ramnit | 91ee2bd912bae2cd88271e3411fd80f48dee2848529305ec6f9577a0980343f2

Analysis

max time kernel
108s
max time network
153s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
21/11/2022, 10:41

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General

Target

91ee2bd912bae2cd88271e3411fd80f48dee2848529305ec6f9577a0980343f2.exe
Size

604KB
MD5

30783f4c8176f8c4c0904f708986ce00
SHA1

f3728c58e21b0dada3fb4d84f6a26dcdea95548f
SHA256

91ee2bd912bae2cd88271e3411fd80f48dee2848529305ec6f9577a0980343f2
SHA512

5227e7c47a29773804a8800e11b419f19ab1512518d26b7d7dcbb17d6ed3fc2f901d472c02a818d3d80c281e91653603a52b275dbdb1eda47f25bbb387456b1f
SSDEEP

12288:QHiVgpen2Ys7zWjMCKxaiPnW/0cfByu34oN579l5iLOjKDKFiSU:sDW9KciPvyyu34otlKOK+

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
1360	91ee2bd912bae2cd88271e3411fd80f48dee2848529305ec6f9577a0980343f2Srv.exe
1184	DesktopLayer.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x000b000000012325-55.dat	upx
behavioral1/files/0x000b000000012325-57.dat	upx
behavioral1/files/0x000b000000012325-59.dat	upx
behavioral1/files/0x000900000001270c-67.dat	upx
behavioral1/memory/1360-71-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral1/memory/1184-76-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral1/files/0x000900000001270c-72.dat	upx
behavioral1/files/0x000900000001270c-75.dat	upx

Loads dropped DLL 2 IoCs

pid	Process
1980	91ee2bd912bae2cd88271e3411fd80f48dee2848529305ec6f9577a0980343f2.exe
1360	91ee2bd912bae2cd88271e3411fd80f48dee2848529305ec6f9577a0980343f2Srv.exe

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\px1121.tmp	91ee2bd912bae2cd88271e3411fd80f48dee2848529305ec6f9577a0980343f2Srv.exe
File created	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	91ee2bd912bae2cd88271e3411fd80f48dee2848529305ec6f9577a0980343f2Srv.exe
File opened for modification	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	91ee2bd912bae2cd88271e3411fd80f48dee2848529305ec6f9577a0980343f2Srv.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 30 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\IntelliForms	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\LowRegistry	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Toolbar	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\SearchScopes\DownloadRetries = "2"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\IETld\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Zoom	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{64A40A81-6991-11ED-B5FD-C6AD45B766F5} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\GPU	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\InternetRegistry	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\PageSetup	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\SearchScopes	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "375795856"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1184	DesktopLayer.exe
1184	DesktopLayer.exe
1184	DesktopLayer.exe
1184	DesktopLayer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1056	iexplore.exe

Suspicious use of SetWindowsHookEx 8 IoCs

pid	Process
1980	91ee2bd912bae2cd88271e3411fd80f48dee2848529305ec6f9577a0980343f2.exe
1980	91ee2bd912bae2cd88271e3411fd80f48dee2848529305ec6f9577a0980343f2.exe
1056	iexplore.exe
1056	iexplore.exe
1656	IEXPLORE.EXE
1656	IEXPLORE.EXE
1656	IEXPLORE.EXE
1656	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 27 IoCs

description	pid	Process	procid_target
PID 1980 wrote to memory of 1360	1980	91ee2bd912bae2cd88271e3411fd80f48dee2848529305ec6f9577a0980343f2.exe	28
PID 1980 wrote to memory of 1360	1980	91ee2bd912bae2cd88271e3411fd80f48dee2848529305ec6f9577a0980343f2.exe	28
PID 1980 wrote to memory of 1360	1980	91ee2bd912bae2cd88271e3411fd80f48dee2848529305ec6f9577a0980343f2.exe	28
PID 1980 wrote to memory of 1360	1980	91ee2bd912bae2cd88271e3411fd80f48dee2848529305ec6f9577a0980343f2.exe	28
PID 1980 wrote to memory of 1224	1980	91ee2bd912bae2cd88271e3411fd80f48dee2848529305ec6f9577a0980343f2.exe	10
PID 1980 wrote to memory of 1224	1980	91ee2bd912bae2cd88271e3411fd80f48dee2848529305ec6f9577a0980343f2.exe	10
PID 1980 wrote to memory of 1224	1980	91ee2bd912bae2cd88271e3411fd80f48dee2848529305ec6f9577a0980343f2.exe	10
PID 1980 wrote to memory of 1224	1980	91ee2bd912bae2cd88271e3411fd80f48dee2848529305ec6f9577a0980343f2.exe	10
PID 1980 wrote to memory of 1224	1980	91ee2bd912bae2cd88271e3411fd80f48dee2848529305ec6f9577a0980343f2.exe	10
PID 1980 wrote to memory of 1224	1980	91ee2bd912bae2cd88271e3411fd80f48dee2848529305ec6f9577a0980343f2.exe	10
PID 1980 wrote to memory of 1224	1980	91ee2bd912bae2cd88271e3411fd80f48dee2848529305ec6f9577a0980343f2.exe	10
PID 1360 wrote to memory of 1184	1360	91ee2bd912bae2cd88271e3411fd80f48dee2848529305ec6f9577a0980343f2Srv.exe	29
PID 1360 wrote to memory of 1184	1360	91ee2bd912bae2cd88271e3411fd80f48dee2848529305ec6f9577a0980343f2Srv.exe	29
PID 1360 wrote to memory of 1184	1360	91ee2bd912bae2cd88271e3411fd80f48dee2848529305ec6f9577a0980343f2Srv.exe	29
PID 1360 wrote to memory of 1184	1360	91ee2bd912bae2cd88271e3411fd80f48dee2848529305ec6f9577a0980343f2Srv.exe	29
PID 1980 wrote to memory of 1224	1980	91ee2bd912bae2cd88271e3411fd80f48dee2848529305ec6f9577a0980343f2.exe	10
PID 1980 wrote to memory of 1224	1980	91ee2bd912bae2cd88271e3411fd80f48dee2848529305ec6f9577a0980343f2.exe	10
PID 1980 wrote to memory of 1224	1980	91ee2bd912bae2cd88271e3411fd80f48dee2848529305ec6f9577a0980343f2.exe	10
PID 1184 wrote to memory of 1056	1184	DesktopLayer.exe	30
PID 1184 wrote to memory of 1056	1184	DesktopLayer.exe	30
PID 1184 wrote to memory of 1056	1184	DesktopLayer.exe	30
PID 1184 wrote to memory of 1056	1184	DesktopLayer.exe	30
PID 1980 wrote to memory of 1224	1980	91ee2bd912bae2cd88271e3411fd80f48dee2848529305ec6f9577a0980343f2.exe	10
PID 1056 wrote to memory of 1656	1056	iexplore.exe	32
PID 1056 wrote to memory of 1656	1056	iexplore.exe	32
PID 1056 wrote to memory of 1656	1056	iexplore.exe	32
PID 1056 wrote to memory of 1656	1056	iexplore.exe	32

