ramnit | a142af42dce4dd20008229039f08037ba558c721cd637f2e3d6e2122aab29b08

Analysis

max time kernel
95s
max time network
112s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
19-09-2024 07:00

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General

Target

a142af42dce4dd20008229039f08037ba558c721cd637f2e3d6e2122aab29b08N.exe
Size

256KB
MD5

15127d4cd5bf2f8bde1075f2aa720350
SHA1

e231623c005956fee50c2adf9be2f56b93089185
SHA256

a142af42dce4dd20008229039f08037ba558c721cd637f2e3d6e2122aab29b08
SHA512

ebd4e35a2aafc7477a851c7e940ebe30dce73ec77458bdfd9331d686721925a59c3f5d50a866b08f7c4309c71d93f58e3550b04e3438af713f614433a0010be7
SSDEEP

6144:14C9QS6kCziOuAOuAOuAOuAOuAOuAOuAOuAOu4wwwwwwwwppNNgnmCiPD5:1KjwwwwwwwwpXOn3iPD

Score

10^/10

ramnit banker discovery 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
4828	a142af42dce4dd20008229039f08037ba558c721cd637f2e3d6e2122aab29b08NSrv.exe
4636	DesktopLayer.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000900000002346a-3.dat	upx
behavioral2/memory/4828-4-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/4828-6-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/4636-33-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/4636-34-0x0000000000400000-0x000000000042E000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\pxB352.tmp	a142af42dce4dd20008229039f08037ba558c721cd637f2e3d6e2122aab29b08NSrv.exe
File created	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	a142af42dce4dd20008229039f08037ba558c721cd637f2e3d6e2122aab29b08NSrv.exe
File opened for modification	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	a142af42dce4dd20008229039f08037ba558c721cd637f2e3d6e2122aab29b08NSrv.exe

System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	IEXPLORE.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a142af42dce4dd20008229039f08037ba558c721cd637f2e3d6e2122aab29b08N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a142af42dce4dd20008229039f08037ba558c721cd637f2e3d6e2122aab29b08NSrv.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	DesktopLayer.exe

Modifies Internet Explorer settings 1 TTPs 30 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31132257"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31132257"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "2722100981"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "433494182"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "2726163376"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31132257"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{CDE25723-7654-11EF-939B-42C951A4D69F} = "0"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000\SOFTWARE\Microsoft\Internet Explorer\GPU\AdapterInfo = "vendorId=\"0x10de\",deviceID=\"0x8c\",subSysID=\"0x0\",revision=\"0x0\",version=\"10.0.19041.546\"hypervisor=\"No Hypervisor (No SLAT)\""	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "2722100981"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
4636	DesktopLayer.exe
4636	DesktopLayer.exe
4636	DesktopLayer.exe
4636	DesktopLayer.exe
4636	DesktopLayer.exe
4636	DesktopLayer.exe
4636	DesktopLayer.exe
4636	DesktopLayer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4476	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
4476	iexplore.exe
4476	iexplore.exe
4876	IEXPLORE.EXE
4876	IEXPLORE.EXE
4876	IEXPLORE.EXE
4876	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 4032 wrote to memory of 4828	4032	a142af42dce4dd20008229039f08037ba558c721cd637f2e3d6e2122aab29b08N.exe	82
PID 4032 wrote to memory of 4828	4032	a142af42dce4dd20008229039f08037ba558c721cd637f2e3d6e2122aab29b08N.exe	82
PID 4032 wrote to memory of 4828	4032	a142af42dce4dd20008229039f08037ba558c721cd637f2e3d6e2122aab29b08N.exe	82
PID 4828 wrote to memory of 4636	4828	a142af42dce4dd20008229039f08037ba558c721cd637f2e3d6e2122aab29b08NSrv.exe	83
PID 4828 wrote to memory of 4636	4828	a142af42dce4dd20008229039f08037ba558c721cd637f2e3d6e2122aab29b08NSrv.exe	83
PID 4828 wrote to memory of 4636	4828	a142af42dce4dd20008229039f08037ba558c721cd637f2e3d6e2122aab29b08NSrv.exe	83
PID 4636 wrote to memory of 4476	4636	DesktopLayer.exe	84
PID 4636 wrote to memory of 4476	4636	DesktopLayer.exe	84
PID 4476 wrote to memory of 4876	4476	iexplore.exe	85
PID 4476 wrote to memory of 4876	4476	iexplore.exe	85
PID 4476 wrote to memory of 4876	4476	iexplore.exe	85

