jester | 1a5f9f3c155e3382195e5dda8f67f208d7000ccc55eeda38b3985d3b222cfc45 | Triage

Analysis

max time kernel
120s
max time network
173s
platform
windows10-2004_x64
resource
win10v2004-en-20220112
submitted
09-03-2022 07:47

Sharing

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General

Target

1a5f9f3c155e3382195e5dda8f67f208d7000ccc55eeda38b3985d3b222cfc45.exe
Size

241KB
MD5

a7a5fc0cf0af80549e622bb61dff0b95
SHA1

265b7989300a9b818304335141e9b1962bd1892f
SHA256

1a5f9f3c155e3382195e5dda8f67f208d7000ccc55eeda38b3985d3b222cfc45
SHA512

d67f5cb65007b53f58453269ef5f91f430f241e48aa7ee695b5a56dc9b6a9fba478a8afba8bd8dc2a5f785464c089bf7e43ecd7c400ee7a12278f81a54573f90

Score

10^/10

jester fikuscode stealer

Malware Config

Extracted

Family

jester

Botnet

FikusCode

C2

http://jesterdcuxzbey4xvlwwheoecpltru5be2mzuk4w7a7nrhckdjjhrbyd.onion/report/FikusCode

https://api.anonfiles.com/upload?token=d26d620842507144

Mutex

46378331-3729-449c-9a03-94f385d10a9c

Attributes

license_key
D1F0DE359CBD562CCF9326AEEEA8E64E

Signatures

Jester
Jester is an information stealer malware written in C#.
stealer jester
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

1a5f9f3c155e3382195e5dda8f67f208d7000ccc55eeda38b3985d3b222cfc45.exe

description pid process

Token: SeDebugPrivilege 4044 1a5f9f3c155e3382195e5dda8f67f208d7000ccc55eeda38b3985d3b222cfc45.exe

C:\Users\Admin\AppData\Local\Temp\1a5f9f3c155e3382195e5dda8f67f208d7000ccc55eeda38b3985d3b222cfc45.exe
"C:\Users\Admin\AppData\Local\Temp\1a5f9f3c155e3382195e5dda8f67f208d7000ccc55eeda38b3985d3b222cfc45.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4044

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/4044-130-0x000002201A860000-0x000002201A8A2000-memory.dmp

Filesize
264KB

Download
memory/4044-131-0x00007FFA6A450000-0x00007FFA6AF11000-memory.dmp

Filesize
10.8MB

Download
memory/4044-132-0x000002201AD50000-0x000002201AD52000-memory.dmp

Filesize
8KB

Download