a7ba9136308c1b70fed84e38e60cc08dc6965814ff18d83fa13db4dddd05b298

General

Target

988b3e8680d498528fd0a715d61a5816.exe
Size

99KB
MD5

988b3e8680d498528fd0a715d61a5816
SHA1

a92013f44773818611502fa53f8d06d5c15ba561
SHA256

a7ba9136308c1b70fed84e38e60cc08dc6965814ff18d83fa13db4dddd05b298
SHA512

2d3d876b8b65c41cd2cd9144e0dc1f9dab3f6c76ee43fcda8f048061c9a7f065f1eb13773fbf67ad30d0217ddb31122554d944e1e04289b3dd83ab921e9bb696
SSDEEP

3072:sr3KcWmjRrzSH5s4M/BtM9r2hOYZpYx6Da:/64exhOYUMDa

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
1912	CrXZgpaxffRaqrR.exe
2156	CTS.exe

Loads dropped DLL 2 IoCs

pid	Process
1940	988b3e8680d498528fd0a715d61a5816.exe
1940	988b3e8680d498528fd0a715d61a5816.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1940-1-0x0000000000CC0000-0x0000000000CD7000-memory.dmp	upx
behavioral1/memory/1940-14-0x0000000000CC0000-0x0000000000CD7000-memory.dmp	upx
behavioral1/files/0x000d000000014313-13.dat	upx
behavioral1/memory/2156-18-0x0000000000DF0000-0x0000000000E07000-memory.dmp	upx
behavioral1/files/0x000b000000012234-20.dat	upx

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\CTS = "C:\\Windows\\CTS.exe"	CTS.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\CTS = "C:\\Windows\\CTS.exe"	988b3e8680d498528fd0a715d61a5816.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\CTS.exe	988b3e8680d498528fd0a715d61a5816.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1940	988b3e8680d498528fd0a715d61a5816.exe
Token: SeDebugPrivilege	2156	CTS.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1940 wrote to memory of 1912	1940	988b3e8680d498528fd0a715d61a5816.exe	28
PID 1940 wrote to memory of 1912	1940	988b3e8680d498528fd0a715d61a5816.exe	28
PID 1940 wrote to memory of 1912	1940	988b3e8680d498528fd0a715d61a5816.exe	28
PID 1940 wrote to memory of 1912	1940	988b3e8680d498528fd0a715d61a5816.exe	28
PID 1940 wrote to memory of 2156	1940	988b3e8680d498528fd0a715d61a5816.exe	30
PID 1940 wrote to memory of 2156	1940	988b3e8680d498528fd0a715d61a5816.exe	30
PID 1940 wrote to memory of 2156	1940	988b3e8680d498528fd0a715d61a5816.exe	30
PID 1940 wrote to memory of 2156	1940	988b3e8680d498528fd0a715d61a5816.exe	30

C:\Users\Admin\AppData\Local\Temp\988b3e8680d498528fd0a715d61a5816.exe
"C:\Users\Admin\AppData\Local\Temp\988b3e8680d498528fd0a715d61a5816.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1940
- C:\Users\Admin\AppData\Local\Temp\CrXZgpaxffRaqrR.exe
  C:\Users\Admin\AppData\Local\Temp\CrXZgpaxffRaqrR.exe
  2⤵
  - Executes dropped EXE
  PID:1912
- C:\Windows\CTS.exe
  "C:\Windows\CTS.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Drops file in Windows directory
  - Suspicious use of AdjustPrivilegeToken
  PID:2156

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
99KB

MD5
8b8ea8d15cf3a3481685830963540086

SHA1
7cbe65921f506f867ba070c8b08a87138563577b

SHA256
19cb6d8ee4900b03307308629e6b3860feca325ecef98140c58b366ae90b97d6

SHA512
e1bb2bca1df26c918521c514ce0e8ce36e6458f4926ededdc201c1723c73635684aabb674c02c4d4d054e515fe5efe878647c021d926edadd6d990039e855f88

Download Submit
C:\Windows\CTS.exe

Filesize
35KB

MD5
93e5f18caebd8d4a2c893e40e5f38232

SHA1
fd55c4e6bcd108bce60ea719c06dc9c4d0adafa6

SHA256
a66c4b98becac2f69cb107cd087d7a2ca9ef511bc3b83367b1f440f11dd159a8

SHA512
986583610d27caae2080834301d072557c5d2c85e33f0d19ab1245d7eae8db146397461572ddb3d491be16f3af210720d54267dac838fdad8fe34afa3d6b7f54

Download Submit
\Users\Admin\AppData\Local\Temp\CrXZgpaxffRaqrR.exe

Filesize
64KB

MD5
a32a382b8a5a906e03a83b4f3e5b7a9b

SHA1
11e2bdd0798761f93cce363329996af6c17ed796

SHA256
75f12ea2f30d9c0d872dade345f30f562e6d93847b6a509ba53beec6d0b2c346

SHA512
ec87dd957be21b135212454646dcabdd7ef9442cf714e2c1f6b42b81f0c3fa3b1875bde9a8b538e8a0aa2190225649c29e9ed0f25176e7659e55e422dd4efe4c

Download Submit
memory/1940-1-0x0000000000CC0000-0x0000000000CD7000-memory.dmp

Filesize
92KB

Download
memory/1940-14-0x0000000000CC0000-0x0000000000CD7000-memory.dmp

Filesize
92KB

Download
memory/1940-15-0x0000000000220000-0x0000000000237000-memory.dmp

Filesize
92KB

Download
memory/2156-18-0x0000000000DF0000-0x0000000000E07000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads