ramnit | f4e720886d7e57471754831478e62bf5961593847b0f5ce462be901f004ca977

Analysis

max time kernel
119s
max time network
189s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
25/11/2022, 12:57

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General

Target

f4e720886d7e57471754831478e62bf5961593847b0f5ce462be901f004ca977.exe
Size

2.5MB
MD5

edf4cd87633de7e80ad6471e8fef3fe9
SHA1

603fcece021d55ccb11bc37a453456f03898fb93
SHA256

f4e720886d7e57471754831478e62bf5961593847b0f5ce462be901f004ca977
SHA512

1d6245002aa4576125127c21640b2d1bc06530fd8bce4499e0a3ccadcc9e5e1b37a0d8e010c36f23f90cacf321dd93c26d0c1778ef1990fd24baeb039022f1a4
SSDEEP

49152:2OyfyD2phLtaAGcoaNKIayOzRk/n5IOM/I+pY2I69WKjLgz3eFo8whJGD5:8DLQA8AONk/nhM/1Y2I69WKBVsJQ5

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
1732	f4e720886d7e57471754831478e62bf5961593847b0f5ce462be901f004ca977Srv.exe
1812	DesktopLayer.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x0008000000012314-56.dat	upx
behavioral1/files/0x0008000000012314-59.dat	upx
behavioral1/files/0x0008000000012314-61.dat	upx
behavioral1/files/0x000900000001232d-62.dat	upx
behavioral1/memory/1732-65-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral1/files/0x000900000001232d-67.dat	upx
behavioral1/files/0x000900000001232d-64.dat	upx
behavioral1/memory/1812-68-0x0000000000400000-0x000000000042E000-memory.dmp	upx

Loads dropped DLL 5 IoCs

pid	Process
564	f4e720886d7e57471754831478e62bf5961593847b0f5ce462be901f004ca977.exe
564	f4e720886d7e57471754831478e62bf5961593847b0f5ce462be901f004ca977.exe
564	f4e720886d7e57471754831478e62bf5961593847b0f5ce462be901f004ca977.exe
1732	f4e720886d7e57471754831478e62bf5961593847b0f5ce462be901f004ca977Srv.exe
564	f4e720886d7e57471754831478e62bf5961593847b0f5ce462be901f004ca977.exe

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\pxA278.tmp	f4e720886d7e57471754831478e62bf5961593847b0f5ce462be901f004ca977Srv.exe
File created	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	f4e720886d7e57471754831478e62bf5961593847b0f5ce462be901f004ca977Srv.exe
File opened for modification	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	f4e720886d7e57471754831478e62bf5961593847b0f5ce462be901f004ca977Srv.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\LowRegistry\DOMStorage	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\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	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
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\IETld\LowMic	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\Zoom	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no"	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\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
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\Main	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\LowRegistry	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{626D4351-6D04-11ED-A955-CA7A4AEEC1E8} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\InternetRegistry	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\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\PageSetup	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\Recovery\PendingRecovery	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 = "376175090"	iexplore.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1812	DesktopLayer.exe
1812	DesktopLayer.exe
1812	DesktopLayer.exe
1812	DesktopLayer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
112	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
112	iexplore.exe
112	iexplore.exe
1500	IEXPLORE.EXE
1500	IEXPLORE.EXE
1500	IEXPLORE.EXE
1500	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 564 wrote to memory of 1732	564	f4e720886d7e57471754831478e62bf5961593847b0f5ce462be901f004ca977.exe	28
PID 564 wrote to memory of 1732	564	f4e720886d7e57471754831478e62bf5961593847b0f5ce462be901f004ca977.exe	28
PID 564 wrote to memory of 1732	564	f4e720886d7e57471754831478e62bf5961593847b0f5ce462be901f004ca977.exe	28
PID 564 wrote to memory of 1732	564	f4e720886d7e57471754831478e62bf5961593847b0f5ce462be901f004ca977.exe	28
PID 1732 wrote to memory of 1812	1732	f4e720886d7e57471754831478e62bf5961593847b0f5ce462be901f004ca977Srv.exe	29
PID 1732 wrote to memory of 1812	1732	f4e720886d7e57471754831478e62bf5961593847b0f5ce462be901f004ca977Srv.exe	29
PID 1732 wrote to memory of 1812	1732	f4e720886d7e57471754831478e62bf5961593847b0f5ce462be901f004ca977Srv.exe	29
PID 1732 wrote to memory of 1812	1732	f4e720886d7e57471754831478e62bf5961593847b0f5ce462be901f004ca977Srv.exe	29
PID 1812 wrote to memory of 112	1812	DesktopLayer.exe	30
PID 1812 wrote to memory of 112	1812	DesktopLayer.exe	30
PID 1812 wrote to memory of 112	1812	DesktopLayer.exe	30
PID 1812 wrote to memory of 112	1812	DesktopLayer.exe	30
PID 112 wrote to memory of 1500	112	iexplore.exe	32
PID 112 wrote to memory of 1500	112	iexplore.exe	32
PID 112 wrote to memory of 1500	112	iexplore.exe	32
PID 112 wrote to memory of 1500	112	iexplore.exe	32

C:\Users\Admin\AppData\Local\Temp\f4e720886d7e57471754831478e62bf5961593847b0f5ce462be901f004ca977.exe
"C:\Users\Admin\AppData\Local\Temp\f4e720886d7e57471754831478e62bf5961593847b0f5ce462be901f004ca977.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:564
- C:\Users\Admin\AppData\Local\Temp\f4e720886d7e57471754831478e62bf5961593847b0f5ce462be901f004ca977Srv.exe
  C:\Users\Admin\AppData\Local\Temp\f4e720886d7e57471754831478e62bf5961593847b0f5ce462be901f004ca977Srv.exe
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in Program Files directory
  - Suspicious use of WriteProcessMemory
  PID:1732
- - 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:1812
  - - 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:112
    - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:112 CREDAT:275457 /prefetch:2
        5⤵
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:1500

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\f4e720886d7e57471754831478e62bf5961593847b0f5ce462be901f004ca977Srv.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
C:\Users\Admin\AppData\Local\Temp\f4e720886d7e57471754831478e62bf5961593847b0f5ce462be901f004ca977Srv.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\GKSP84FF.txt

Filesize
608B

MD5
04f45973bc020b93b10e1c589fc56241

SHA1
11598bb492c325190921b53bb89133264fe54531

SHA256
19b8841da9aa1db170ca4221072c4143293cca1ed020141da6c6c812cb6e9fc4

SHA512
78df36c0e8e9531a4723715e606f6b71c73214513a714da3d36bcb8e8bbd3d9cceef575c51a42b9dbcd49929f150e8bb809252094abb3c98d542a936de44c56b

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\f4e720886d7e57471754831478e62bf5961593847b0f5ce462be901f004ca977Srv.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
\Users\Admin\AppData\Local\Temp\nstA1EC.tmp\ButtonLinker.dll

Filesize
7KB

MD5
dd85ac7d85c92dd0e3cc17dfd4890f54

SHA1
a128fb7a05965c1a9913c6f5e419e6c4c0a7d2fa

SHA256
27abd2a4fb1bf66add60221b52d061bbe24d2d21e13600725ff7a5c6c777b504

SHA512
e4ff8216c65110a9d156f37c2062acb53a72daa8af12dfc24278920d9e1a4083a81b1446759df75405b2da34c7bfb1afc33184feedd0aee4ed73f79fcbb1a8a1

Download Submit
\Users\Admin\AppData\Local\Temp\nstA1EC.tmp\System.dll

Filesize
67KB

MD5
8fef2ddc02a88527acf5f875aa79590a

SHA1
b3ebe53a0037789c155992eee0547de1a76712b9

SHA256
5b06944f0b948937d87a68d0d584f8de8f169298f5db95336f55696079e88d50

SHA512
7f231356313b7aa4882bfd205529d65022397c91a5aab3658d655524aa3bfe855432ac35cd455f8750530e1b9582e71c710abb94d610ff1ec3e13d5a193d19de

Download Submit
\Users\Admin\AppData\Local\Temp\nstA1EC.tmp\System.dll

Filesize
67KB

MD5
8fef2ddc02a88527acf5f875aa79590a

SHA1
b3ebe53a0037789c155992eee0547de1a76712b9

SHA256
5b06944f0b948937d87a68d0d584f8de8f169298f5db95336f55696079e88d50

SHA512
7f231356313b7aa4882bfd205529d65022397c91a5aab3658d655524aa3bfe855432ac35cd455f8750530e1b9582e71c710abb94d610ff1ec3e13d5a193d19de

Download Submit
memory/564-54-0x0000000075D01000-0x0000000075D03000-memory.dmp

Filesize
8KB

Download
memory/564-73-0x0000000000340000-0x000000000036E000-memory.dmp

Filesize
184KB

Download
memory/564-70-0x0000000000340000-0x000000000036E000-memory.dmp

Filesize
184KB

Download
memory/564-69-0x0000000010000000-0x0000000010015000-memory.dmp

Filesize
84KB

Download
memory/564-72-0x0000000010000000-0x0000000010015000-memory.dmp

Filesize
84KB

Download
memory/1732-65-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1812-68-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download