gh0strat | 2caa3bcc4146290a87ecde0f5e9f04df6d8b74d914c8370ee65bfd418ed4d111

Analysis

max time kernel
149s
max time network
148s
platform
windows10-1703_x64
resource
win10-20220901-en
resource tags

arch:x64arch:x86image:win10-20220901-enlocale:en-usos:windows10-1703-x64system
submitted
20-09-2022 00:21

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General

Target

2caa3bcc4146290a87ecde0f5e9f04df6d8b74d914c8370ee65bfd418ed4d111.exe
Size

375KB
MD5

ba7434f836ba253b0d9f9f2b8a9ada73
SHA1

a1a108123493de1cee00a72e0db158fae6c271f0
SHA256

2caa3bcc4146290a87ecde0f5e9f04df6d8b74d914c8370ee65bfd418ed4d111
SHA512

b5bafb7dcfdb1aff410a77ae233c12d9c57c3ad684684c52b29cb7e2f4ea6920a403ca5dfa69cc35f891b52c98828609b97c8ba6563c7a13971250fe2cc6ef78
SSDEEP

6144:Tv5zQJVb5p72cHF1ybDFwekh212KhvwIb759QOaBjpaVRPu23E2rJmWjFc94:T4VOiF1WD7kE1dTYOi8V5u23zmWFy4

Score

10^/10

gh0strat rat upx

Malware Config

Signatures

Gh0st RAT payload 8 IoCs

resource	yara_rule
behavioral1/memory/2692-174-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/2692-175-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/2692-178-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/2892-247-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/4900-301-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/4564-359-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/4900-371-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat
behavioral1/memory/4564-373-0x0000000010000000-0x0000000010362000-memory.dmp	family_gh0strat

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

Executes dropped EXE 3 IoCs

pid	Process
2892	SQLSerasi.exe
4900	SQLSerasi.exe
4564	SQLSerasi.exe

UPX packed file 9 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2692-170-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/2692-174-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/2692-175-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/2692-178-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/2892-247-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/4900-301-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/4564-359-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/4900-371-0x0000000010000000-0x0000000010362000-memory.dmp	upx
behavioral1/memory/4564-373-0x0000000010000000-0x0000000010362000-memory.dmp	upx

Drops file in System32 directory 5 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5	SQLSerasi.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\counters2.dat	SQLSerasi.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5	SQLSerasi.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE	SQLSerasi.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies	SQLSerasi.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe	2caa3bcc4146290a87ecde0f5e9f04df6d8b74d914c8370ee65bfd418ed4d111.exe
File opened for modification	C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe	2caa3bcc4146290a87ecde0f5e9f04df6d8b74d914c8370ee65bfd418ed4d111.exe

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

System Information Discovery
T1082

Checks processor information in registry 2 TTPs 5 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	SQLSerasi.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	SQLSerasi.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1	SQLSerasi.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1\ProcessorNameString	SQLSerasi.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\2	SQLSerasi.exe

Modifies data under HKEY_USERS 8 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	SQLSerasi.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	SQLSerasi.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	SQLSerasi.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	SQLSerasi.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	SQLSerasi.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	SQLSerasi.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	SQLSerasi.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	SQLSerasi.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	2692	2caa3bcc4146290a87ecde0f5e9f04df6d8b74d914c8370ee65bfd418ed4d111.exe
Token: SeDebugPrivilege	2892	SQLSerasi.exe
Token: SeDebugPrivilege	4900	SQLSerasi.exe
Token: SeDebugPrivilege	4900	SQLSerasi.exe
Token: SeDebugPrivilege	4564	SQLSerasi.exe
Token: SeDebugPrivilege	4564	SQLSerasi.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2692 wrote to memory of 2892	2692	2caa3bcc4146290a87ecde0f5e9f04df6d8b74d914c8370ee65bfd418ed4d111.exe	66
PID 2692 wrote to memory of 2892	2692	2caa3bcc4146290a87ecde0f5e9f04df6d8b74d914c8370ee65bfd418ed4d111.exe	66
PID 2692 wrote to memory of 2892	2692	2caa3bcc4146290a87ecde0f5e9f04df6d8b74d914c8370ee65bfd418ed4d111.exe	66
PID 4900 wrote to memory of 4564	4900	SQLSerasi.exe	68
PID 4900 wrote to memory of 4564	4900	SQLSerasi.exe	68
PID 4900 wrote to memory of 4564	4900	SQLSerasi.exe	68

C:\Users\Admin\AppData\Local\Temp\2caa3bcc4146290a87ecde0f5e9f04df6d8b74d914c8370ee65bfd418ed4d111.exe
"C:\Users\Admin\AppData\Local\Temp\2caa3bcc4146290a87ecde0f5e9f04df6d8b74d914c8370ee65bfd418ed4d111.exe"
1⤵
- Drops file in Program Files directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2692
- C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe
  "C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2892

C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe
"C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe"
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4900
- C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe
  "C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe"
  2⤵
  - Executes dropped EXE
  - Drops file in System32 directory
  - Checks processor information in registry
  - Modifies data under HKEY_USERS
  - Suspicious use of AdjustPrivilegeToken
  PID:4564

