fc28aab5dfc0c7a912a31923c1fb309f148b0ea8f12e14471b13a6745bf6c22a

Analysis

max time kernel
149s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
13/11/2024, 13:28

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General

Target
SUNNY (1).exe
Size 570KB
Sample241113-qq6lesskdw
SHA256 e754eab189a74ac7cbd51694643beeb94a9f8ae2da1f20967dce58ac6884cfce
MD5 bab905e6355fb5494cc78bf0c07e860e
SHA1 b80b9c2e9b1456a21604d2521fe14735c578288f
SHA512 14cc8d341e2037c375333c619be1dc3ad8eb8cda0f7d80f3ea6e1f15786a62d4d98d436dcb67acd1f65aef8ace00c9eeeedb5770b292ac39276459fdd960c67b
SSDEEP 6144:BFOCkq/GipgCdGyyCPoL/fdRoY66xK5h3ndHleysfifx9L0nrzQ7JkgxKAxMklCw:6MyC2NyYzYFndFem50nQyLfDgP
MD5 SHA1 SHA512 SSDEEP

Score

7^/10

collection discovery spyware stealer

Malware Config

Signatures

Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Reads user/profile data of web browsers 3 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

Credentials from Web Browsers
T1555.003

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	SUNNY (1).exe
Key opened	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	SUNNY (1).exe
Key opened	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	SUNNY (1).exe

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
20	checkip.dyndns.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1028 set thread context of 1596	1028	SUNNY (1).exe	100

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	SUNNY (1).exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	SUNNY (1).exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1028	SUNNY (1).exe
1028	SUNNY (1).exe
1596	SUNNY (1).exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1028	SUNNY (1).exe
Token: SeDebugPrivilege	1596	SUNNY (1).exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1028 wrote to memory of 1596	1028	SUNNY (1).exe	100
PID 1028 wrote to memory of 1596	1028	SUNNY (1).exe	100
PID 1028 wrote to memory of 1596	1028	SUNNY (1).exe	100
PID 1028 wrote to memory of 1596	1028	SUNNY (1).exe	100
PID 1028 wrote to memory of 1596	1028	SUNNY (1).exe	100
PID 1028 wrote to memory of 1596	1028	SUNNY (1).exe	100
PID 1028 wrote to memory of 1596	1028	SUNNY (1).exe	100
PID 1028 wrote to memory of 1596	1028	SUNNY (1).exe	100

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	SUNNY (1).exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	SUNNY (1).exe

C:\Users\Admin\AppData\Local\Temp\SUNNY (1).exe
"C:\Users\Admin\AppData\Local\Temp\SUNNY (1).exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1028
- C:\Users\Admin\AppData\Local\Temp\SUNNY (1).exe
  "C:\Users\Admin\AppData\Local\Temp\SUNNY (1).exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:1596

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Command and Control

Exfiltration

Impact

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Downloads

SUNNY (1).exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\SUNNY (1).exe.log
Size 1KB
SHA256 7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982
MD5 8ec831f3e3a3f77e4a7b9cd32b48384c
SHA1 d83f09fd87c5bd86e045873c231c14836e76a05c
SHA512 26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3
MD5 SHA1 SHA512

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memory/1028-10-0x0000000009EE0000-0x0000000009F7C000-memory.dmp

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memory/1028-15-0x0000000074EC0000-0x0000000075670000-memory.dmp

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memory/1028-3-0x0000000004E30000-0x0000000004EC2000-memory.dmp

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memory/1028-0-0x0000000074ECE000-0x0000000074ECF000-memory.dmp

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memory/1028-5-0x0000000004FF0000-0x0000000004FFA000-memory.dmp

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memory/1028-6-0x0000000005160000-0x0000000005172000-memory.dmp

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memory/1028-7-0x0000000074ECE000-0x0000000074ECF000-memory.dmp

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memory/1028-8-0x0000000074EC0000-0x0000000075670000-memory.dmp

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memory/1028-2-0x0000000005490000-0x0000000005A34000-memory.dmp

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memory/1028-9-0x00000000062A0000-0x0000000006302000-memory.dmp

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memory/1028-4-0x0000000074EC0000-0x0000000075670000-memory.dmp

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memory/1028-1-0x00000000003B0000-0x0000000000444000-memory.dmp

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memory/1596-14-0x0000000074EC0000-0x0000000075670000-memory.dmp

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memory/1596-11-0x0000000000400000-0x000000000041E000-memory.dmp

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memory/1596-16-0x0000000074EC0000-0x0000000075670000-memory.dmp

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memory/1596-17-0x0000000006280000-0x00000000062D0000-memory.dmp

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memory/1596-18-0x00000000065A0000-0x0000000006762000-memory.dmp

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memory/1596-19-0x0000000074EC0000-0x0000000075670000-memory.dmp

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memory/1596-20-0x0000000074EC0000-0x0000000075670000-memory.dmp

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