chaos | c277a8fe3f35b51cb210db9bd9d4215fb05e694cd15b46d2a0aa1f094738c163

Analysis

max time kernel
117s
max time network
118s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
27-10-2024 20:24

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General

Target

2024-10-27_9e7f8bbc8b012b6a9125d72d8872c1b9_wannacry.exe
Size

854KB
MD5

9e7f8bbc8b012b6a9125d72d8872c1b9
SHA1

71ffa7a408554eed422aa044613f100eafc78c57
SHA256

c277a8fe3f35b51cb210db9bd9d4215fb05e694cd15b46d2a0aa1f094738c163
SHA512

9fff0dbbe1492adf2b1b6c3d707861ed629f1e24490abc6893559903fb019ac620142bd60de33a39f41a9d735064e1fae421defc0dc6bc7973ee28987709ba80
SSDEEP

12288:b0zVvgDNMoWjTmFzAzBocaKjyWtiR1pptHxQ0z2GjShqL:o5vgHWjTwAlocaKjyyItHDzH

Score

10^/10

chaos discovery ransomware

Malware Config

Signatures

Chaos
Ransomware family first seen in June 2021.
ransomware chaos

Chaos Ransomware 2 IoCs

resource	yara_rule
behavioral1/files/0x0007000000012118-5.dat	family_chaos
behavioral1/memory/2664-16-0x00000000011A0000-0x00000000011B0000-memory.dmp	family_chaos

Chaos family
chaos

Executes dropped EXE 3 IoCs

pid	Process
2664	Virus1.exe
2740	Bootstrapper.exe
1196	Process not Found

Loads dropped DLL 7 IoCs

pid	Process
2980	2024-10-27_9e7f8bbc8b012b6a9125d72d8872c1b9_wannacry.exe
2980	2024-10-27_9e7f8bbc8b012b6a9125d72d8872c1b9_wannacry.exe
1492	WerFault.exe
1492	WerFault.exe
1492	WerFault.exe
1492	WerFault.exe
1492	WerFault.exe

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 1 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	2024-10-27_9e7f8bbc8b012b6a9125d72d8872c1b9_wannacry.exe

Gathers network information 2 TTPs 1 IoCs

Uses commandline utility to view network configuration.

System Information Discovery

T1082

Command and Scripting Interpreter

T1059

pid	Process
2644	ipconfig.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2664	Virus1.exe
2664	Virus1.exe
2664	Virus1.exe

Suspicious use of AdjustPrivilegeToken 42 IoCs

description	pid	Process
Token: SeDebugPrivilege	2664	Virus1.exe
Token: SeIncreaseQuotaPrivilege	704	WMIC.exe
Token: SeSecurityPrivilege	704	WMIC.exe
Token: SeTakeOwnershipPrivilege	704	WMIC.exe
Token: SeLoadDriverPrivilege	704	WMIC.exe
Token: SeSystemProfilePrivilege	704	WMIC.exe
Token: SeSystemtimePrivilege	704	WMIC.exe
Token: SeProfSingleProcessPrivilege	704	WMIC.exe
Token: SeIncBasePriorityPrivilege	704	WMIC.exe
Token: SeCreatePagefilePrivilege	704	WMIC.exe
Token: SeBackupPrivilege	704	WMIC.exe
Token: SeRestorePrivilege	704	WMIC.exe
Token: SeShutdownPrivilege	704	WMIC.exe
Token: SeDebugPrivilege	704	WMIC.exe
Token: SeSystemEnvironmentPrivilege	704	WMIC.exe
Token: SeRemoteShutdownPrivilege	704	WMIC.exe
Token: SeUndockPrivilege	704	WMIC.exe
Token: SeManageVolumePrivilege	704	WMIC.exe
Token: 33	704	WMIC.exe
Token: 34	704	WMIC.exe
Token: 35	704	WMIC.exe
Token: SeIncreaseQuotaPrivilege	704	WMIC.exe
Token: SeSecurityPrivilege	704	WMIC.exe
Token: SeTakeOwnershipPrivilege	704	WMIC.exe
Token: SeLoadDriverPrivilege	704	WMIC.exe
Token: SeSystemProfilePrivilege	704	WMIC.exe
Token: SeSystemtimePrivilege	704	WMIC.exe
Token: SeProfSingleProcessPrivilege	704	WMIC.exe
Token: SeIncBasePriorityPrivilege	704	WMIC.exe
Token: SeCreatePagefilePrivilege	704	WMIC.exe
Token: SeBackupPrivilege	704	WMIC.exe
Token: SeRestorePrivilege	704	WMIC.exe
Token: SeShutdownPrivilege	704	WMIC.exe
Token: SeDebugPrivilege	704	WMIC.exe
Token: SeSystemEnvironmentPrivilege	704	WMIC.exe
Token: SeRemoteShutdownPrivilege	704	WMIC.exe
Token: SeUndockPrivilege	704	WMIC.exe
Token: SeManageVolumePrivilege	704	WMIC.exe
Token: 33	704	WMIC.exe
Token: 34	704	WMIC.exe
Token: 35	704	WMIC.exe
Token: SeDebugPrivilege	2740	Bootstrapper.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 2980 wrote to memory of 2664	2980	2024-10-27_9e7f8bbc8b012b6a9125d72d8872c1b9_wannacry.exe	30
PID 2980 wrote to memory of 2664	2980	2024-10-27_9e7f8bbc8b012b6a9125d72d8872c1b9_wannacry.exe	30
PID 2980 wrote to memory of 2664	2980	2024-10-27_9e7f8bbc8b012b6a9125d72d8872c1b9_wannacry.exe	30
PID 2980 wrote to memory of 2664	2980	2024-10-27_9e7f8bbc8b012b6a9125d72d8872c1b9_wannacry.exe	30
PID 2980 wrote to memory of 2740	2980	2024-10-27_9e7f8bbc8b012b6a9125d72d8872c1b9_wannacry.exe	31
PID 2980 wrote to memory of 2740	2980	2024-10-27_9e7f8bbc8b012b6a9125d72d8872c1b9_wannacry.exe	31
PID 2980 wrote to memory of 2740	2980	2024-10-27_9e7f8bbc8b012b6a9125d72d8872c1b9_wannacry.exe	31
PID 2980 wrote to memory of 2740	2980	2024-10-27_9e7f8bbc8b012b6a9125d72d8872c1b9_wannacry.exe	31
PID 2740 wrote to memory of 2608	2740	Bootstrapper.exe	33
PID 2740 wrote to memory of 2608	2740	Bootstrapper.exe	33
PID 2740 wrote to memory of 2608	2740	Bootstrapper.exe	33
PID 2664 wrote to memory of 2532	2664	Virus1.exe	34
PID 2664 wrote to memory of 2532	2664	Virus1.exe	34
PID 2664 wrote to memory of 2532	2664	Virus1.exe	34
PID 2608 wrote to memory of 2644	2608	cmd.exe	36
PID 2608 wrote to memory of 2644	2608	cmd.exe	36
PID 2608 wrote to memory of 2644	2608	cmd.exe	36
PID 2740 wrote to memory of 2228	2740	Bootstrapper.exe	37
PID 2740 wrote to memory of 2228	2740	Bootstrapper.exe	37
PID 2740 wrote to memory of 2228	2740	Bootstrapper.exe	37
PID 2228 wrote to memory of 704	2228	cmd.exe	39
PID 2228 wrote to memory of 704	2228	cmd.exe	39
PID 2228 wrote to memory of 704	2228	cmd.exe	39
PID 2740 wrote to memory of 1492	2740	Bootstrapper.exe	41
PID 2740 wrote to memory of 1492	2740	Bootstrapper.exe	41
PID 2740 wrote to memory of 1492	2740	Bootstrapper.exe	41

C:\Users\Admin\AppData\Local\Temp\2024-10-27_9e7f8bbc8b012b6a9125d72d8872c1b9_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-27_9e7f8bbc8b012b6a9125d72d8872c1b9_wannacry.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2980
- C:\Users\Admin\AppData\Roaming\Virus1.exe
  "C:\Users\Admin\AppData\Roaming\Virus1.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2664
- - C:\Windows\system32\WerFault.exe
    C:\Windows\system32\WerFault.exe -u -p 2664 -s 568
    3⤵
    PID:2532
- C:\Users\Admin\AppData\Roaming\Bootstrapper.exe
  "C:\Users\Admin\AppData\Roaming\Bootstrapper.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2740
- - C:\Windows\system32\cmd.exe
    "cmd" /c ipconfig /all
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2608
  - - C:\Windows\system32\ipconfig.exe
      ipconfig /all
      4⤵
      Gathers network information
      PID:2644
- - C:\Windows\system32\cmd.exe
    "cmd" /c wmic nicconfig where (IPEnabled=TRUE) call SetDNSServerSearchOrder ("1.1.1.1", "1.0.0.1")
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2228
  - - C:\Windows\System32\Wbem\WMIC.exe
      wmic nicconfig where (IPEnabled=TRUE) call SetDNSServerSearchOrder ("1.1.1.1", "1.0.0.1")
      4⤵
      Suspicious use of AdjustPrivilegeToken
      PID:704
- - C:\Windows\system32\WerFault.exe
    C:\Windows\system32\WerFault.exe -u -p 2740 -s 1124
    3⤵
    - Loads dropped DLL
    PID:1492

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

\Users\Admin\AppData\Roaming\Bootstrapper.exe

Filesize
800KB

MD5
2a4dcf20b82896be94eb538260c5fb93

SHA1
21f232c2fd8132f8677e53258562ad98b455e679

SHA256
ebbcb489171abfcfce56554dbaeacd22a15838391cbc7c756db02995129def5a

SHA512
4f1164b2312fb94b7030d6eb6aa9f3502912ffa33505f156443570fc964bfd3bb21ded3cf84092054e07346d2dce83a0907ba33f4ba39ad3fe7a78e836efe288

Download Submit
\Users\Admin\AppData\Roaming\Virus1.exe

Filesize
42KB

MD5
9fd5152a920afc01a494f84d97af7b8c

SHA1
058646770a0ca82417f240a068464e712c11a1b9

SHA256
6f0f20da34396166df352bf301b3c59ef42b0bc67f52af3d541b0161c47ede05

SHA512
3bc11f2d30877590f108866186a0dbc4d36a773b036382df7b5129637e81c70f18469526ef2129a02e36179075a58f93e7e0040fd35c8c0d88511b77998d53b6

Download Submit
memory/2664-16-0x00000000011A0000-0x00000000011B0000-memory.dmp

Filesize
64KB

Download
memory/2740-17-0x0000000001120000-0x00000000011EE000-memory.dmp

Filesize
824KB

Download
memory/2980-0-0x0000000074051000-0x0000000074052000-memory.dmp

Filesize
4KB

Download
memory/2980-2-0x0000000074050000-0x00000000745FB000-memory.dmp

Filesize
5.7MB

Download
memory/2980-3-0x0000000074050000-0x00000000745FB000-memory.dmp

Filesize
5.7MB

Download
memory/2980-15-0x0000000074050000-0x00000000745FB000-memory.dmp

Filesize
5.7MB

Download