C:\Users\Admin\AppData\Local\Temp\a142af42dce4dd20008229039f08037ba558c721cd637f2e3d6e2122aab29b08N.exe
"C:\Users\Admin\AppData\Local\Temp\a142af42dce4dd20008229039f08037ba558c721cd637f2e3d6e2122aab29b08N.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4032
- C:\Users\Admin\AppData\Local\Temp\a142af42dce4dd20008229039f08037ba558c721cd637f2e3d6e2122aab29b08NSrv.exe
  C:\Users\Admin\AppData\Local\Temp\a142af42dce4dd20008229039f08037ba558c721cd637f2e3d6e2122aab29b08NSrv.exe
  2⤵
  - Executes dropped EXE
  - Drops file in Program Files directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4828
- - C:\Program Files (x86)\Microsoft\DesktopLayer.exe
    "C:\Program Files (x86)\Microsoft\DesktopLayer.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:4636
  - - 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:4476
    - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4476 CREDAT:17410 /prefetch:2
        5⤵
        System Location Discovery: System Language Discovery
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:4876

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

Filesize
471B

MD5
33bac9325241193616461afd5a0deb0c

SHA1
e78ed72996568bc9616f4d6b20403749252b4859

SHA256
cb0b78d15b774b91ab6f6ef315a14f301b85b40122a72622818753212538f5b7

SHA512
3054cbd1551e36a747fc4c7086d3cc484530ea13d44279b4f5f92d462d91d7e3322bb240edeedd517751c00949a6264b50322464e446290726fde18ac4eb2e2e

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

Filesize
404B

MD5
703b067d8a57a93d95bce2a79e1339ad

SHA1
ada83b3101fc8ce7888465a95f2c40c3d296c19f

SHA256
9a4c61216595c95cd2df6c17713f6f4aae12da9e101481d85073be5bac46200a

SHA512
01e914c6555519efb91541f7e46ca592adcb5ba92000aef7841641f6e2ed5b14564b52c316b9d8182799707fcb9218f22d03eb1d1349886aea5ebaaad7b9ce17

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\T1CTRFUW\suggestions[1].en-US

Filesize
17KB

MD5
5a34cb996293fde2cb7a4ac89587393a

SHA1
3c96c993500690d1a77873cd62bc639b3a10653f

SHA256
c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

SHA512
e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

Download Submit
C:\Users\Admin\AppData\Local\Temp\SearchSetup.log

Filesize
1KB

MD5
1c11a58a501399d3b1330f9f4d23e4dd

SHA1
e43ee4b36df4d17e3a09d5e60c80319224bc6b57

SHA256
ac577bc64c4a4f68972b8721dd947575982e08239b010a42af94adc8d184b820

SHA512
1125fdde7884d802a85aa4a8e8302e369f052e6bab85086dc6fe63913039a772a50a5bc0927f30dc7f0167e8fcc3717bd293fd1617faaeefd9a56f127bb3e749

Download Submit
C:\Users\Admin\AppData\Local\Temp\a142af42dce4dd20008229039f08037ba558c721cd637f2e3d6e2122aab29b08NSrv.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
memory/4032-31-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/4032-0-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/4636-33-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/4636-34-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/4636-32-0x00000000006B0000-0x00000000006B1000-memory.dmp

Filesize
4KB

Download
memory/4828-6-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/4828-5-0x0000000000480000-0x000000000048F000-memory.dmp

Filesize
60KB

Download
memory/4828-4-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download