20f62f530b38f073958200ba31f3b2f54efe2862e322de633581cc95b48b88ff

General

Target

07a35f248a01747dfd03070bd6eced76.exe
Size

115KB
MD5

07a35f248a01747dfd03070bd6eced76
SHA1

0e73ff1adf932d8ad312589d0b289f493b410115
SHA256

20f62f530b38f073958200ba31f3b2f54efe2862e322de633581cc95b48b88ff
SHA512

af9300e02ad9b41da9fa453cb8fd185aaf71cce921d6267d475b79b04fa44b99867807c33e98e7d615dd6db04a29275534f3b5bab03daaf1fbfb805dbaf35bc0
SSDEEP

3072:SKcWmjRrz3ZKcWmjRrz3UNCf+yTXhl/FCMAzgcGu:hGyGWu+yTwMA0cGu

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
4040	OBajRyzE2t85Oar.exe
1456	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/2660-0-0x0000000000350000-0x0000000000367000-memory.dmp	upx
behavioral2/memory/1456-9-0x0000000000290000-0x00000000002A7000-memory.dmp	upx
behavioral2/files/0x0007000000023216-8.dat	upx
behavioral2/files/0x0003000000022764-13.dat	upx
behavioral2/memory/2660-7-0x0000000000350000-0x0000000000367000-memory.dmp	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"	07a35f248a01747dfd03070bd6eced76.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	07a35f248a01747dfd03070bd6eced76.exe
File created	C:\Windows\CTS.exe	CTS.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	2660	07a35f248a01747dfd03070bd6eced76.exe
Token: SeDebugPrivilege	1456	CTS.exe
Token: SeBackupPrivilege	2560	dw20.exe
Token: SeBackupPrivilege	2560	dw20.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2660 wrote to memory of 4040	2660	07a35f248a01747dfd03070bd6eced76.exe	21
PID 2660 wrote to memory of 4040	2660	07a35f248a01747dfd03070bd6eced76.exe	21
PID 2660 wrote to memory of 1456	2660	07a35f248a01747dfd03070bd6eced76.exe	20
PID 2660 wrote to memory of 1456	2660	07a35f248a01747dfd03070bd6eced76.exe	20
PID 2660 wrote to memory of 1456	2660	07a35f248a01747dfd03070bd6eced76.exe	20
PID 4040 wrote to memory of 2560	4040	OBajRyzE2t85Oar.exe	22
PID 4040 wrote to memory of 2560	4040	OBajRyzE2t85Oar.exe	22

C:\Windows\CTS.exe
"C:\Windows\CTS.exe"
1⤵
- Executes dropped EXE
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
PID:1456

C:\Users\Admin\AppData\Local\Temp\OBajRyzE2t85Oar.exe
C:\Users\Admin\AppData\Local\Temp\OBajRyzE2t85Oar.exe
1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4040
- C:\Windows\Microsoft.NET\Framework64\v2.0.50727\dw20.exe
  dw20.exe -x -s 816
  2⤵
  - Checks processor information in registry
  - Enumerates system info in registry
  - Suspicious use of AdjustPrivilegeToken
  PID:2560

C:\Users\Admin\AppData\Local\Temp\07a35f248a01747dfd03070bd6eced76.exe
"C:\Users\Admin\AppData\Local\Temp\07a35f248a01747dfd03070bd6eced76.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2660

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Microsoft\Office\16.0\excel.exe_Rules.xml

Filesize
383KB

MD5
2eb85045ee7815e970147cc629486534

SHA1
5c58e086a34f048f811a575f2f6d74c2c2a679cb

SHA256
c087d7f231bd3334a448c472a92caa0a6cee9b7e1b7f0ad007de6cf8ee987b4f

SHA512
a9fa171c4ac80a38755f2790d8431f9acb7c04dd55ba3dca3e5cbf026d389b1ca2b3235f6d32772c28db4654b58073b5b5f1e9db2661a251d78884ad9a3224a4

Download Submit
C:\Users\Admin\AppData\Local\Temp\OBajRyzE2t85Oar.exe

Filesize
56KB

MD5
e115521ba14b75f53dcdff087ec6898f

SHA1
87103a892bb514a93d485fba221bacb9da3aae25

SHA256
59b284d0ad4c2634938e70fae67d9048bd98422d052fbd745a9b80b5fae7ae29

SHA512
ab3d097bcf11bf7327a28124052b210f5fb13b9bfb9b7376cae1ba5c30182a330506935288a7fe06b7e3fdd82b57f5c31638f1c301738342819c772b346fa35a

Download Submit
C:\Windows\CTS.exe

Filesize
59KB

MD5
5efd390d5f95c8191f5ac33c4db4b143

SHA1
42d81b118815361daa3007f1a40f1576e9a9e0bc

SHA256
6028434636f349d801465f77af3a1e387a9c5032942ca6cadb6506d0800f2a74

SHA512
720fbe253483dc034307a57a2860c8629a760f883603198d1213f5290b7f236bf0f5f237728ebed50962be83dc7dc4abe61a1e9a55218778495fc6580eb20b3d

Download Submit
memory/1456-9-0x0000000000290000-0x00000000002A7000-memory.dmp

Filesize
92KB

Download
memory/2660-0-0x0000000000350000-0x0000000000367000-memory.dmp

Filesize
92KB

Download
memory/2660-7-0x0000000000350000-0x0000000000367000-memory.dmp

Filesize
92KB

Download
memory/4040-27-0x00007FFACEA80000-0x00007FFACF421000-memory.dmp

Filesize
9.6MB

Download
memory/4040-28-0x0000000000B40000-0x0000000000B50000-memory.dmp

Filesize
64KB

Download
memory/4040-29-0x00007FFACEA80000-0x00007FFACF421000-memory.dmp

Filesize
9.6MB

Download
memory/4040-39-0x00007FFACEA80000-0x00007FFACF421000-memory.dmp

Filesize
9.6MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads