gh0strat | 22c8fc9c7ab6759e665a4e9e8bdd2904538ab352038537085f643295b6f33724

General

Target

22c8fc9c7ab6759e665a4e9e8bdd2904538ab352038537085f643295b6f33724.exe
Size

318KB
MD5

78f9918d06e51b5b4e86e241c95bdbc6
SHA1

fd2331b18c165e2771ebd20d83fd671d9a0a6f7d
SHA256

22c8fc9c7ab6759e665a4e9e8bdd2904538ab352038537085f643295b6f33724
SHA512

cd7730cc3de8417303f9b9ff675281f17ab3e36b76a6c5d81f70e822f05c74d15727df96c6d7af7609b9fa9895b5788cebc6df64abaa86b6ffb1cb2801cbaa1a
SSDEEP

6144:ORoSgWbzYds0SfxsTxt3YeWH8k+p+Nj8DmV9Z3+jH:RSfbzc8GrYdcb88Dw+z

Score

10^/10

gh0strat bootkit discovery persistence rat upx

Malware Config

Extracted

Family

gh0strat

C2

host123.zz.am:6658

http://107.163.43.235:12388/

http://107.163.43.236:10289/support.php

Attributes

user_agent
Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.1; Trident/4.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C))

Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.0)

Signatures

Gh0strat
Gh0st RAT is a remote access tool (RAT) with its source code public and it has been used by multiple Chinese groups.
rat gh0strat
Gh0strat family
gh0strat

Deletes itself 1 IoCs

pid	Process
2504	ocaos.exe

Executes dropped EXE 2 IoCs

pid	Process
2504	ocaos.exe
2476	lduuq.exe

Loads dropped DLL 7 IoCs

pid	Process
1860	cmd.exe
1860	cmd.exe
2504	ocaos.exe
2476	lduuq.exe
2476	lduuq.exe
2476	lduuq.exe
2476	lduuq.exe

Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

Bootkits write to the MBR to gain persistence at a level below the operating system.

bootkit persistence

Bootkit

T1542.003

description	ioc	Process
File opened for modification	\??\PHYSICALDRIVE0	lduuq.exe

UPX packed file 9 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2596-0-0x0000000000400000-0x000000000046F000-memory.dmp	upx
behavioral1/memory/2596-2-0x0000000000400000-0x000000000046F000-memory.dmp	upx
behavioral1/files/0x0009000000012117-4.dat	upx
behavioral1/memory/2504-7-0x0000000000400000-0x000000000046F000-memory.dmp	upx
behavioral1/memory/2504-14-0x0000000000400000-0x000000000046F000-memory.dmp	upx
behavioral1/files/0x0009000000015d41-16.dat	upx
behavioral1/memory/2476-18-0x0000000010000000-0x000000001004B000-memory.dmp	upx
behavioral1/memory/2476-23-0x0000000010000000-0x000000001004B000-memory.dmp	upx
behavioral1/memory/2476-24-0x0000000010000000-0x000000001004B000-memory.dmp	upx

Drops file in Program Files directory 4 IoCs

description	ioc	Process
File opened for modification	\??\c:\Program Files\beemunamb	ocaos.exe
File created	\??\c:\Program Files\beemunamb\lduuq.dll	ocaos.exe
File created	\??\c:\Program Files\beemunamb\lduuq.exe	ocaos.exe
File opened for modification	\??\c:\Program Files\beemunamb\lduuq.exe	ocaos.exe

System Location Discovery: System Language Discovery 1 TTPs 5 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	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ocaos.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	lduuq.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	22c8fc9c7ab6759e665a4e9e8bdd2904538ab352038537085f643295b6f33724.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
1860	cmd.exe
2776	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2776	PING.EXE

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2476	lduuq.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2596	22c8fc9c7ab6759e665a4e9e8bdd2904538ab352038537085f643295b6f33724.exe
2504	ocaos.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 2596 wrote to memory of 1860	2596	22c8fc9c7ab6759e665a4e9e8bdd2904538ab352038537085f643295b6f33724.exe	30
PID 2596 wrote to memory of 1860	2596	22c8fc9c7ab6759e665a4e9e8bdd2904538ab352038537085f643295b6f33724.exe	30
PID 2596 wrote to memory of 1860	2596	22c8fc9c7ab6759e665a4e9e8bdd2904538ab352038537085f643295b6f33724.exe	30
PID 2596 wrote to memory of 1860	2596	22c8fc9c7ab6759e665a4e9e8bdd2904538ab352038537085f643295b6f33724.exe	30
PID 1860 wrote to memory of 2776	1860	cmd.exe	32
PID 1860 wrote to memory of 2776	1860	cmd.exe	32
PID 1860 wrote to memory of 2776	1860	cmd.exe	32
PID 1860 wrote to memory of 2776	1860	cmd.exe	32
PID 1860 wrote to memory of 2504	1860	cmd.exe	33
PID 1860 wrote to memory of 2504	1860	cmd.exe	33
PID 1860 wrote to memory of 2504	1860	cmd.exe	33
PID 1860 wrote to memory of 2504	1860	cmd.exe	33
PID 2504 wrote to memory of 2476	2504	ocaos.exe	34
PID 2504 wrote to memory of 2476	2504	ocaos.exe	34
PID 2504 wrote to memory of 2476	2504	ocaos.exe	34
PID 2504 wrote to memory of 2476	2504	ocaos.exe	34

C:\Users\Admin\AppData\Local\Temp\22c8fc9c7ab6759e665a4e9e8bdd2904538ab352038537085f643295b6f33724.exe
"C:\Users\Admin\AppData\Local\Temp\22c8fc9c7ab6759e665a4e9e8bdd2904538ab352038537085f643295b6f33724.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2596
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\ocaos.exe "C:\Users\Admin\AppData\Local\Temp\22c8fc9c7ab6759e665a4e9e8bdd2904538ab352038537085f643295b6f33724.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:1860
- - C:\Windows\SysWOW64\PING.EXE
    ping 127.0.0.1 -n 2
    3⤵
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:2776
- - C:\Users\Admin\AppData\Local\Temp\ocaos.exe
    C:\Users\Admin\AppData\Local\Temp\\ocaos.exe "C:\Users\Admin\AppData\Local\Temp\22c8fc9c7ab6759e665a4e9e8bdd2904538ab352038537085f643295b6f33724.exe"
    3⤵
    - Deletes itself
    - Executes dropped EXE
    - Loads dropped DLL
    - Drops file in Program Files directory
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2504
  - - \??\c:\Program Files\beemunamb\lduuq.exe
      "c:\Program Files\beemunamb\lduuq.exe" "c:\Program Files\beemunamb\lduuq.dll",inflate C:\Users\Admin\AppData\Local\Temp\ocaos.exe
      4⤵
      Executes dropped EXE
      Loads dropped DLL
      Writes to the Master Boot Record (MBR)
      System Location Discovery: System Language Discovery
      Suspicious use of AdjustPrivilegeToken
      PID:2476

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Pre-OS Boot

1

T1542

Bootkit

1

T1542.003

Privilege Escalation

Defense Evasion

Pre-OS Boot

1

T1542

Bootkit

1

T1542.003

Credential Access

Discovery

Remote System Discovery

1

T1018

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

System Network Configuration Discovery

1

T1016

Internet Connection Discovery

1

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\ocaos.exe

Filesize
319KB

MD5
2b3f229d948c328d66f5df34d74e0129

SHA1
b709388fe94b879ae3edbd5451b4b552b6c0eee0

SHA256
a61ab9bd99650a5bfafb9e44afaa79f8df1556b19a110dfd8de77ff098e3790a

SHA512
332621e5d29fba69af35af45ed24e31da57b0f3323c1040001feb77537e00c091758285f90936990a707c972f66598823ed03c91d4dac2a361a4b51bd15eae27

Download Submit
\Program Files\beemunamb\lduuq.dll

Filesize
134KB

MD5
6dceba9f9df9593e2d38462e9b78dd84

SHA1
4ad55de980b6c0a89196f0757820bd15ae6bd968

SHA256
96a87be476628d1470f46b538177e70a8e6d01b721e358b39eb7ea3839f69e8e

SHA512
7af20cc518ed740412ce38be629045daee07456fade817dd8fa2f6d30c665ac307523a0b464e780e7dfa91b9dcda5497cfbc52fdf4797a8160fbf6a6bbaa0fae

Download Submit
\Program Files\beemunamb\lduuq.exe

Filesize
43KB

MD5
51138beea3e2c21ec44d0932c71762a8

SHA1
8939cf35447b22dd2c6e6f443446acc1bf986d58

SHA256
5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124

SHA512
794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d

Download Submit
memory/2476-18-0x0000000010000000-0x000000001004B000-memory.dmp

Filesize
300KB

Download
memory/2476-23-0x0000000010000000-0x000000001004B000-memory.dmp

Filesize
300KB

Download
memory/2476-22-0x0000000010000000-0x000000001004B000-memory.dmp

Filesize
300KB

Download
memory/2476-24-0x0000000010000000-0x000000001004B000-memory.dmp

Filesize
300KB

Download
memory/2504-7-0x0000000000400000-0x000000000046F000-memory.dmp

Filesize
444KB

Download
memory/2504-14-0x0000000000400000-0x000000000046F000-memory.dmp

Filesize
444KB

Download
memory/2596-0-0x0000000000400000-0x000000000046F000-memory.dmp

Filesize
444KB

Download
memory/2596-2-0x0000000000400000-0x000000000046F000-memory.dmp

Filesize
444KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads