eb525082ad4eb37a11a71d99aadac3a333fee904023ba9cd5d058d5081e7d125

Analysis

max time kernel
150s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
18/03/2024, 17:59

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General

Target

d4276073470b5b434e974f50387d5704.exe
Size

59KB
MD5

d4276073470b5b434e974f50387d5704
SHA1

2fb84857ca69c9c242fc51c51f41883b9133d7aa
SHA256

eb525082ad4eb37a11a71d99aadac3a333fee904023ba9cd5d058d5081e7d125
SHA512

779775bcb26ac21ba7fa29bb9e0374d0e7f410f95c4f09b32e86e1784a680aac6667887b6437f74729f863fb8fcc81c1708e11fb48d5f6179ffe82646c636a0f
SSDEEP

768:XocAX3LKew369lp2z3Sd4baFXLjwP/Tgj93b8NIocVSEFGocAX3LKew369lp2z3l:SKcR4mjD9r823FHKcR4mjD9r823FgJ

Score

7^/10

persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
4668	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/4488-0-0x0000000000620000-0x0000000000637000-memory.dmp	upx
behavioral2/files/0x0007000000023243-6.dat	upx
behavioral2/memory/4488-9-0x0000000000620000-0x0000000000637000-memory.dmp	upx
behavioral2/memory/4668-7-0x00000000005E0000-0x00000000005F7000-memory.dmp	upx
behavioral2/files/0x00020000000226ed-12.dat	upx
behavioral2/files/0x0007000000023242-29.dat	upx
behavioral2/memory/4668-32-0x00000000005E0000-0x00000000005F7000-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"	d4276073470b5b434e974f50387d5704.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	d4276073470b5b434e974f50387d5704.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4488	d4276073470b5b434e974f50387d5704.exe
Token: SeDebugPrivilege	4668	CTS.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4488 wrote to memory of 4668	4488	d4276073470b5b434e974f50387d5704.exe	88
PID 4488 wrote to memory of 4668	4488	d4276073470b5b434e974f50387d5704.exe	88
PID 4488 wrote to memory of 4668	4488	d4276073470b5b434e974f50387d5704.exe	88

C:\Users\Admin\AppData\Local\Temp\d4276073470b5b434e974f50387d5704.exe
"C:\Users\Admin\AppData\Local\Temp\d4276073470b5b434e974f50387d5704.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4488
- 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:4668

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

Filesize
22KB

MD5
e35cfb2f96e2191282b55e7fcfeede5a

SHA1
9dcbd9767e84b6dcd24f3ccd0a702f90cabd60e9

SHA256
02aa5e6254b3ff1c99f7d0c63da0d907e42752a195c839fe15048d9e78d3f6d0

SHA512
80dce6cd7ae780ffab0ba4c02f06b01800d3d8c76b47b8f30e2855c23c270729aca65bf6c6617591e94fe5704443997babf10a07cd03addd31d00315c9c79161

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C:\Users\Admin\AppData\Local\Temp\GZhhvGgGio2Z2oA.exe

Filesize
59KB

MD5
a390d1d54d7746eb64cdc6376e7b7be5

SHA1
edd56eca8f579b8c034537caad8b4790dd298518

SHA256
40d8e6cbc4c4d492803df4c503fe59d8854c50a0c64aaf2474ecd42986e61e9e

SHA512
a7642a9497810b40980f60cb2a023bf035c77fdb55cc37c305f2a62af3959b8c5402198b38f492be9d16226beb1e41453833a9745d3d4cd448560da48bd56bf2

Download Submit
C:\Windows\CTS.exe

Filesize
59KB

MD5
5efd390d5f95c8191f5ac33c4db4b143

SHA1
42d81b118815361daa3007f1a40f1576e9a9e0bc

SHA256
6028434636f349d801465f77af3a1e387a9c5032942ca6cadb6506d0800f2a74

SHA512
720fbe253483dc034307a57a2860c8629a760f883603198d1213f5290b7f236bf0f5f237728ebed50962be83dc7dc4abe61a1e9a55218778495fc6580eb20b3d

Download Submit
memory/4488-0-0x0000000000620000-0x0000000000637000-memory.dmp

Filesize
92KB

Download
memory/4488-9-0x0000000000620000-0x0000000000637000-memory.dmp

Filesize
92KB

Download
memory/4668-7-0x00000000005E0000-0x00000000005F7000-memory.dmp

Filesize
92KB

Download
memory/4668-32-0x00000000005E0000-0x00000000005F7000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads