b3c02856b12d3a7aa48e4a53879f34290ec282da57cd81fff62825c86ff8e11a

Analysis

max time kernel
142s
max time network
128s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
04-01-2024 05:26

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General

Target

4002a100f2d5c79432818ddf0bbc2c5d.exe
Size

46KB
MD5

4002a100f2d5c79432818ddf0bbc2c5d
SHA1

64a3e2c5343cd9c5a6067a79e6997edcd4851c68
SHA256

b3c02856b12d3a7aa48e4a53879f34290ec282da57cd81fff62825c86ff8e11a
SHA512

4c99e8a570a4ae782b43d50b7bbd46dd0e911b429dee60025ffc43353c05c84a7fffad947aa80c1928b2173bf0e502c4eac0cfd9be6a9cff34ef9d54b00f4a16
SSDEEP

768:XocAX3LKew369lp2z3Sd4baFXLjwP/Tgj93b8NIocVSEFlzdNskHBloawqrY+0FZ:SKcR4mjD9r823FlJfloajuu+5BZ

Score

7^/10

persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2432	CTS.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/2056-0-0x0000000001300000-0x0000000001317000-memory.dmp	upx
behavioral1/files/0x0009000000012270-7.dat	upx
behavioral1/memory/2056-9-0x0000000001300000-0x0000000001317000-memory.dmp	upx
behavioral1/memory/2432-12-0x0000000000AA0000-0x0000000000AB7000-memory.dmp	upx
behavioral1/files/0x000a000000012262-14.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"	4002a100f2d5c79432818ddf0bbc2c5d.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\CTS = "C:\\Windows\\CTS.exe"	CTS.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\CTS.exe	4002a100f2d5c79432818ddf0bbc2c5d.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2056	4002a100f2d5c79432818ddf0bbc2c5d.exe
Token: SeDebugPrivilege	2432	CTS.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2056 wrote to memory of 2432	2056	4002a100f2d5c79432818ddf0bbc2c5d.exe	28
PID 2056 wrote to memory of 2432	2056	4002a100f2d5c79432818ddf0bbc2c5d.exe	28
PID 2056 wrote to memory of 2432	2056	4002a100f2d5c79432818ddf0bbc2c5d.exe	28
PID 2056 wrote to memory of 2432	2056	4002a100f2d5c79432818ddf0bbc2c5d.exe	28

C:\Users\Admin\AppData\Local\Temp\4002a100f2d5c79432818ddf0bbc2c5d.exe
"C:\Users\Admin\AppData\Local\Temp\4002a100f2d5c79432818ddf0bbc2c5d.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2056
- 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:2432

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\5IvJtVRlrzJWxDB.exe

Filesize
46KB

MD5
99d38c2ebd2666b9863f22b8d02802e1

SHA1
18d2111a8b3b87e661b0cda636d8e580ab9c5113

SHA256
efd14d55abd5318078935a5ced5b7a61c94bb6043d387db10eddb72674b15129

SHA512
eea8607fcec76d7574a0d2d1e5ebe31cd1d93e04cb3d2d44f0a8ec84962b0941bcdd5e0767d2a9320279f66e29a2a36b487e6dc461054e82bfefa5de681a2e8e

Download Submit
C:\Windows\CTS.exe

Filesize
29KB

MD5
70aa23c9229741a9b52e5ce388a883ac

SHA1
b42683e21e13de3f71db26635954d992ebe7119e

SHA256
9d25cc704b1c00c9d17903e25ca35c319663e997cb9da0b116790b639e9688f2

SHA512
be604a2ad5ab8a3e5edb8901016a76042ba873c8d05b4ef8eec31241377ec6b2a883b51c6912dc7640581ffa624547db334683975883ae74e62808b5ae9ab0b5

Download Submit
memory/2056-0-0x0000000001300000-0x0000000001317000-memory.dmp

Filesize
92KB

Download
memory/2056-9-0x0000000001300000-0x0000000001317000-memory.dmp

Filesize
92KB

Download
memory/2056-8-0x0000000000070000-0x0000000000087000-memory.dmp

Filesize
92KB

Download
memory/2432-12-0x0000000000AA0000-0x0000000000AB7000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads