ramnit | e5791bea66a5cc81d190f572362b58a0602377f0c5f74fc6cedc40ea8a0eaf6d

Analysis

max time kernel
91s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
25/11/2022, 12:57

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General

Target

e5791bea66a5cc81d190f572362b58a0602377f0c5f74fc6cedc40ea8a0eaf6d.exe
Size

1.8MB
MD5

777a2aa3f7c7c9783b4e5e6cfa9d41c3
SHA1

64b9b059ddd9188c2454a3cbc6a35ed08ba89507
SHA256

e5791bea66a5cc81d190f572362b58a0602377f0c5f74fc6cedc40ea8a0eaf6d
SHA512

e8aa266abd532a9a49734f8116c9c732bad9794908f26c0126c2270049cc990120c6dd2061320366d4ada079452348cd4a2bdac06359acdbeb784f93d8ddb817
SSDEEP

49152:2UyfyD2phLtaAGcoaNKIayOzRkDKm4PeDo8JhJGDQ:WDLQA8AONke7SVzJQQ

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
4940	e5791bea66a5cc81d190f572362b58a0602377f0c5f74fc6cedc40ea8a0eaf6dSrv.exe
4736	DesktopLayer.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x0006000000022f5b-135.dat	upx
behavioral2/files/0x0006000000022f5b-136.dat	upx
behavioral2/memory/4940-138-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/files/0x0007000000022f5d-141.dat	upx
behavioral2/files/0x0007000000022f5d-142.dat	upx
behavioral2/memory/4736-143-0x0000000000400000-0x000000000042E000-memory.dmp	upx

Loads dropped DLL 4 IoCs

pid	Process
5056	e5791bea66a5cc81d190f572362b58a0602377f0c5f74fc6cedc40ea8a0eaf6d.exe
5056	e5791bea66a5cc81d190f572362b58a0602377f0c5f74fc6cedc40ea8a0eaf6d.exe
5056	e5791bea66a5cc81d190f572362b58a0602377f0c5f74fc6cedc40ea8a0eaf6d.exe
5056	e5791bea66a5cc81d190f572362b58a0602377f0c5f74fc6cedc40ea8a0eaf6d.exe

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	e5791bea66a5cc81d190f572362b58a0602377f0c5f74fc6cedc40ea8a0eaf6dSrv.exe
File opened for modification	C:\Program Files (x86)\Microsoft\px1B77.tmp	e5791bea66a5cc81d190f572362b58a0602377f0c5f74fc6cedc40ea8a0eaf6dSrv.exe
File created	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	e5791bea66a5cc81d190f572362b58a0602377f0c5f74fc6cedc40ea8a0eaf6dSrv.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 28 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "858954625"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "924579928"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "858954625"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "30998801"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{5E3EC98B-6D04-11ED-AECB-5ECC372795C7} = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "30998801"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "376175083"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "30998801"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
4736	DesktopLayer.exe
4736	DesktopLayer.exe
4736	DesktopLayer.exe
4736	DesktopLayer.exe
4736	DesktopLayer.exe
4736	DesktopLayer.exe
4736	DesktopLayer.exe
4736	DesktopLayer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2068	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
2068	iexplore.exe
2068	iexplore.exe
1968	IEXPLORE.EXE
1968	IEXPLORE.EXE
1968	IEXPLORE.EXE
1968	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 5056 wrote to memory of 4940	5056	e5791bea66a5cc81d190f572362b58a0602377f0c5f74fc6cedc40ea8a0eaf6d.exe	81
PID 5056 wrote to memory of 4940	5056	e5791bea66a5cc81d190f572362b58a0602377f0c5f74fc6cedc40ea8a0eaf6d.exe	81
PID 5056 wrote to memory of 4940	5056	e5791bea66a5cc81d190f572362b58a0602377f0c5f74fc6cedc40ea8a0eaf6d.exe	81
PID 4940 wrote to memory of 4736	4940	e5791bea66a5cc81d190f572362b58a0602377f0c5f74fc6cedc40ea8a0eaf6dSrv.exe	82
PID 4940 wrote to memory of 4736	4940	e5791bea66a5cc81d190f572362b58a0602377f0c5f74fc6cedc40ea8a0eaf6dSrv.exe	82
PID 4940 wrote to memory of 4736	4940	e5791bea66a5cc81d190f572362b58a0602377f0c5f74fc6cedc40ea8a0eaf6dSrv.exe	82
PID 4736 wrote to memory of 2068	4736	DesktopLayer.exe	83
PID 4736 wrote to memory of 2068	4736	DesktopLayer.exe	83
PID 2068 wrote to memory of 1968	2068	iexplore.exe	84
PID 2068 wrote to memory of 1968	2068	iexplore.exe	84
PID 2068 wrote to memory of 1968	2068	iexplore.exe	84

