5e15b22616336cf9939825b370560d60d5ff93ea396c73a9edf905fa90e1ca80

General

Target

381f62cf13a811d0176acfbdfb7ffde2.exe
Size

78KB
MD5

381f62cf13a811d0176acfbdfb7ffde2
SHA1

84b38fffa932b78b179042fc685e4eaedaf44699
SHA256

5e15b22616336cf9939825b370560d60d5ff93ea396c73a9edf905fa90e1ca80
SHA512

eecee0da1c2ebd09468f49d21452b6ec94c660caef0cebad79b429341f368ad8a9a24915041fb37ac33391746094ce031b9b00291e27b58e2f0ecd143d01e15c
SSDEEP

1536:SKcR4mjD9r823FHKcR4mjD9r823Fx3r4EGQO8JMVbbj:SKcWmjRrz3ZKcWmjRrz3X3B4

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
4084	4kWtui9YgkP70Bb.exe
1044	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 7 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3096-0-0x0000000000F40000-0x0000000000F57000-memory.dmp	upx
behavioral2/memory/3096-7-0x0000000000F40000-0x0000000000F57000-memory.dmp	upx
behavioral2/memory/1044-9-0x0000000000050000-0x0000000000067000-memory.dmp	upx
behavioral2/files/0x0007000000023232-8.dat	upx
behavioral2/files/0x0007000000023232-6.dat	upx
behavioral2/files/0x0003000000022778-13.dat	upx
behavioral2/memory/1044-32-0x0000000000050000-0x0000000000067000-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"	CTS.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\CTS = "C:\\Windows\\CTS.exe"	381f62cf13a811d0176acfbdfb7ffde2.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\CTS.exe	381f62cf13a811d0176acfbdfb7ffde2.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3096	381f62cf13a811d0176acfbdfb7ffde2.exe
Token: SeDebugPrivilege	1044	CTS.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 3096 wrote to memory of 4084	3096	381f62cf13a811d0176acfbdfb7ffde2.exe	17
PID 3096 wrote to memory of 4084	3096	381f62cf13a811d0176acfbdfb7ffde2.exe	17
PID 3096 wrote to memory of 1044	3096	381f62cf13a811d0176acfbdfb7ffde2.exe	15
PID 3096 wrote to memory of 1044	3096	381f62cf13a811d0176acfbdfb7ffde2.exe	15
PID 3096 wrote to memory of 1044	3096	381f62cf13a811d0176acfbdfb7ffde2.exe	15

C:\Users\Admin\AppData\Local\Temp\381f62cf13a811d0176acfbdfb7ffde2.exe
"C:\Users\Admin\AppData\Local\Temp\381f62cf13a811d0176acfbdfb7ffde2.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3096
- 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:1044
- C:\Users\Admin\AppData\Local\Temp\4kWtui9YgkP70Bb.exe
  C:\Users\Admin\AppData\Local\Temp\4kWtui9YgkP70Bb.exe
  2⤵
  - Executes dropped EXE
  PID:4084

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

Replay Monitor

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Downloads

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

Filesize
180KB

MD5
3b8bd8359058bd4dfa89efb9dea545fb

SHA1
5a5b7997d83a07e192f1b996c753aa1e23c71dc4

SHA256
772f6a24fa5ac949e229666b64947722ecf3b92c4bb4cbdf70f039667741d925

SHA512
d66d5a38815880a95956837f366f87c52987e83481a0eca0d94b568d08442db4886c37b41fd2f4537112b12a2c1df961ee95a6257c5fa5f0a16c815020ce8654

Download Submit
C:\Users\Admin\AppData\Local\Temp\4kWtui9YgkP70Bb.exe

Filesize
18KB

MD5
3d02b1d79394fe13058ab40a0abfb133

SHA1
d6c2b092f1bc79a1b53975bc9b34a5a3c4529ba9

SHA256
41151a38436ceb8acaac016619e3eeb99b671cd13c024d6d8e91fa89b7697900

SHA512
0b312a77f3a422f695e8b7953f03db31941fd24540e7162221dc8fefcc323e16ef7cf3ce6f82dc1f7e8bd78214301b082de518878a803f989ab85485918e00bc

Download Submit
C:\Windows\CTS.exe

Filesize
59KB

MD5
5efd390d5f95c8191f5ac33c4db4b143

SHA1
42d81b118815361daa3007f1a40f1576e9a9e0bc

SHA256
6028434636f349d801465f77af3a1e387a9c5032942ca6cadb6506d0800f2a74

SHA512
720fbe253483dc034307a57a2860c8629a760f883603198d1213f5290b7f236bf0f5f237728ebed50962be83dc7dc4abe61a1e9a55218778495fc6580eb20b3d

Download Submit
C:\Windows\CTS.exe

Filesize
57KB

MD5
9d7b6a662603e4a3f821bed67e1414ed

SHA1
7f26f88357b8de1fcf99cb0ef53385de9cff585b

SHA256
53ac2a14d6d9f7d2b361a24c664c4eb2f062186ecf438c7e93aa79bcb356c4d8

SHA512
98f4f07e7156498da244a2709efaff4b98f27145bfe1a6d42455e650cab22f383bf57122793241df2e7df9484d2b247804993ecd0565bc5ff1e88d10fc6492e1

Download Submit
memory/1044-9-0x0000000000050000-0x0000000000067000-memory.dmp

Filesize
92KB

Download
memory/1044-32-0x0000000000050000-0x0000000000067000-memory.dmp

Filesize
92KB

Download
memory/3096-0-0x0000000000F40000-0x0000000000F57000-memory.dmp

Filesize
92KB

Download
memory/3096-7-0x0000000000F40000-0x0000000000F57000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads