ramnit | 23c5bd02ed442c9bd949da1961bc837c2fdaf16ad457f5b3d626dfe21bd636d9

Analysis

max time kernel
139s
max time network
158s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
24-11-2022 09:25

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General

Target

23c5bd02ed442c9bd949da1961bc837c2fdaf16ad457f5b3d626dfe21bd636d9.exe
Size

11.3MB
MD5

c7920933d10ab7932862a208159069a3
SHA1

d59dde7ab2289dc74d0cde11b262553f657d6714
SHA256

23c5bd02ed442c9bd949da1961bc837c2fdaf16ad457f5b3d626dfe21bd636d9
SHA512

ca1c41175d00a86e851b92b14ee1c1d9215691b78f1a95c0170b6ada373fda8f2a4da536a27155acc7c573452801e9fea597beb61bd39edfd11247b504fc5533
SSDEEP

196608:WQFNkeDUGjI6iZY1kRm6wXe1fkwaY8fAi+JvX5Z/9Lj+2VCndQdfdf3FuWiFj:WQzhFI6iZSofbf8fYZX5Bt+Zwfd3FfCj

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
2004	23c5bd02ed442c9bd949da1961bc837c2fdaf16ad457f5b3d626dfe21bd636d9Srv.exe
1112	DesktopLayer.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x00070000000139fa-56.dat	upx
behavioral1/files/0x00070000000139fa-58.dat	upx
behavioral1/files/0x00070000000139fa-61.dat	upx
behavioral1/files/0x0008000000013a48-62.dat	upx
behavioral1/memory/2004-65-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral1/files/0x0008000000013a48-64.dat	upx
behavioral1/files/0x0008000000013a48-67.dat	upx
behavioral1/memory/1112-68-0x0000000000400000-0x000000000042E000-memory.dmp	upx

Loads dropped DLL 5 IoCs

pid	Process
2032	23c5bd02ed442c9bd949da1961bc837c2fdaf16ad457f5b3d626dfe21bd636d9.exe
2032	23c5bd02ed442c9bd949da1961bc837c2fdaf16ad457f5b3d626dfe21bd636d9.exe
2032	23c5bd02ed442c9bd949da1961bc837c2fdaf16ad457f5b3d626dfe21bd636d9.exe
2004	23c5bd02ed442c9bd949da1961bc837c2fdaf16ad457f5b3d626dfe21bd636d9Srv.exe
2032	23c5bd02ed442c9bd949da1961bc837c2fdaf16ad457f5b3d626dfe21bd636d9.exe

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\px4CBA.tmp	23c5bd02ed442c9bd949da1961bc837c2fdaf16ad457f5b3d626dfe21bd636d9Srv.exe
File created	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	23c5bd02ed442c9bd949da1961bc837c2fdaf16ad457f5b3d626dfe21bd636d9Srv.exe
File opened for modification	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	23c5bd02ed442c9bd949da1961bc837c2fdaf16ad457f5b3d626dfe21bd636d9Srv.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-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Internet Explorer\IETld\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Internet Explorer\PageSetup	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "376064817"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Internet Explorer\LowRegistry	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Internet Explorer\Toolbar	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Internet Explorer\Zoom	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Internet Explorer\SearchScopes\DownloadRetries = "2"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Internet Explorer\GPU	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Internet Explorer\SearchScopes	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Internet Explorer\IntelliForms	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Internet Explorer\InternetRegistry	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{95E79FC1-6C03-11ED-B3C3-5263E908E3CD} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain	iexplore.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1112	DesktopLayer.exe
1112	DesktopLayer.exe
1112	DesktopLayer.exe
1112	DesktopLayer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
268	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
268	iexplore.exe
268	iexplore.exe
1648	IEXPLORE.EXE
1648	IEXPLORE.EXE
1648	IEXPLORE.EXE
1648	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 2032 wrote to memory of 2004	2032	23c5bd02ed442c9bd949da1961bc837c2fdaf16ad457f5b3d626dfe21bd636d9.exe	28
PID 2032 wrote to memory of 2004	2032	23c5bd02ed442c9bd949da1961bc837c2fdaf16ad457f5b3d626dfe21bd636d9.exe	28
PID 2032 wrote to memory of 2004	2032	23c5bd02ed442c9bd949da1961bc837c2fdaf16ad457f5b3d626dfe21bd636d9.exe	28
PID 2032 wrote to memory of 2004	2032	23c5bd02ed442c9bd949da1961bc837c2fdaf16ad457f5b3d626dfe21bd636d9.exe	28
PID 2004 wrote to memory of 1112	2004	23c5bd02ed442c9bd949da1961bc837c2fdaf16ad457f5b3d626dfe21bd636d9Srv.exe	29
PID 2004 wrote to memory of 1112	2004	23c5bd02ed442c9bd949da1961bc837c2fdaf16ad457f5b3d626dfe21bd636d9Srv.exe	29
PID 2004 wrote to memory of 1112	2004	23c5bd02ed442c9bd949da1961bc837c2fdaf16ad457f5b3d626dfe21bd636d9Srv.exe	29
PID 2004 wrote to memory of 1112	2004	23c5bd02ed442c9bd949da1961bc837c2fdaf16ad457f5b3d626dfe21bd636d9Srv.exe	29
PID 1112 wrote to memory of 268	1112	DesktopLayer.exe	30
PID 1112 wrote to memory of 268	1112	DesktopLayer.exe	30
PID 1112 wrote to memory of 268	1112	DesktopLayer.exe	30
PID 1112 wrote to memory of 268	1112	DesktopLayer.exe	30
PID 268 wrote to memory of 1648	268	iexplore.exe	32
PID 268 wrote to memory of 1648	268	iexplore.exe	32
PID 268 wrote to memory of 1648	268	iexplore.exe	32
PID 268 wrote to memory of 1648	268	iexplore.exe	32

