2e3a387e987e655773651828eee37e0ee3e73022f236c8dcd5d852532f82b7cd

General

Target

641438944178e60b75c06f55b22d81de_JC.exe
Size

532KB
MD5

641438944178e60b75c06f55b22d81de
SHA1

e29dff12ef0b56f909c6f288fb3150d8b854e8ea
SHA256

2e3a387e987e655773651828eee37e0ee3e73022f236c8dcd5d852532f82b7cd
SHA512

811d22ab07353bd91ab0d8cfd6adc78e3e3ba1509f91271f7b13a72c1bb9d788d1c571496529f7cfc78620d80522dc70461750ac6cc04708ad4098b3ca2b968d
SSDEEP

12288:/mbEGosWnm8BgL0CMZXSP1+cUXT8RYEYvCzr1TBp:lsgm2ZZw1jemv1Tn

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
3384	yg39BUcECK0eXHm.exe
4304	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 6 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3904-0-0x0000000000AE0000-0x0000000000AF9000-memory.dmp	upx
behavioral2/memory/4304-9-0x0000000001000000-0x0000000001019000-memory.dmp	upx
behavioral2/files/0x000200000002287e-8.dat	upx
behavioral2/memory/3904-10-0x0000000000AE0000-0x0000000000AF9000-memory.dmp	upx
behavioral2/files/0x000200000002287e-7.dat	upx
behavioral2/files/0x00070000000224d0-13.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"	641438944178e60b75c06f55b22d81de_JC.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	641438944178e60b75c06f55b22d81de_JC.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3904	641438944178e60b75c06f55b22d81de_JC.exe
Token: SeDebugPrivilege	4304	CTS.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3904 wrote to memory of 3384	3904	641438944178e60b75c06f55b22d81de_JC.exe	83
PID 3904 wrote to memory of 3384	3904	641438944178e60b75c06f55b22d81de_JC.exe	83
PID 3904 wrote to memory of 3384	3904	641438944178e60b75c06f55b22d81de_JC.exe	83
PID 3904 wrote to memory of 4304	3904	641438944178e60b75c06f55b22d81de_JC.exe	84
PID 3904 wrote to memory of 4304	3904	641438944178e60b75c06f55b22d81de_JC.exe	84
PID 3904 wrote to memory of 4304	3904	641438944178e60b75c06f55b22d81de_JC.exe	84

C:\Users\Admin\AppData\Local\Temp\641438944178e60b75c06f55b22d81de_JC.exe
"C:\Users\Admin\AppData\Local\Temp\641438944178e60b75c06f55b22d81de_JC.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3904
- C:\Users\Admin\AppData\Local\Temp\yg39BUcECK0eXHm.exe
  C:\Users\Admin\AppData\Local\Temp\yg39BUcECK0eXHm.exe
  2⤵
  - Executes dropped EXE
  PID:3384
- 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:4304

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\Microsoft\Office\16.0\excel.exe_Rules.xml

Filesize
406KB

MD5
1eb28eaa4277aaa59a983fe03a18ea1a

SHA1
c00004a166a457e405b85a853b75299c77517c94

SHA256
aa48e7f0a44a35347b48ab2c3d0c2834abf2dc0e8a4b0703f213f7a817eaec0b

SHA512
c713d1e56f4a728bd469fe9161061a2d0468eb7cd3b7a50ca4c3e5c7337029522118180fad2a73098bd97dec6de88e18f10a4e5928e79091b552055bc55b147b

Download Submit
C:\Users\Admin\AppData\Local\Temp\yg39BUcECK0eXHm.exe

Filesize
447KB

MD5
3f461ca3e3d9da036cf1a4a06ddf4fb4

SHA1
15395e4b656cee3a708bc50c1094e3fa0c46802e

SHA256
cd8e84c1f8d1ee3a7014343e3fb236329d2b67c1ec233ea4b208d99e3f95105b

SHA512
d0cb3f56db648c9ee151990260a864cdcd0d508a1dafcd741d8b2ccd8f73ba29607f384a4e2752502419cfd4a41d2288d7c3ffec93925be85fc39dad9c01e7f5

Download Submit
C:\Users\Admin\AppData\Local\Temp\yg39BUcECK0eXHm.exe

Filesize
447KB

MD5
3f461ca3e3d9da036cf1a4a06ddf4fb4

SHA1
15395e4b656cee3a708bc50c1094e3fa0c46802e

SHA256
cd8e84c1f8d1ee3a7014343e3fb236329d2b67c1ec233ea4b208d99e3f95105b

SHA512
d0cb3f56db648c9ee151990260a864cdcd0d508a1dafcd741d8b2ccd8f73ba29607f384a4e2752502419cfd4a41d2288d7c3ffec93925be85fc39dad9c01e7f5

Download Submit
C:\Windows\CTS.exe

Filesize
84KB

MD5
61e4cd6776d8367eee2470e5452bdd15

SHA1
ce19b517032d6cd9b201a4e74eaaf009f86d6563

SHA256
ff52d994f38f49789547cf1efe7c6a6535162c2ee1c405dadd229a6be1cf23a3

SHA512
ba6db6db02788cc9b3bbaed92fb4a47d11f9a857a00b5384ec4f5f4baa91825a6800f255f030c0ac455ab3562c321c632ab39ad4ddfcedd9530db1515fe6cd77

Download Submit
C:\Windows\CTS.exe

Filesize
84KB

MD5
61e4cd6776d8367eee2470e5452bdd15

SHA1
ce19b517032d6cd9b201a4e74eaaf009f86d6563

SHA256
ff52d994f38f49789547cf1efe7c6a6535162c2ee1c405dadd229a6be1cf23a3

SHA512
ba6db6db02788cc9b3bbaed92fb4a47d11f9a857a00b5384ec4f5f4baa91825a6800f255f030c0ac455ab3562c321c632ab39ad4ddfcedd9530db1515fe6cd77

Download Submit
memory/3904-0-0x0000000000AE0000-0x0000000000AF9000-memory.dmp

Filesize
100KB

Download
memory/3904-10-0x0000000000AE0000-0x0000000000AF9000-memory.dmp

Filesize
100KB

Download
memory/4304-9-0x0000000001000000-0x0000000001019000-memory.dmp

Filesize
100KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads