fickerstealer | 2452b076ea5c2677bc20fb79b21f52fe5f85168c6115955e51b8a0c73dc72e2a

Analysis

max time kernel
44s
max time network
47s
platform
windows7_x64
resource
win7-20220901-en
resource tags

arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
submitted
23-01-2023 12:12

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General

Target

file.exe
Size

422KB
MD5

5186e144010d4dd2cad53c7160832be3
SHA1

80bc72747314eca557fbfcc0275fbffcb9b749df
SHA256

2452b076ea5c2677bc20fb79b21f52fe5f85168c6115955e51b8a0c73dc72e2a
SHA512

b5c98a734f9b6472b5ed1b6d279713cc4bccc2e33bb0710dce3f4065ba0a949551aa6809443138a81fe21ce3a3b4eeceb95fddf52de237a2713dd844ad55d22e
SSDEEP

1536:Hpe6linkVlM4nAyO0DVPYuVN2y5esqFI+PlFwIrt:H8UWylM4JDVPYuL2y5ffWlFwIh

Score

10^/10

fickerstealer discovery infostealer spyware stealer

Malware Config

Extracted

Family

fickerstealer

wejqwed.link:8080

Signatures

Fickerstealer
Ficker is an infostealer written in Rust and ASM.
infostealer fickerstealer
Downloads MZ/PE file

Executes dropped EXE 2 IoCs

Processes:

RuntimeWorker3.exeRuntimeWorker3.exe

pid	Process
1744	RuntimeWorker3.exe
1280	RuntimeWorker3.exe

Loads dropped DLL 6 IoCs

Processes:

file.exeRuntimeWorker3.exe

pid	Process
1228	file.exe
1228	file.exe
1228	file.exe
1744	RuntimeWorker3.exe
1228	file.exe
1228	file.exe

Reads local data of messenger clients 2 TTPs
Infostealers often target stored data of messaging applications, which can include saved credentials and account information.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
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
T1081
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials in Files
T1081
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Looks up external IP address via web service 1 IoCs

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

Processes:

flow	ioc
7	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

Processes:

RuntimeWorker3.exe

description	pid	Process	procid_target
PID 1744 set thread context of 1280	1744	RuntimeWorker3.exe	30

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

RuntimeWorker3.exe

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	RuntimeWorker3.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	RuntimeWorker3.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

RuntimeWorker3.exe

pid	Process
1280	RuntimeWorker3.exe

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

file.exeRuntimeWorker3.exe

description	pid	Process	procid_target
PID 1228 wrote to memory of 1744	1228	file.exe	29
PID 1228 wrote to memory of 1744	1228	file.exe	29
PID 1228 wrote to memory of 1744	1228	file.exe	29
PID 1228 wrote to memory of 1744	1228	file.exe	29
PID 1744 wrote to memory of 1280	1744	RuntimeWorker3.exe	30
PID 1744 wrote to memory of 1280	1744	RuntimeWorker3.exe	30
PID 1744 wrote to memory of 1280	1744	RuntimeWorker3.exe	30
PID 1744 wrote to memory of 1280	1744	RuntimeWorker3.exe	30
PID 1744 wrote to memory of 1280	1744	RuntimeWorker3.exe	30
PID 1744 wrote to memory of 1280	1744	RuntimeWorker3.exe	30
PID 1744 wrote to memory of 1280	1744	RuntimeWorker3.exe	30
PID 1744 wrote to memory of 1280	1744	RuntimeWorker3.exe	30
PID 1744 wrote to memory of 1280	1744	RuntimeWorker3.exe	30
PID 1744 wrote to memory of 1280	1744	RuntimeWorker3.exe	30
PID 1744 wrote to memory of 1280	1744	RuntimeWorker3.exe	30
PID 1744 wrote to memory of 1280	1744	RuntimeWorker3.exe	30
PID 1744 wrote to memory of 1280	1744	RuntimeWorker3.exe	30
PID 1744 wrote to memory of 1280	1744	RuntimeWorker3.exe	30

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1228
- C:\Users\Admin\AppData\Local\Temp\RuntimeWorker3.exe
  C:\Users\Admin\AppData\Local\Temp\RuntimeWorker3.exe
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:1744
- - C:\Users\Admin\AppData\Local\Temp\RuntimeWorker3.exe
    C:\Users\Admin\AppData\Local\Temp\RuntimeWorker3.exe
    3⤵
    - Executes dropped EXE
    - Checks processor information in registry
    - Suspicious behavior: EnumeratesProcesses
    PID:1280

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\RuntimeWorker3.exe

Filesize
484KB

MD5
858df84cee719d555d9c0e734e85e134

SHA1
5f041464895c49dc9fe0c3e156f0fb0511e6ad77

SHA256
fb623f4ae4dcaa007cac4365aa3ce13526ae32b94f2d9bfe5bf5b6f6a0e376b8

SHA512
4558fa0d39c7a88b9a92bc67256e67507d2b9602512e83dd4bba1209d08ea42b683d5ce1684a90576769db39d923aa0ca0f3deed5d3743fa92b45c0bb588a88b

Download Submit
C:\Users\Admin\AppData\Local\Temp\RuntimeWorker3.exe

Filesize
484KB

MD5
858df84cee719d555d9c0e734e85e134

SHA1
5f041464895c49dc9fe0c3e156f0fb0511e6ad77

SHA256
fb623f4ae4dcaa007cac4365aa3ce13526ae32b94f2d9bfe5bf5b6f6a0e376b8

SHA512
4558fa0d39c7a88b9a92bc67256e67507d2b9602512e83dd4bba1209d08ea42b683d5ce1684a90576769db39d923aa0ca0f3deed5d3743fa92b45c0bb588a88b

Download Submit
C:\Users\Admin\AppData\Local\Temp\RuntimeWorker3.exe

Filesize
484KB

MD5
858df84cee719d555d9c0e734e85e134

SHA1
5f041464895c49dc9fe0c3e156f0fb0511e6ad77

SHA256
fb623f4ae4dcaa007cac4365aa3ce13526ae32b94f2d9bfe5bf5b6f6a0e376b8

SHA512
4558fa0d39c7a88b9a92bc67256e67507d2b9602512e83dd4bba1209d08ea42b683d5ce1684a90576769db39d923aa0ca0f3deed5d3743fa92b45c0bb588a88b

Download Submit
\Users\Admin\AppData\Local\Temp\RuntimeWorker3.exe

Filesize
484KB

MD5
858df84cee719d555d9c0e734e85e134

SHA1
5f041464895c49dc9fe0c3e156f0fb0511e6ad77

SHA256
fb623f4ae4dcaa007cac4365aa3ce13526ae32b94f2d9bfe5bf5b6f6a0e376b8

SHA512
4558fa0d39c7a88b9a92bc67256e67507d2b9602512e83dd4bba1209d08ea42b683d5ce1684a90576769db39d923aa0ca0f3deed5d3743fa92b45c0bb588a88b

Download Submit
\Users\Admin\AppData\Local\Temp\RuntimeWorker3.exe

Filesize
484KB

MD5
858df84cee719d555d9c0e734e85e134

SHA1
5f041464895c49dc9fe0c3e156f0fb0511e6ad77

SHA256
fb623f4ae4dcaa007cac4365aa3ce13526ae32b94f2d9bfe5bf5b6f6a0e376b8

SHA512
4558fa0d39c7a88b9a92bc67256e67507d2b9602512e83dd4bba1209d08ea42b683d5ce1684a90576769db39d923aa0ca0f3deed5d3743fa92b45c0bb588a88b

Download Submit
\Users\Admin\AppData\Local\Temp\RuntimeWorker3.exe

Filesize
484KB

MD5
858df84cee719d555d9c0e734e85e134

SHA1
5f041464895c49dc9fe0c3e156f0fb0511e6ad77

SHA256
fb623f4ae4dcaa007cac4365aa3ce13526ae32b94f2d9bfe5bf5b6f6a0e376b8

SHA512
4558fa0d39c7a88b9a92bc67256e67507d2b9602512e83dd4bba1209d08ea42b683d5ce1684a90576769db39d923aa0ca0f3deed5d3743fa92b45c0bb588a88b

Download Submit
\Users\Admin\AppData\Local\Temp\nso2271.tmp\INetC.dll

Filesize
25KB

MD5
40d7eca32b2f4d29db98715dd45bfac5

SHA1
124df3f617f562e46095776454e1c0c7bb791cc7

SHA256
85e03805f90f72257dd41bfdaa186237218bbb0ec410ad3b6576a88ea11dccb9

SHA512
5fd4f516ce23fb7e705e150d5c1c93fc7133694ba495fb73101674a528883a013a34ab258083aa7ce6072973b067a605158316a4c9159c1b4d765761f91c513d

Download Submit
\Users\Admin\AppData\Local\Temp\nso2271.tmp\INetC.dll

Filesize
25KB

MD5
40d7eca32b2f4d29db98715dd45bfac5

SHA1
124df3f617f562e46095776454e1c0c7bb791cc7

SHA256
85e03805f90f72257dd41bfdaa186237218bbb0ec410ad3b6576a88ea11dccb9

SHA512
5fd4f516ce23fb7e705e150d5c1c93fc7133694ba495fb73101674a528883a013a34ab258083aa7ce6072973b067a605158316a4c9159c1b4d765761f91c513d

Download Submit
\Users\Admin\AppData\Local\Temp\nso2271.tmp\INetC.dll

Filesize
25KB

MD5
40d7eca32b2f4d29db98715dd45bfac5

SHA1
124df3f617f562e46095776454e1c0c7bb791cc7

SHA256
85e03805f90f72257dd41bfdaa186237218bbb0ec410ad3b6576a88ea11dccb9

SHA512
5fd4f516ce23fb7e705e150d5c1c93fc7133694ba495fb73101674a528883a013a34ab258083aa7ce6072973b067a605158316a4c9159c1b4d765761f91c513d

Download Submit
memory/1228-54-0x0000000075A11000-0x0000000075A13000-memory.dmp

Filesize
8KB

Download
memory/1280-67-0x0000000000400000-0x0000000000471000-memory.dmp

Filesize
452KB

Download
memory/1280-63-0x00000000004014C0-mapping.dmp

Download
memory/1280-62-0x0000000000400000-0x0000000000471000-memory.dmp

Filesize
452KB

Download
memory/1280-70-0x0000000000400000-0x0000000000471000-memory.dmp

Filesize
452KB

Download
memory/1280-73-0x0000000000400000-0x0000000000471000-memory.dmp

Filesize
452KB

Download
memory/1744-66-0x000000000054E000-0x0000000000589000-memory.dmp

Filesize
236KB

Download
memory/1744-68-0x00000000002E0000-0x000000000034C000-memory.dmp

Filesize
432KB

Download
memory/1744-58-0x0000000000000000-mapping.dmp

Download