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1224
- C:\Users\Admin\AppData\Local\Temp\91ee2bd912bae2cd88271e3411fd80f48dee2848529305ec6f9577a0980343f2.exe
  "C:\Users\Admin\AppData\Local\Temp\91ee2bd912bae2cd88271e3411fd80f48dee2848529305ec6f9577a0980343f2.exe"
  2⤵
  - Loads dropped DLL
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1980
- - C:\Users\Admin\AppData\Local\Temp\91ee2bd912bae2cd88271e3411fd80f48dee2848529305ec6f9577a0980343f2Srv.exe
    C:\Users\Admin\AppData\Local\Temp\91ee2bd912bae2cd88271e3411fd80f48dee2848529305ec6f9577a0980343f2Srv.exe
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Drops file in Program Files directory
    - Suspicious use of WriteProcessMemory
    PID:1360
  - - C:\Program Files (x86)\Microsoft\DesktopLayer.exe
      "C:\Program Files (x86)\Microsoft\DesktopLayer.exe"
      4⤵
      Executes dropped EXE
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of WriteProcessMemory
      PID:1184
    - - C:\Program Files\Internet Explorer\iexplore.exe
        
        "C:\Program Files\Internet Explorer\iexplore.exe"
        5⤵
        Modifies Internet Explorer settings
        Suspicious use of FindShellTrayWindow
        Suspicious use of SetWindowsHookEx
        Suspicious use of WriteProcessMemory
        
        PID:1056
      - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1056 CREDAT:275457 /prefetch:2
        6⤵
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:1656

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\Local\Temp\91ee2bd912bae2cd88271e3411fd80f48dee2848529305ec6f9577a0980343f2Srv.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
C:\Users\Admin\AppData\Local\Temp\91ee2bd912bae2cd88271e3411fd80f48dee2848529305ec6f9577a0980343f2Srv.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\FLGR3ED6.txt

Filesize
608B

MD5
d4a5a38cf0ffeef511b36e4f0e84dfe0

SHA1
2861f7493296c0aeff164bd332dc2db831fd3131

SHA256
bbdc8f69995adffc52fef9af6ac60205e5760fe7885e90603ff8956bfc6ef73e

SHA512
69fd8c8c0f59daeb648549fad8f69153ac853b31e4949a63b9111c1f532c008b8ea0fbb2ec169481073714407f324e812066536664f3046c9896643e5d5006b5

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

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
\Users\Admin\AppData\Local\Temp\91ee2bd912bae2cd88271e3411fd80f48dee2848529305ec6f9577a0980343f2Srv.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
memory/1184-76-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1224-60-0x00000000024A0000-0x00000000024A1000-memory.dmp

Filesize
4KB

Download
memory/1224-74-0x00000000024A0000-0x00000000024A1000-memory.dmp

Filesize
4KB

Download
memory/1224-64-0x00000000024A0000-0x00000000024A1000-memory.dmp

Filesize
4KB

Download
memory/1224-69-0x00000000024A0000-0x00000000024A1000-memory.dmp

Filesize
4KB

Download
memory/1224-66-0x00000000024A0000-0x00000000024A1000-memory.dmp

Filesize
4KB

Download
memory/1224-70-0x00000000024A0000-0x00000000024A1000-memory.dmp

Filesize
4KB

Download
memory/1224-63-0x00000000024A0000-0x00000000024A1000-memory.dmp

Filesize
4KB

Download
memory/1224-62-0x00000000024A0000-0x00000000024A1000-memory.dmp

Filesize
4KB

Download
memory/1224-61-0x00000000024A0000-0x00000000024A1000-memory.dmp

Filesize
4KB

Download
memory/1224-65-0x00000000024A0000-0x00000000024A1000-memory.dmp

Filesize
4KB

Download
memory/1360-71-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1980-54-0x0000000075761000-0x0000000075763000-memory.dmp

Filesize
8KB

Download
memory/1980-77-0x00000000008A0000-0x0000000000940000-memory.dmp

Filesize
640KB

Download