gh0strat | 7d1b76e5ffd972da972372d210d4c671f964e3865a2010ff3f5e1f58af3a715c

General

Target

7d1b76e5ffd972da972372d210d4c671f964e3865a2010ff3f5e1f58af3a715c.exe
Size

120KB
MD5

d6eaeb35723f725e9507660e9f8e4d8c
SHA1

66a1fec032e4d6bb335d9bef2fc873e3c204387a
SHA256

7d1b76e5ffd972da972372d210d4c671f964e3865a2010ff3f5e1f58af3a715c
SHA512

9cb858f52aea3f273b05bbeab60c70cbe669af7d64f4fd68826dc034957858ab6ce75cce23a95df8633069eba1d88f5ceb3930b5b007078a5f99790c2bdb8ab2
SSDEEP

3072:0PuFP9wPK9fHwkDygAs8sslc7TSqSz4ty:0QWCHwoQsI0TS

Score

10^/10

gh0strat rat

Malware Config

Signatures

Gh0st RAT payload 2 IoCs

resource	yara_rule
behavioral2/files/0x0007000000022f65-132.dat	family_gh0strat
behavioral2/files/0x0007000000022f65-133.dat	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 1 IoCs

pid	Process
4048	Terms.EXE

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation	7d1b76e5ffd972da972372d210d4c671f964e3865a2010ff3f5e1f58af3a715c.exe

Drops file in System32 directory 4 IoCs

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

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\Terms.EXE	7d1b76e5ffd972da972372d210d4c671f964e3865a2010ff3f5e1f58af3a715c.exe
File opened for modification	C:\Windows\Terms.EXE	7d1b76e5ffd972da972372d210d4c671f964e3865a2010ff3f5e1f58af3a715c.exe

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1812	4048	WerFault.exe	78

Modifies data under HKEY_USERS 8 IoCs

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

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\Local Settings	7d1b76e5ffd972da972372d210d4c671f964e3865a2010ff3f5e1f58af3a715c.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
1064	7d1b76e5ffd972da972372d210d4c671f964e3865a2010ff3f5e1f58af3a715c.exe
1064	7d1b76e5ffd972da972372d210d4c671f964e3865a2010ff3f5e1f58af3a715c.exe
4048	Terms.EXE
4048	Terms.EXE
1064	7d1b76e5ffd972da972372d210d4c671f964e3865a2010ff3f5e1f58af3a715c.exe
1064	7d1b76e5ffd972da972372d210d4c671f964e3865a2010ff3f5e1f58af3a715c.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4048	Terms.EXE

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1064 wrote to memory of 2748	1064	7d1b76e5ffd972da972372d210d4c671f964e3865a2010ff3f5e1f58af3a715c.exe	79
PID 1064 wrote to memory of 2748	1064	7d1b76e5ffd972da972372d210d4c671f964e3865a2010ff3f5e1f58af3a715c.exe	79
PID 1064 wrote to memory of 2748	1064	7d1b76e5ffd972da972372d210d4c671f964e3865a2010ff3f5e1f58af3a715c.exe	79

C:\Users\Admin\AppData\Local\Temp\7d1b76e5ffd972da972372d210d4c671f964e3865a2010ff3f5e1f58af3a715c.exe
"C:\Users\Admin\AppData\Local\Temp\7d1b76e5ffd972da972372d210d4c671f964e3865a2010ff3f5e1f58af3a715c.exe"
1⤵
- Checks computer location settings
- Drops file in Windows directory
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1064
- C:\Windows\SysWOW64\WScript.exe
  "C:\Windows\System32\WScript.exe" "C:\7336.vbs"
  2⤵
  PID:2748

C:\Windows\Terms.EXE
C:\Windows\Terms.EXE
1⤵
- Executes dropped EXE
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4048
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4048 -s 1300
  2⤵
  - Program crash
  PID:1812

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 4048 -ip 4048
1⤵
PID:1532

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\7336.vbs

Filesize
500B

MD5
fba54c558346622bc6cab5036402ee2c

SHA1
cbf8cdb3536af2ade301b47cce92e7f3c75dccbd

SHA256
7b6487f2aa98a09796d2ec8ccd800a239d566380c9d384fc22ddcbc328337bf5

SHA512
8340021425e446ef87a050f5d82f3a3b286dab0ba09e55eba65250c2ef327720a712ee505bb3417c9b13cf795efbbd343726e813a90b17075332e96dc73c7fd6

Download Submit
C:\Windows\Terms.EXE

Filesize
100.1MB

MD5
4fe2ebddc8b43db1b67a7d496302b2dc

SHA1
0b22c9d1ad3893800c8175b739fb635f4f5f64c3

SHA256
20ffdcd05df637dbee57b1b18ddf35554cd42497d74da28addc9d52620245fd6

SHA512
89fdc3457cc478326c2b2a3d06859f86b487072a39a7f0d39e1c9ec4097539f598e9c6c71618eb0754010294c5aa55a69308f2a301dd62e3b3ed0e3d6a3261cd

Download Submit
C:\Windows\Terms.EXE

Filesize
100.1MB

MD5
4fe2ebddc8b43db1b67a7d496302b2dc

SHA1
0b22c9d1ad3893800c8175b739fb635f4f5f64c3

SHA256
20ffdcd05df637dbee57b1b18ddf35554cd42497d74da28addc9d52620245fd6

SHA512
89fdc3457cc478326c2b2a3d06859f86b487072a39a7f0d39e1c9ec4097539f598e9c6c71618eb0754010294c5aa55a69308f2a301dd62e3b3ed0e3d6a3261cd

Download Submit

Analysis

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