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe

Filesize
39.4MB

MD5
4805d322fd40946c6d0f53387942b0f4

SHA1
4fbe3d59d8bce7d0a1f9b90aa86572cd83417e9f

SHA256
51046b4d81334282448c044b78787c5d0f2d8a96934483aa8b0e488cc90d31cf

SHA512
b8de58bc208c61b8713765650951abb2628dc038e6849fbb2d26b900aa2784f4fea0fd46c2a6e64f5c21d48c3eded5eb6d66ae6ff018051405c47c967904368e

Download Submit
C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe

Filesize
39.4MB

MD5
4805d322fd40946c6d0f53387942b0f4

SHA1
4fbe3d59d8bce7d0a1f9b90aa86572cd83417e9f

SHA256
51046b4d81334282448c044b78787c5d0f2d8a96934483aa8b0e488cc90d31cf

SHA512
b8de58bc208c61b8713765650951abb2628dc038e6849fbb2d26b900aa2784f4fea0fd46c2a6e64f5c21d48c3eded5eb6d66ae6ff018051405c47c967904368e

Download Submit
C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe

Filesize
39.4MB

MD5
4805d322fd40946c6d0f53387942b0f4

SHA1
4fbe3d59d8bce7d0a1f9b90aa86572cd83417e9f

SHA256
51046b4d81334282448c044b78787c5d0f2d8a96934483aa8b0e488cc90d31cf

SHA512
b8de58bc208c61b8713765650951abb2628dc038e6849fbb2d26b900aa2784f4fea0fd46c2a6e64f5c21d48c3eded5eb6d66ae6ff018051405c47c967904368e

Download Submit
C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe

Filesize
39.4MB

MD5
4805d322fd40946c6d0f53387942b0f4

SHA1
4fbe3d59d8bce7d0a1f9b90aa86572cd83417e9f

SHA256
51046b4d81334282448c044b78787c5d0f2d8a96934483aa8b0e488cc90d31cf

SHA512
b8de58bc208c61b8713765650951abb2628dc038e6849fbb2d26b900aa2784f4fea0fd46c2a6e64f5c21d48c3eded5eb6d66ae6ff018051405c47c967904368e

Download Submit
memory/2692-155-0x0000000077890000-0x0000000077A1E000-memory.dmp

Filesize
1.6MB

Download
memory/2692-169-0x0000000077890000-0x0000000077A1E000-memory.dmp

Filesize
1.6MB

Download
memory/2692-121-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/2692-123-0x0000000077890000-0x0000000077A1E000-memory.dmp

Filesize
1.6MB

Download
memory/2692-124-0x0000000077890000-0x0000000077A1E000-memory.dmp

Filesize
1.6MB

Download
memory/2692-125-0x0000000077890000-0x0000000077A1E000-memory.dmp

Filesize
1.6MB

Download
memory/2692-127-0x0000000077890000-0x0000000077A1E000-memory.dmp

Filesize
1.6MB

Download
memory/2692-126-0x0000000077890000-0x0000000077A1E000-memory.dmp

Filesize
1.6MB

Download
memory/2692-128-0x0000000077890000-0x0000000077A1E000-memory.dmp

Filesize
1.6MB

Download
memory/2692-129-0x0000000077890000-0x0000000077A1E000-memory.dmp

Filesize
1.6MB

Download
memory/2692-130-0x0000000077890000-0x0000000077A1E000-memory.dmp

Filesize
1.6MB

Download
memory/2692-131-0x0000000077890000-0x0000000077A1E000-memory.dmp

Filesize
1.6MB

Download
memory/2692-132-0x0000000077890000-0x0000000077A1E000-memory.dmp

Filesize
1.6MB

Download
memory/2692-133-0x0000000077890000-0x0000000077A1E000-memory.dmp

Filesize
1.6MB

Download
memory/2692-134-0x0000000077890000-0x0000000077A1E000-memory.dmp

Filesize
1.6MB

Download
memory/2692-156-0x0000000077890000-0x0000000077A1E000-memory.dmp

Filesize
1.6MB

Download
memory/2692-136-0x0000000077890000-0x0000000077A1E000-memory.dmp

Filesize
1.6MB

Download
memory/2692-137-0x0000000077890000-0x0000000077A1E000-memory.dmp

Filesize
1.6MB

Download
memory/2692-138-0x0000000077890000-0x0000000077A1E000-memory.dmp

Filesize
1.6MB

Download
memory/2692-139-0x0000000077890000-0x0000000077A1E000-memory.dmp

Filesize
1.6MB

Download
memory/2692-140-0x0000000077890000-0x0000000077A1E000-memory.dmp

Filesize
1.6MB

Download
memory/2692-141-0x0000000077890000-0x0000000077A1E000-memory.dmp

Filesize
1.6MB

Download
memory/2692-142-0x0000000077890000-0x0000000077A1E000-memory.dmp

Filesize
1.6MB

Download
memory/2692-143-0x0000000077890000-0x0000000077A1E000-memory.dmp

Filesize
1.6MB

Download
memory/2692-144-0x0000000077890000-0x0000000077A1E000-memory.dmp

Filesize
1.6MB

Download
memory/2692-145-0x0000000077890000-0x0000000077A1E000-memory.dmp

Filesize
1.6MB

Download
memory/2692-146-0x0000000077890000-0x0000000077A1E000-memory.dmp

Filesize
1.6MB

Download
memory/2692-147-0x0000000077890000-0x0000000077A1E000-memory.dmp

Filesize
1.6MB

Download
memory/2692-149-0x0000000077890000-0x0000000077A1E000-memory.dmp

Filesize
1.6MB

Download
memory/2692-150-0x0000000077890000-0x0000000077A1E000-memory.dmp

Filesize
1.6MB

Download
memory/2692-151-0x0000000077890000-0x0000000077A1E000-memory.dmp

Filesize
1.6MB

Download
memory/2692-152-0x0000000077890000-0x0000000077A1E000-memory.dmp

Filesize
1.6MB

Download
memory/2692-153-0x0000000077890000-0x0000000077A1E000-memory.dmp

Filesize
1.6MB

Download
memory/2692-154-0x0000000077890000-0x0000000077A1E000-memory.dmp

Filesize
1.6MB

Download
memory/2692-120-0x0000000077890000-0x0000000077A1E000-memory.dmp

Filesize
1.6MB

Download
memory/2692-148-0x0000000077890000-0x0000000077A1E000-memory.dmp

Filesize
1.6MB

Download
memory/2692-135-0x0000000077890000-0x0000000077A1E000-memory.dmp

Filesize
1.6MB

Download
memory/2692-157-0x0000000077890000-0x0000000077A1E000-memory.dmp

Filesize
1.6MB

Download
memory/2692-122-0x0000000077890000-0x0000000077A1E000-memory.dmp

Filesize
1.6MB

Download
memory/2692-159-0x0000000077890000-0x0000000077A1E000-memory.dmp

Filesize
1.6MB

Download
memory/2692-160-0x0000000077890000-0x0000000077A1E000-memory.dmp

Filesize
1.6MB

Download
memory/2692-161-0x0000000077890000-0x0000000077A1E000-memory.dmp

Filesize
1.6MB

Download
memory/2692-162-0x0000000077890000-0x0000000077A1E000-memory.dmp

Filesize
1.6MB

Download
memory/2692-163-0x0000000077890000-0x0000000077A1E000-memory.dmp

Filesize
1.6MB

Download
memory/2692-164-0x0000000077890000-0x0000000077A1E000-memory.dmp

Filesize
1.6MB

Download
memory/2692-165-0x0000000077890000-0x0000000077A1E000-memory.dmp

Filesize
1.6MB

Download
memory/2692-166-0x0000000077890000-0x0000000077A1E000-memory.dmp

Filesize
1.6MB

Download
memory/2692-167-0x0000000077890000-0x0000000077A1E000-memory.dmp

Filesize
1.6MB

Download
memory/2692-168-0x0000000077890000-0x0000000077A1E000-memory.dmp

Filesize
1.6MB

Download
memory/2692-158-0x0000000077890000-0x0000000077A1E000-memory.dmp

Filesize
1.6MB

Download
memory/2692-170-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/2692-173-0x0000000077890000-0x0000000077A1E000-memory.dmp

Filesize
1.6MB

Download
memory/2692-174-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/2692-175-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/2692-176-0x0000000077890000-0x0000000077A1E000-memory.dmp

Filesize
1.6MB

Download
memory/2692-178-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/2692-177-0x0000000077890000-0x0000000077A1E000-memory.dmp

Filesize
1.6MB

Download
memory/2692-179-0x0000000077890000-0x0000000077A1E000-memory.dmp

Filesize
1.6MB

Download
memory/2692-180-0x0000000077890000-0x0000000077A1E000-memory.dmp

Filesize
1.6MB

Download
memory/2692-181-0x0000000077890000-0x0000000077A1E000-memory.dmp

Filesize
1.6MB

Download
memory/2692-182-0x0000000077890000-0x0000000077A1E000-memory.dmp

Filesize
1.6MB

Download
memory/2692-183-0x0000000077890000-0x0000000077A1E000-memory.dmp

Filesize
1.6MB

Download
memory/2692-184-0x0000000077890000-0x0000000077A1E000-memory.dmp

Filesize
1.6MB

Download
memory/2692-185-0x0000000077890000-0x0000000077A1E000-memory.dmp

Filesize
1.6MB

Download
memory/2692-191-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/2892-188-0x0000000000000000-mapping.dmp

Download
memory/2892-247-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/2892-303-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/4564-304-0x0000000000000000-mapping.dmp

Download
memory/4564-359-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/4564-372-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/4564-373-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/4900-301-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download
memory/4900-370-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/4900-371-0x0000000010000000-0x0000000010362000-memory.dmp

Filesize
3.4MB

Download