ramnit | b38bb7ed77886a3a7407a39514fe4b5ea89e7b4efacd917e6cac165b4054672c

General

Target

b38bb7ed77886a3a7407a39514fe4b5ea89e7b4efacd917e6cac165b4054672c.exe
Size

216KB
MD5

6dec7ea34abd7e6779bc9abc0b82fb20
SHA1

1d6508621afa345356140103c05c66be142fbab9
SHA256

b38bb7ed77886a3a7407a39514fe4b5ea89e7b4efacd917e6cac165b4054672c
SHA512

fd81d0128c0a15543bf73c5aa0491256a9949bd1ac35bab643449c8ab22ec4ec725bff44d850e3e798d9d68d5fa62ea3cc6e5db851125024c057a90227721699
SSDEEP

3072:X1K3E7lxzLQVHhEA3HYhYAF2GoAnsVsUxfZ5TtoalOV:2QlJEVWA34++vUxZVyMQ

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
4752	b38bb7ed77886a3a7407a39514fe4b5ea89e7b4efacd917e6cac165b4054672cSrv.exe
540	DesktopLayer.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x0002000000022de6-133.dat	upx
behavioral2/files/0x0002000000022de6-134.dat	upx
behavioral2/memory/4752-137-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/files/0x0003000000022de9-138.dat	upx
behavioral2/files/0x0003000000022de9-136.dat	upx
behavioral2/memory/540-139-0x0000000000400000-0x000000000042E000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\pxB1C1.tmp	b38bb7ed77886a3a7407a39514fe4b5ea89e7b4efacd917e6cac165b4054672cSrv.exe
File created	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	b38bb7ed77886a3a7407a39514fe4b5ea89e7b4efacd917e6cac165b4054672cSrv.exe
File opened for modification	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	b38bb7ed77886a3a7407a39514fe4b5ea89e7b4efacd917e6cac165b4054672cSrv.exe

Modifies Internet Explorer settings 1 TTPs 25 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "636841627"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "30987958"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "30987958"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "636841627"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "371518041"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{516A81BC-42A9-11ED-A0EE-7A25E1058669} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
540	DesktopLayer.exe
540	DesktopLayer.exe
540	DesktopLayer.exe
540	DesktopLayer.exe
540	DesktopLayer.exe
540	DesktopLayer.exe
540	DesktopLayer.exe
540	DesktopLayer.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4404	iexplore.exe

Suspicious use of FindShellTrayWindow 5 IoCs

pid	Process
3424	b38bb7ed77886a3a7407a39514fe4b5ea89e7b4efacd917e6cac165b4054672c.exe
3424	b38bb7ed77886a3a7407a39514fe4b5ea89e7b4efacd917e6cac165b4054672c.exe
3424	b38bb7ed77886a3a7407a39514fe4b5ea89e7b4efacd917e6cac165b4054672c.exe
3424	b38bb7ed77886a3a7407a39514fe4b5ea89e7b4efacd917e6cac165b4054672c.exe
4404	iexplore.exe

Suspicious use of SendNotifyMessage 4 IoCs

pid	Process
3424	b38bb7ed77886a3a7407a39514fe4b5ea89e7b4efacd917e6cac165b4054672c.exe
3424	b38bb7ed77886a3a7407a39514fe4b5ea89e7b4efacd917e6cac165b4054672c.exe
3424	b38bb7ed77886a3a7407a39514fe4b5ea89e7b4efacd917e6cac165b4054672c.exe
3424	b38bb7ed77886a3a7407a39514fe4b5ea89e7b4efacd917e6cac165b4054672c.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
4404	iexplore.exe
4404	iexplore.exe
1548	IEXPLORE.EXE
1548	IEXPLORE.EXE
1548	IEXPLORE.EXE
1548	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 3424 wrote to memory of 4752	3424	b38bb7ed77886a3a7407a39514fe4b5ea89e7b4efacd917e6cac165b4054672c.exe	83
PID 3424 wrote to memory of 4752	3424	b38bb7ed77886a3a7407a39514fe4b5ea89e7b4efacd917e6cac165b4054672c.exe	83
PID 3424 wrote to memory of 4752	3424	b38bb7ed77886a3a7407a39514fe4b5ea89e7b4efacd917e6cac165b4054672c.exe	83
PID 4752 wrote to memory of 540	4752	b38bb7ed77886a3a7407a39514fe4b5ea89e7b4efacd917e6cac165b4054672cSrv.exe	84
PID 4752 wrote to memory of 540	4752	b38bb7ed77886a3a7407a39514fe4b5ea89e7b4efacd917e6cac165b4054672cSrv.exe	84
PID 4752 wrote to memory of 540	4752	b38bb7ed77886a3a7407a39514fe4b5ea89e7b4efacd917e6cac165b4054672cSrv.exe	84
PID 540 wrote to memory of 4404	540	DesktopLayer.exe	85
PID 540 wrote to memory of 4404	540	DesktopLayer.exe	85
PID 4404 wrote to memory of 1548	4404	iexplore.exe	87
PID 4404 wrote to memory of 1548	4404	iexplore.exe	87
PID 4404 wrote to memory of 1548	4404	iexplore.exe	87

C:\Users\Admin\AppData\Local\Temp\b38bb7ed77886a3a7407a39514fe4b5ea89e7b4efacd917e6cac165b4054672c.exe
"C:\Users\Admin\AppData\Local\Temp\b38bb7ed77886a3a7407a39514fe4b5ea89e7b4efacd917e6cac165b4054672c.exe"
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:3424
- C:\Users\Admin\AppData\Local\Temp\b38bb7ed77886a3a7407a39514fe4b5ea89e7b4efacd917e6cac165b4054672cSrv.exe
  C:\Users\Admin\AppData\Local\Temp\b38bb7ed77886a3a7407a39514fe4b5ea89e7b4efacd917e6cac165b4054672cSrv.exe
  2⤵
  - Executes dropped EXE
  - Drops file in Program Files directory
  - Suspicious use of WriteProcessMemory
  PID:4752
- - 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:540
  - - C:\Program Files\Internet Explorer\iexplore.exe
      "C:\Program Files\Internet Explorer\iexplore.exe"
      4⤵
      Modifies Internet Explorer settings
      Suspicious behavior: GetForegroundWindowSpam
      Suspicious use of FindShellTrayWindow
      Suspicious use of SetWindowsHookEx
      Suspicious use of WriteProcessMemory
      PID:4404
    - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4404 CREDAT:17410 /prefetch:2
        5⤵
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:1548

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\b38bb7ed77886a3a7407a39514fe4b5ea89e7b4efacd917e6cac165b4054672cSrv.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
C:\Users\Admin\AppData\Local\Temp\b38bb7ed77886a3a7407a39514fe4b5ea89e7b4efacd917e6cac165b4054672cSrv.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
memory/540-139-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/3424-140-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/3424-141-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/4752-137-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download

Analysis

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