	6cc446035e3c53d9b6c1962abe7c8970e2be0ff0ec2cc5eb9bed4d4dc0c907cfSrv.exe
File created	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	6cc446035e3c53d9b6c1962abe7c8970e2be0ff0ec2cc5eb9bed4d4dc0c907cfSrv.exe
File opened for modification	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	6cc446035e3c53d9b6c1962abe7c8970e2be0ff0ec2cc5eb9bed4d4dc0c907cfSrv.exe

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

System Information Discovery
T1082

Modifies Internet Explorer settings 1 TTPs 28 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "4057514091"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "372279434"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "4045794962"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "4045794962"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{1B6771D2-4996-11ED-89AC-DEF0885D2AEB} = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "30989730"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "30989730"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "30989730"	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
3332	DesktopLayer.exe
3332	DesktopLayer.exe
3332	DesktopLayer.exe
3332	DesktopLayer.exe
3332	DesktopLayer.exe
3332	DesktopLayer.exe
3332	DesktopLayer.exe
3332	DesktopLayer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4064	iexplore.exe

Suspicious use of SetWindowsHookEx 7 IoCs

pid	Process
2032	6cc446035e3c53d9b6c1962abe7c8970e2be0ff0ec2cc5eb9bed4d4dc0c907cf.exe
2032	6cc446035e3c53d9b6c1962abe7c8970e2be0ff0ec2cc5eb9bed4d4dc0c907cf.exe
4064	iexplore.exe
4064	iexplore.exe
2032	6cc446035e3c53d9b6c1962abe7c8970e2be0ff0ec2cc5eb9bed4d4dc0c907cf.exe
4312	IEXPLORE.EXE
4312	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2032 wrote to memory of 1708	2032	6cc446035e3c53d9b6c1962abe7c8970e2be0ff0ec2cc5eb9bed4d4dc0c907cf.exe	81
PID 2032 wrote to memory of 1708	2032	6cc446035e3c53d9b6c1962abe7c8970e2be0ff0ec2cc5eb9bed4d4dc0c907cf.exe	81
PID 2032 wrote to memory of 1708	2032	6cc446035e3c53d9b6c1962abe7c8970e2be0ff0ec2cc5eb9bed4d4dc0c907cf.exe	81
PID 1708 wrote to memory of 3332	1708	6cc446035e3c53d9b6c1962abe7c8970e2be0ff0ec2cc5eb9bed4d4dc0c907cfSrv.exe	82
PID 1708 wrote to memory of 3332	1708	6cc446035e3c53d9b6c1962abe7c8970e2be0ff0ec2cc5eb9bed4d4dc0c907cfSrv.exe	82
PID 1708 wrote to memory of 3332	1708	6cc446035e3c53d9b6c1962abe7c8970e2be0ff0ec2cc5eb9bed4d4dc0c907cfSrv.exe	82
PID 3332 wrote to memory of 4064	3332	DesktopLayer.exe	83
PID 3332 wrote to memory of 4064	3332	DesktopLayer.exe	83
PID 4064 wrote to memory of 4312	4064	iexplore.exe	84
PID 4064 wrote to memory of 4312	4064	iexplore.exe	84
PID 4064 wrote to memory of 4312	4064	iexplore.exe	84

C:\Users\Admin\AppData\Local\Temp\6cc446035e3c53d9b6c1962abe7c8970e2be0ff0ec2cc5eb9bed4d4dc0c907cf.exe
"C:\Users\Admin\AppData\Local\Temp\6cc446035e3c53d9b6c1962abe7c8970e2be0ff0ec2cc5eb9bed4d4dc0c907cf.exe"
1⤵
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2032
- C:\Users\Admin\AppData\Local\Temp\6cc446035e3c53d9b6c1962abe7c8970e2be0ff0ec2cc5eb9bed4d4dc0c907cfSrv.exe
  C:\Users\Admin\AppData\Local\Temp\6cc446035e3c53d9b6c1962abe7c8970e2be0ff0ec2cc5eb9bed4d4dc0c907cfSrv.exe
  2⤵
  - Executes dropped EXE
  - Drops file in Program Files directory
  - Suspicious use of WriteProcessMemory
  PID:1708
- - C:\Program Files (x86)\Microsoft\DesktopLayer.exe
    "C:\Program Files (x86)\Microsoft\DesktopLayer.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:3332
  - - C:\Program Files\Internet Explorer\iexplore.exe
      "C:\Program Files\Internet Explorer\iexplore.exe"
      4⤵
      Modifies Internet Explorer settings
      Suspicious use of FindShellTrayWindow
      Suspicious use of SetWindowsHookEx
      Suspicious use of WriteProcessMemory
      PID:4064
    - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4064 CREDAT:17410 /prefetch:2
        5⤵
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:4312

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Program Files (x86)\Microsoft\DesktopLayer.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
C:\Program Files (x86)\Microsoft\DesktopLayer.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

Filesize
471B

MD5
7de3527d962389a61a0825bebf9031b7

SHA1
ffc04b363ec1d3976e454446827d36813002a9b7

SHA256
63db191be3bdce3f969a6f457edaa2bf5c9ec863a311540d719ad80ca9ce4a19

SHA512
57220b86487cefb01b4c2b9b904a147ea35133f490d5da092dbf10e1568c14a2f1359ed36529edc779335a9f4530c25a67d2065620379eec0e682b03389ae91d

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

Filesize
404B

MD5
57e5179fc378bd24f49825f0c67d529d

SHA1
e0b77309f995cf41367db32737cffc2e5e0c5a4b

SHA256
0fa3412180c8995789f2c5e23fce46e0a570fbc1bcf0d45b2d77a659a156d3df

SHA512
eabf92797726486402c417f4853c0818eeea9e076348fb4f2879db27832d13c2a5188b6e188a80529c43923b447305203b009eb506db90eb94befd32da053f8f

Download Submit
C:\Users\Admin\AppData\Local\Temp\6cc446035e3c53d9b6c1962abe7c8970e2be0ff0ec2cc5eb9bed4d4dc0c907cfSrv.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
C:\Users\Admin\AppData\Local\Temp\6cc446035e3c53d9b6c1962abe7c8970e2be0ff0ec2cc5eb9bed4d4dc0c907cfSrv.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
memory/1708-144-0x0000000000540000-0x000000000054F000-memory.dmp

Filesize
60KB

Download
memory/1708-138-0x0000000000540000-0x000000000054F000-memory.dmp

Filesize
60KB

Download
memory/1708-136-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2032-143-0x0000000000400000-0x0000000000579000-memory.dmp

Filesize
1.5MB

Download
memory/2032-135-0x0000000000400000-0x0000000000579000-memory.dmp

Filesize
1.5MB

Download
memory/3332-141-0x0000000000540000-0x000000000054F000-memory.dmp

Filesize
60KB

Download
memory/3332-145-0x0000000000540000-0x000000000054F000-memory.dmp

Filesize
60KB

Download
memory/3332-142-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download