ramnit | 2bfe76bf34ede6d37d52b0d6e0e46e62246f51d13305003a4d472ec4671e8df3

General

Target

2bfe76bf34ede6d37d52b0d6e0e46e62246f51d13305003a4d472ec4671e8df3.exe
Size

630KB
MD5

601ddfdee593a71b12a072a8f25156b0
SHA1

57516d50bced81ebe2d34328a12f3a97dcb9f59e
SHA256

2bfe76bf34ede6d37d52b0d6e0e46e62246f51d13305003a4d472ec4671e8df3
SHA512

5e47fbea71b3ca6950f706520954c1f4063c74661a28a8999e63582213e72a7b17a74ac01dc658fbb38c34f7b43be87393ca363836bd1b4ad1665e299d5b5d49
SSDEEP

12288:zyyKdVnyNhXCV4EkP7AIfzNXZ0b5NrnkcAqIV0A1caRIqDwm1:zKvyNhXCV4E8BXAfrnkcAqU0A7M

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
3816	2bfe76bf34ede6d37d52b0d6e0e46e62246f51d13305003a4d472ec4671e8df3Srv.exe
4980	DesktopLayer.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x0009000000022e04-134.dat	upx
behavioral2/files/0x0009000000022e04-136.dat	upx
behavioral2/files/0x000a000000022e12-138.dat	upx
behavioral2/memory/3816-140-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/files/0x000a000000022e12-139.dat	upx
behavioral2/memory/4980-141-0x0000000000400000-0x000000000042E000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\px7813.tmp	2bfe76bf34ede6d37d52b0d6e0e46e62246f51d13305003a4d472ec4671e8df3Srv.exe
File created	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	2bfe76bf34ede6d37d52b0d6e0e46e62246f51d13305003a4d472ec4671e8df3Srv.exe
File opened for modification	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	2bfe76bf34ede6d37d52b0d6e0e46e62246f51d13305003a4d472ec4671e8df3Srv.exe

Modifies Internet Explorer settings 1 TTPs 20 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "30988158"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "30988158"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "371001002"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{B0FDF637-4371-11ED-B696-466E527D41B2} = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "2714560252"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "2714560252"	IEXPLORE.EXE

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
4980	DesktopLayer.exe
4980	DesktopLayer.exe
4980	DesktopLayer.exe
4980	DesktopLayer.exe
4980	DesktopLayer.exe
4980	DesktopLayer.exe
4980	DesktopLayer.exe
4980	DesktopLayer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
5032	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
5032	iexplore.exe
5032	iexplore.exe
2032	IEXPLORE.EXE
2032	IEXPLORE.EXE
2032	IEXPLORE.EXE
2032	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 3876 wrote to memory of 3816	3876	2bfe76bf34ede6d37d52b0d6e0e46e62246f51d13305003a4d472ec4671e8df3.exe	82
PID 3876 wrote to memory of 3816	3876	2bfe76bf34ede6d37d52b0d6e0e46e62246f51d13305003a4d472ec4671e8df3.exe	82
PID 3876 wrote to memory of 3816	3876	2bfe76bf34ede6d37d52b0d6e0e46e62246f51d13305003a4d472ec4671e8df3.exe	82
PID 3816 wrote to memory of 4980	3816	2bfe76bf34ede6d37d52b0d6e0e46e62246f51d13305003a4d472ec4671e8df3Srv.exe	83
PID 3816 wrote to memory of 4980	3816	2bfe76bf34ede6d37d52b0d6e0e46e62246f51d13305003a4d472ec4671e8df3Srv.exe	83
PID 3816 wrote to memory of 4980	3816	2bfe76bf34ede6d37d52b0d6e0e46e62246f51d13305003a4d472ec4671e8df3Srv.exe	83
PID 4980 wrote to memory of 5032	4980	DesktopLayer.exe	84
PID 4980 wrote to memory of 5032	4980	DesktopLayer.exe	84
PID 5032 wrote to memory of 2032	5032	iexplore.exe	85
PID 5032 wrote to memory of 2032	5032	iexplore.exe	85
PID 5032 wrote to memory of 2032	5032	iexplore.exe	85

C:\Users\Admin\AppData\Local\Temp\2bfe76bf34ede6d37d52b0d6e0e46e62246f51d13305003a4d472ec4671e8df3.exe
"C:\Users\Admin\AppData\Local\Temp\2bfe76bf34ede6d37d52b0d6e0e46e62246f51d13305003a4d472ec4671e8df3.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3876
- C:\Users\Admin\AppData\Local\Temp\2bfe76bf34ede6d37d52b0d6e0e46e62246f51d13305003a4d472ec4671e8df3Srv.exe
  C:\Users\Admin\AppData\Local\Temp\2bfe76bf34ede6d37d52b0d6e0e46e62246f51d13305003a4d472ec4671e8df3Srv.exe
  2⤵
  - Executes dropped EXE
  - Drops file in Program Files directory
  - Suspicious use of WriteProcessMemory
  PID:3816
- - 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:4980
  - - 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:5032
    - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:5032 CREDAT:17410 /prefetch:2
        5⤵
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:2032

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

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\Local\Temp\2bfe76bf34ede6d37d52b0d6e0e46e62246f51d13305003a4d472ec4671e8df3Srv.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
C:\Users\Admin\AppData\Local\Temp\2bfe76bf34ede6d37d52b0d6e0e46e62246f51d13305003a4d472ec4671e8df3Srv.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
memory/3816-140-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/3876-132-0x0000000000400000-0x00000000004A9000-memory.dmp

Filesize
676KB

Download
memory/3876-135-0x0000000000400000-0x00000000004A9000-memory.dmp

Filesize
676KB

Download
memory/4980-141-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download

Analysis

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