1dc72890b2ec6345a0db62742d86f7225e504033ba7077791c09d969e2b55c80

General

Target

9893c911c89080f14e015612d75e649b.exe
Size

221KB
MD5

9893c911c89080f14e015612d75e649b
SHA1

a849312fd08bd8e73c5e440955949bd0f8e13b36
SHA256

1dc72890b2ec6345a0db62742d86f7225e504033ba7077791c09d969e2b55c80
SHA512

bd57c403010369fb60d9e40aa38bcb7b4ddc4f0e75f56ea2f496ad6f10566dfc7eec2ee6c38df33f824f00a57672c5291c3cb29dfa30f5bbbe953e5389ff0842
SSDEEP

3072:vjr5ELbGnzi+aoJjr5ELbGnzi+aoBV6SfVPT9M3Gki:BhXaKhXauV6EcGki

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
3808	FzKuBUZ6bwu7wQU.exe
396	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
behavioral2/memory/3976-0-0x00000000000E0000-0x00000000000F9000-memory.dmp	upx
behavioral2/memory/3976-8-0x00000000000E0000-0x00000000000F9000-memory.dmp	upx
behavioral2/files/0x00070000000231ed-6.dat	upx
behavioral2/memory/396-9-0x0000000000D40000-0x0000000000D59000-memory.dmp	upx
behavioral2/files/0x0007000000022cdf-12.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"	9893c911c89080f14e015612d75e649b.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	CTS.exe
File created	C:\Windows\CTS.exe	9893c911c89080f14e015612d75e649b.exe

Checks processor information in registry 2 TTPs 3 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	dw20.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	dw20.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	dw20.exe

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	dw20.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	dw20.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	3976	9893c911c89080f14e015612d75e649b.exe
Token: SeDebugPrivilege	396	CTS.exe
Token: SeBackupPrivilege	4540	dw20.exe
Token: SeBackupPrivilege	4540	dw20.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 3976 wrote to memory of 3808	3976	9893c911c89080f14e015612d75e649b.exe	84
PID 3976 wrote to memory of 3808	3976	9893c911c89080f14e015612d75e649b.exe	84
PID 3976 wrote to memory of 396	3976	9893c911c89080f14e015612d75e649b.exe	85
PID 3976 wrote to memory of 396	3976	9893c911c89080f14e015612d75e649b.exe	85
PID 3976 wrote to memory of 396	3976	9893c911c89080f14e015612d75e649b.exe	85
PID 3808 wrote to memory of 4540	3808	FzKuBUZ6bwu7wQU.exe	87
PID 3808 wrote to memory of 4540	3808	FzKuBUZ6bwu7wQU.exe	87

C:\Users\Admin\AppData\Local\Temp\9893c911c89080f14e015612d75e649b.exe
"C:\Users\Admin\AppData\Local\Temp\9893c911c89080f14e015612d75e649b.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3976
- C:\Users\Admin\AppData\Local\Temp\FzKuBUZ6bwu7wQU.exe
  C:\Users\Admin\AppData\Local\Temp\FzKuBUZ6bwu7wQU.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of WriteProcessMemory
  PID:3808
- - C:\Windows\Microsoft.NET\Framework64\v2.0.50727\dw20.exe
    dw20.exe -x -s 808
    3⤵
    - Checks processor information in registry
    - Enumerates system info in registry
    - Suspicious use of AdjustPrivilegeToken
    PID:4540
- 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:396

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

Query Registry

2

T1012

System Information Discovery

2

T1082

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
488KB

MD5
995aab4db42311beb9c2b970f6ce39d2

SHA1
fba8c52002ecd17d85769535590644425e1838d0

SHA256
fb1ead62c252d52cf574f387c0989ec3a3bd4de5c8f6a0e9df3d1f8ca4fd7a23

SHA512
50536acc9f5d8a9cbd36a3a23ca09d13acb76d7f2d4a7786f26d862bf63654b0f4b0020860ef26080fa691b5ac113dc0517607f03e7ff1c18f177842c7c04057

Download Submit
C:\Users\Admin\AppData\Local\Temp\FzKuBUZ6bwu7wQU.exe

Filesize
56KB

MD5
e115521ba14b75f53dcdff087ec6898f

SHA1
87103a892bb514a93d485fba221bacb9da3aae25

SHA256
59b284d0ad4c2634938e70fae67d9048bd98422d052fbd745a9b80b5fae7ae29

SHA512
ab3d097bcf11bf7327a28124052b210f5fb13b9bfb9b7376cae1ba5c30182a330506935288a7fe06b7e3fdd82b57f5c31638f1c301738342819c772b346fa35a

Download Submit
C:\Windows\CTS.exe

Filesize
165KB

MD5
f974405ea3275e8393abd570b36a20cd

SHA1
f93348a9a4d1728a9e06d855a1b9bf7c8695802f

SHA256
399af04590e8c1b7273e68dc26fe92631bd9d2bf4add2867345f622700f094b7

SHA512
df64e0d26867c7303d86aa2d9c9b3c8cd39d5f512f059d1f9f85539fc0a0f2f76726e48634e78895a2819e3295d797a15f05b69929379ec2c060604cdfc584fd

Download Submit
memory/396-9-0x0000000000D40000-0x0000000000D59000-memory.dmp

Filesize
100KB

Download
memory/3808-27-0x00007FF826120000-0x00007FF826AC1000-memory.dmp

Filesize
9.6MB

Download
memory/3808-28-0x0000000000DC0000-0x0000000000DD0000-memory.dmp

Filesize
64KB

Download
memory/3808-29-0x00007FF826120000-0x00007FF826AC1000-memory.dmp

Filesize
9.6MB

Download
memory/3808-39-0x00007FF826120000-0x00007FF826AC1000-memory.dmp

Filesize
9.6MB

Download
memory/3976-0-0x00000000000E0000-0x00000000000F9000-memory.dmp

Filesize
100KB

Download
memory/3976-8-0x00000000000E0000-0x00000000000F9000-memory.dmp

Filesize
100KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads