ramnit | fd6f6c2896427b264e90f8373aa3031d4bf1765cbd37d444a65e8f938967609d

Analysis

max time kernel
142s
max time network
220s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
23-11-2022 21:23

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General

Target

fd6f6c2896427b264e90f8373aa3031d4bf1765cbd37d444a65e8f938967609d.exe
Size

17.0MB
MD5

d2fcc3752a73ad941a2e8e7c11d6965b
SHA1

a2260c2496313b097319ea50badd53be639d2e1f
SHA256

fd6f6c2896427b264e90f8373aa3031d4bf1765cbd37d444a65e8f938967609d
SHA512

289167542d976b9cfe3238f6bd1cfc5d5fb7042e2b3b6a4af5ead6e63c69bc607a2224d3fce5296392d7c8d74a28f5f46899c15b571e016a9ab9412e95da368c
SSDEEP

393216:0z3YQz2old4BKT9JoLyTjcz4jt5JZC7tPsI7GHVJ7Vd9gFa:q3YQztb6o+8jC4jt5nC6HVJiFa

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

Processes:

fd6f6c2896427b264e90f8373aa3031d4bf1765cbd37d444a65e8f938967609dSrv.exeDesktopLayer.exe

pid process

320 fd6f6c2896427b264e90f8373aa3031d4bf1765cbd37d444a65e8f938967609dSrv.exe
572 DesktopLayer.exe

pid	process
320	fd6f6c2896427b264e90f8373aa3031d4bf1765cbd37d444a65e8f938967609dSrv.exe
572	DesktopLayer.exe

UPX packed file 8 IoCs

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

upx

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\fd6f6c2896427b264e90f8373aa3031d4bf1765cbd37d444a65e8f938967609dSrv.exe	upx
\Users\Admin\AppData\Local\Temp\fd6f6c2896427b264e90f8373aa3031d4bf1765cbd37d444a65e8f938967609dSrv.exe	upx
C:\Users\Admin\AppData\Local\Temp\fd6f6c2896427b264e90f8373aa3031d4bf1765cbd37d444a65e8f938967609dSrv.exe	upx
\Program Files (x86)\Microsoft\DesktopLayer.exe	upx
C:\Program Files (x86)\Microsoft\DesktopLayer.exe	upx
behavioral1/memory/320-64-0x0000000000400000-0x000000000042E000-memory.dmp	upx
C:\Program Files (x86)\Microsoft\DesktopLayer.exe	upx
behavioral1/memory/572-68-0x0000000000400000-0x000000000042E000-memory.dmp	upx

Loads dropped DLL 5 IoCs

Processes:

fd6f6c2896427b264e90f8373aa3031d4bf1765cbd37d444a65e8f938967609d.exefd6f6c2896427b264e90f8373aa3031d4bf1765cbd37d444a65e8f938967609dSrv.exe

pid	process
856	fd6f6c2896427b264e90f8373aa3031d4bf1765cbd37d444a65e8f938967609d.exe
856	fd6f6c2896427b264e90f8373aa3031d4bf1765cbd37d444a65e8f938967609d.exe
856	fd6f6c2896427b264e90f8373aa3031d4bf1765cbd37d444a65e8f938967609d.exe
320	fd6f6c2896427b264e90f8373aa3031d4bf1765cbd37d444a65e8f938967609dSrv.exe
856	fd6f6c2896427b264e90f8373aa3031d4bf1765cbd37d444a65e8f938967609d.exe

Drops file in Program Files directory 3 IoCs

Processes:

fd6f6c2896427b264e90f8373aa3031d4bf1765cbd37d444a65e8f938967609dSrv.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\Microsoft\px38EC.tmp	fd6f6c2896427b264e90f8373aa3031d4bf1765cbd37d444a65e8f938967609dSrv.exe
File created	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	fd6f6c2896427b264e90f8373aa3031d4bf1765cbd37d444a65e8f938967609dSrv.exe
File opened for modification	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	fd6f6c2896427b264e90f8373aa3031d4bf1765cbd37d444a65e8f938967609dSrv.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