C:\Users\Admin\AppData\Local\Temp\23c5bd02ed442c9bd949da1961bc837c2fdaf16ad457f5b3d626dfe21bd636d9.exe
"C:\Users\Admin\AppData\Local\Temp\23c5bd02ed442c9bd949da1961bc837c2fdaf16ad457f5b3d626dfe21bd636d9.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2032
- C:\Users\Admin\AppData\Local\Temp\23c5bd02ed442c9bd949da1961bc837c2fdaf16ad457f5b3d626dfe21bd636d9Srv.exe
  C:\Users\Admin\AppData\Local\Temp\23c5bd02ed442c9bd949da1961bc837c2fdaf16ad457f5b3d626dfe21bd636d9Srv.exe
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in Program Files directory
  - Suspicious use of WriteProcessMemory
  PID:2004
- - 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:1112
  - - 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:268
    - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:268 CREDAT:275457 /prefetch:2
        5⤵
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:1648

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\23c5bd02ed442c9bd949da1961bc837c2fdaf16ad457f5b3d626dfe21bd636d9Srv.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
C:\Users\Admin\AppData\Local\Temp\23c5bd02ed442c9bd949da1961bc837c2fdaf16ad457f5b3d626dfe21bd636d9Srv.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\H1ISYLS6.txt

Filesize
608B

MD5
b7ad0790a9aa72fe448d5a701aa85890

SHA1
20f666c04c9e9791506aecba03b14abdf3ed8dc0

SHA256
076ab1b01451738d75022b81088ac824144dc0f7ac15ef98d9d8adc4a24caba4

SHA512
47250242dc6828d4b1dbe7bf6a4f89f61d1281a5a53cab6e5a5cd7514a2eadab38b58b6766c73ecad09bbba645895102ed0612c2bf8c91c7d2e6e48118dcc3dd

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\23c5bd02ed442c9bd949da1961bc837c2fdaf16ad457f5b3d626dfe21bd636d9Srv.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
\Users\Admin\AppData\Local\Temp\nsj4B74.tmp\ButtonLinker.dll

Filesize
7KB

MD5
dd85ac7d85c92dd0e3cc17dfd4890f54

SHA1
a128fb7a05965c1a9913c6f5e419e6c4c0a7d2fa

SHA256
27abd2a4fb1bf66add60221b52d061bbe24d2d21e13600725ff7a5c6c777b504

SHA512
e4ff8216c65110a9d156f37c2062acb53a72daa8af12dfc24278920d9e1a4083a81b1446759df75405b2da34c7bfb1afc33184feedd0aee4ed73f79fcbb1a8a1

Download Submit
\Users\Admin\AppData\Local\Temp\nsj4B74.tmp\System.dll

Filesize
67KB

MD5
8fef2ddc02a88527acf5f875aa79590a

SHA1
b3ebe53a0037789c155992eee0547de1a76712b9

SHA256
5b06944f0b948937d87a68d0d584f8de8f169298f5db95336f55696079e88d50

SHA512
7f231356313b7aa4882bfd205529d65022397c91a5aab3658d655524aa3bfe855432ac35cd455f8750530e1b9582e71c710abb94d610ff1ec3e13d5a193d19de

Download Submit
\Users\Admin\AppData\Local\Temp\nsj4B74.tmp\System.dll

Filesize
67KB

MD5
8fef2ddc02a88527acf5f875aa79590a

SHA1
b3ebe53a0037789c155992eee0547de1a76712b9

SHA256
5b06944f0b948937d87a68d0d584f8de8f169298f5db95336f55696079e88d50

SHA512
7f231356313b7aa4882bfd205529d65022397c91a5aab3658d655524aa3bfe855432ac35cd455f8750530e1b9582e71c710abb94d610ff1ec3e13d5a193d19de

Download Submit
memory/1112-68-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1112-63-0x0000000000000000-mapping.dmp

Download
memory/2004-65-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2004-57-0x0000000000000000-mapping.dmp

Download
memory/2032-54-0x0000000075C21000-0x0000000075C23000-memory.dmp

Filesize
8KB

Download
memory/2032-70-0x0000000010000000-0x0000000010015000-memory.dmp

Filesize
84KB

Download
memory/2032-71-0x0000000000370000-0x000000000039E000-memory.dmp

Filesize
184KB

Download
memory/2032-72-0x0000000000370000-0x000000000039E000-memory.dmp

Filesize
184KB

Download