C:\Users\Admin\AppData\Local\Temp\e5791bea66a5cc81d190f572362b58a0602377f0c5f74fc6cedc40ea8a0eaf6d.exe
"C:\Users\Admin\AppData\Local\Temp\e5791bea66a5cc81d190f572362b58a0602377f0c5f74fc6cedc40ea8a0eaf6d.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:5056
- C:\Users\Admin\AppData\Local\Temp\e5791bea66a5cc81d190f572362b58a0602377f0c5f74fc6cedc40ea8a0eaf6dSrv.exe
  C:\Users\Admin\AppData\Local\Temp\e5791bea66a5cc81d190f572362b58a0602377f0c5f74fc6cedc40ea8a0eaf6dSrv.exe
  2⤵
  - Executes dropped EXE
  - Drops file in Program Files directory
  - Suspicious use of WriteProcessMemory
  PID:4940
- - 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:4736
  - - 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:2068
    - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2068 CREDAT:17410 /prefetch:2
        5⤵
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:1968

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\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

Filesize
471B

MD5
a42abb21be3940a88a73771b18ed0f35

SHA1
de12f2f619852ef135ee726614c43c2033ec5743

SHA256
edaf1fb1f6ca2a0caf5f4d85b3f13507bd5df4971fa9ea8a6e08c1227f1ec667

SHA512
c1f775deb2bcb2e0c48ed74dec1cd95f34690ca16d6465175d52d60ae45e746201cc608a58b6f8f080b7e6a7893993b61093c7d9ff63fa735ebaba61ddd0ebf7

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

Filesize
404B

MD5
26a1e863fc377678ad61e4dad8900a54

SHA1
b6d32e1079d55c7af391988d2f095536f3641ebb

SHA256
13d61562694901ce5d11f8d0683a17d7cb4bdd77457ebccabb32bd5f29c9cae6

SHA512
bd6072e142302b5ee42098c993ee07801f20ac31805eab57de2c6acc1df7d747f2082e9787e9da03dbb7b01a5a42a8c292ca342afca64ec5e0f9dfc9c59e13fc

Download Submit
C:\Users\Admin\AppData\Local\Temp\e5791bea66a5cc81d190f572362b58a0602377f0c5f74fc6cedc40ea8a0eaf6dSrv.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
C:\Users\Admin\AppData\Local\Temp\e5791bea66a5cc81d190f572362b58a0602377f0c5f74fc6cedc40ea8a0eaf6dSrv.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsc1A4F.tmp\ButtonLinker.dll

Filesize
7KB

MD5
dd85ac7d85c92dd0e3cc17dfd4890f54

SHA1
a128fb7a05965c1a9913c6f5e419e6c4c0a7d2fa

SHA256
27abd2a4fb1bf66add60221b52d061bbe24d2d21e13600725ff7a5c6c777b504

SHA512
e4ff8216c65110a9d156f37c2062acb53a72daa8af12dfc24278920d9e1a4083a81b1446759df75405b2da34c7bfb1afc33184feedd0aee4ed73f79fcbb1a8a1

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsc1A4F.tmp\ButtonLinker.dll

Filesize
7KB

MD5
dd85ac7d85c92dd0e3cc17dfd4890f54

SHA1
a128fb7a05965c1a9913c6f5e419e6c4c0a7d2fa

SHA256
27abd2a4fb1bf66add60221b52d061bbe24d2d21e13600725ff7a5c6c777b504

SHA512
e4ff8216c65110a9d156f37c2062acb53a72daa8af12dfc24278920d9e1a4083a81b1446759df75405b2da34c7bfb1afc33184feedd0aee4ed73f79fcbb1a8a1

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsc1A4F.tmp\System.dll

Filesize
67KB

MD5
8fef2ddc02a88527acf5f875aa79590a

SHA1
b3ebe53a0037789c155992eee0547de1a76712b9

SHA256
5b06944f0b948937d87a68d0d584f8de8f169298f5db95336f55696079e88d50

SHA512
7f231356313b7aa4882bfd205529d65022397c91a5aab3658d655524aa3bfe855432ac35cd455f8750530e1b9582e71c710abb94d610ff1ec3e13d5a193d19de

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsc1A4F.tmp\System.dll

Filesize
67KB

MD5
8fef2ddc02a88527acf5f875aa79590a

SHA1
b3ebe53a0037789c155992eee0547de1a76712b9

SHA256
5b06944f0b948937d87a68d0d584f8de8f169298f5db95336f55696079e88d50

SHA512
7f231356313b7aa4882bfd205529d65022397c91a5aab3658d655524aa3bfe855432ac35cd455f8750530e1b9582e71c710abb94d610ff1ec3e13d5a193d19de

Download Submit
memory/4736-143-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/4940-139-0x0000000000470000-0x000000000047F000-memory.dmp

Filesize
60KB

Download
memory/4940-138-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/5056-137-0x0000000010000000-0x0000000010015000-memory.dmp

Filesize
84KB

Download
memory/5056-146-0x0000000010000000-0x0000000010015000-memory.dmp

Filesize
84KB

Download