Processes:

iexplore.exeIEXPLORE.EXE

description	ioc	process
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\PageSetup	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\IETld\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	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\Main	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\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\DomainSuggestion\FileNames\	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\Zoom	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	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\SearchScopes	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "376018255"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	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\DomainSuggestion	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\LowRegistry	iexplore.exe
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\Recovery\AdminActive\{2F32A7A1-6B97-11ED-8AA1-4ADA2A0CA6C6} = "0"	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\Toolbar	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

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

DesktopLayer.exe

pid process

572 DesktopLayer.exe
572 DesktopLayer.exe
572 DesktopLayer.exe
572 DesktopLayer.exe
Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

iexplore.exe

pid process

828 iexplore.exe
Suspicious use of SetWindowsHookEx 6 IoCs

Processes:

iexplore.exeIEXPLORE.EXE

pid process

828 iexplore.exe
828 iexplore.exe
740 IEXPLORE.EXE
740 IEXPLORE.EXE
740 IEXPLORE.EXE
740 IEXPLORE.EXE

pid	process
572	DesktopLayer.exe
572	DesktopLayer.exe
572	DesktopLayer.exe
572	DesktopLayer.exe

pid	process
828	iexplore.exe

pid	process
828	iexplore.exe
828	iexplore.exe
740	IEXPLORE.EXE
740	IEXPLORE.EXE
740	IEXPLORE.EXE
740	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

fd6f6c2896427b264e90f8373aa3031d4bf1765cbd37d444a65e8f938967609d.exefd6f6c2896427b264e90f8373aa3031d4bf1765cbd37d444a65e8f938967609dSrv.exeDesktopLayer.exeiexplore.exe

description	pid	process	target process
PID 856 wrote to memory of 320	856	fd6f6c2896427b264e90f8373aa3031d4bf1765cbd37d444a65e8f938967609d.exe	fd6f6c2896427b264e90f8373aa3031d4bf1765cbd37d444a65e8f938967609dSrv.exe
PID 856 wrote to memory of 320	856	fd6f6c2896427b264e90f8373aa3031d4bf1765cbd37d444a65e8f938967609d.exe	fd6f6c2896427b264e90f8373aa3031d4bf1765cbd37d444a65e8f938967609dSrv.exe
PID 856 wrote to memory of 320	856	fd6f6c2896427b264e90f8373aa3031d4bf1765cbd37d444a65e8f938967609d.exe	fd6f6c2896427b264e90f8373aa3031d4bf1765cbd37d444a65e8f938967609dSrv.exe
PID 856 wrote to memory of 320	856	fd6f6c2896427b264e90f8373aa3031d4bf1765cbd37d444a65e8f938967609d.exe	fd6f6c2896427b264e90f8373aa3031d4bf1765cbd37d444a65e8f938967609dSrv.exe
PID 320 wrote to memory of 572	320	fd6f6c2896427b264e90f8373aa3031d4bf1765cbd37d444a65e8f938967609dSrv.exe	DesktopLayer.exe
PID 320 wrote to memory of 572	320	fd6f6c2896427b264e90f8373aa3031d4bf1765cbd37d444a65e8f938967609dSrv.exe	DesktopLayer.exe
PID 320 wrote to memory of 572	320	fd6f6c2896427b264e90f8373aa3031d4bf1765cbd37d444a65e8f938967609dSrv.exe	DesktopLayer.exe
PID 320 wrote to memory of 572	320	fd6f6c2896427b264e90f8373aa3031d4bf1765cbd37d444a65e8f938967609dSrv.exe	DesktopLayer.exe
PID 572 wrote to memory of 828	572	DesktopLayer.exe	iexplore.exe
PID 572 wrote to memory of 828	572	DesktopLayer.exe	iexplore.exe
PID 572 wrote to memory of 828	572	DesktopLayer.exe	iexplore.exe
PID 572 wrote to memory of 828	572	DesktopLayer.exe	iexplore.exe
PID 828 wrote to memory of 740	828	iexplore.exe	IEXPLORE.EXE
PID 828 wrote to memory of 740	828	iexplore.exe	IEXPLORE.EXE
PID 828 wrote to memory of 740	828	iexplore.exe	IEXPLORE.EXE
PID 828 wrote to memory of 740	828	iexplore.exe	IEXPLORE.EXE

C:\Users\Admin\AppData\Local\Temp\fd6f6c2896427b264e90f8373aa3031d4bf1765cbd37d444a65e8f938967609d.exe
"C:\Users\Admin\AppData\Local\Temp\fd6f6c2896427b264e90f8373aa3031d4bf1765cbd37d444a65e8f938967609d.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:856

C:\Users\Admin\AppData\Local\Temp\fd6f6c2896427b264e90f8373aa3031d4bf1765cbd37d444a65e8f938967609dSrv.exe
C:\Users\Admin\AppData\Local\Temp\fd6f6c2896427b264e90f8373aa3031d4bf1765cbd37d444a65e8f938967609dSrv.exe
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:320

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:572

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:828

C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:828 CREDAT:275457 /prefetch:2
5⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:740

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\fd6f6c2896427b264e90f8373aa3031d4bf1765cbd37d444a65e8f938967609dSrv.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
C:\Users\Admin\AppData\Local\Temp\fd6f6c2896427b264e90f8373aa3031d4bf1765cbd37d444a65e8f938967609dSrv.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\S4JR40PC.txt

Filesize
601B

MD5
b985b34554a6ed76b7a623b225e67686

SHA1
0d889c349adc5b1b5e8de27117d4bb986f1b1a1e

SHA256
ab354e93d71d7451515451e0b79a76f4d7aa387370c6276030bf41879afe6093

SHA512
1e9f6e5e09580bce770115e56c207d2cf1373172636fd2f9a80a53d94f428303751a6e2b0d8df239ac2ce28b43dbe80d3634541e4f45be19916f791cee5a7da0

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\fd6f6c2896427b264e90f8373aa3031d4bf1765cbd37d444a65e8f938967609dSrv.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
\Users\Admin\AppData\Local\Temp\nst3870.tmp\ButtonLinker.dll

Filesize
7KB

MD5
dd85ac7d85c92dd0e3cc17dfd4890f54

SHA1
a128fb7a05965c1a9913c6f5e419e6c4c0a7d2fa

SHA256
27abd2a4fb1bf66add60221b52d061bbe24d2d21e13600725ff7a5c6c777b504

SHA512
e4ff8216c65110a9d156f37c2062acb53a72daa8af12dfc24278920d9e1a4083a81b1446759df75405b2da34c7bfb1afc33184feedd0aee4ed73f79fcbb1a8a1

Download Submit
\Users\Admin\AppData\Local\Temp\nst3870.tmp\System.dll

Filesize
67KB

MD5
8fef2ddc02a88527acf5f875aa79590a

SHA1
b3ebe53a0037789c155992eee0547de1a76712b9

SHA256
5b06944f0b948937d87a68d0d584f8de8f169298f5db95336f55696079e88d50

SHA512
7f231356313b7aa4882bfd205529d65022397c91a5aab3658d655524aa3bfe855432ac35cd455f8750530e1b9582e71c710abb94d610ff1ec3e13d5a193d19de

Download Submit
\Users\Admin\AppData\Local\Temp\nst3870.tmp\System.dll

Filesize
67KB

MD5
8fef2ddc02a88527acf5f875aa79590a

SHA1
b3ebe53a0037789c155992eee0547de1a76712b9

SHA256
5b06944f0b948937d87a68d0d584f8de8f169298f5db95336f55696079e88d50

SHA512
7f231356313b7aa4882bfd205529d65022397c91a5aab3658d655524aa3bfe855432ac35cd455f8750530e1b9582e71c710abb94d610ff1ec3e13d5a193d19de

Download Submit
memory/320-57-0x0000000000000000-mapping.dmp

Download
memory/320-64-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/572-68-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/572-63-0x0000000000000000-mapping.dmp

Download
memory/856-70-0x0000000010000000-0x0000000010015000-memory.dmp

Filesize
84KB

Download
memory/856-71-0x0000000000530000-0x000000000055E000-memory.dmp

Filesize
184KB

Download
memory/856-72-0x0000000000530000-0x000000000055E000-memory.dmp

Filesize
184KB

Download
memory/856-54-0x0000000075DF1000-0x0000000075DF3000-memory.dmp

Filesize
8KB

Download