44caliber | 232c76d65ab1d36fd73d1c8977bbd63a415a98fc2a7a65648003810584d05ecb

General

Target

6fd43f137db0c8472dc0d64be1190bc6.exe
Size

6.0MB
MD5

6fd43f137db0c8472dc0d64be1190bc6
SHA1

d1feb73da26dcc12198088dacc6dd9caf6417a36
SHA256

232c76d65ab1d36fd73d1c8977bbd63a415a98fc2a7a65648003810584d05ecb
SHA512

f2abf2c3996cd78d35a495ba1b8b951067e9f679ffafb994c53e6cdec8a49034313f4158f6596fd8178ada20b569fa671109381a69b3a4e43c447271152b68ef
SSDEEP

98304:tT1v0Sc5LEgwytj2KJHZpz+v2zU0XWbbr5vMjl2iQu9ntFEPZ8YGpnN6p:l18S6ZyKJz+ezUHQtBEp

Score

10^/10

44caliber discovery stealer

Malware Config

Extracted

Family

44caliber

C2

https://discord.com/api/webhooks/871356915303710720/aJQeq8OY3wwqIiXWkN97pUlIjJQhxawbR5zbwOuO96jrzWKG4INekUUjRxLOjy9VbIsi

Signatures

44Caliber
An open source infostealer written in C#.
stealer 44caliber

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
4588	icacls.exe

Looks up external IP address via web service 2 IoCs

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

flow	ioc
14	freegeoip.app
15	freegeoip.app

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

System Information Discovery
T1082

C:\Users\Admin\AppData\Local\Temp\6fd43f137db0c8472dc0d64be1190bc6.exe
"C:\Users\Admin\AppData\Local\Temp\6fd43f137db0c8472dc0d64be1190bc6.exe"
1⤵
PID:5040
- C:\Users\Admin\AppData\Local\Temp\CFG.exe
  "C:\Users\Admin\AppData\Local\Temp\CFG.exe"
  2⤵
  PID:2976
- C:\Users\Admin\AppData\Local\Temp\Fatality Loader.exe
  "C:\Users\Admin\AppData\Local\Temp\Fatality Loader.exe"
  2⤵
  PID:988
- C:\Users\Admin\AppData\Local\Temp\Fatality.win.exe
  "C:\Users\Admin\AppData\Local\Temp\Fatality.win.exe"
  2⤵
  PID:3352
- - C:\Program Files\Java\jre-1.8\bin\javaw.exe
    "C:\Program Files\Java\jre-1.8\bin\javaw.exe" -Dfile.encoding=UTF-8 -classpath "C:\Users\Admin\AppData\Local\Temp\Fatality.win.exe" org.develnext.jphp.ext.javafx.FXLauncher
    3⤵
    PID:2344
  - - C:\Windows\system32\icacls.exe
      C:\Windows\system32\icacls.exe C:\ProgramData\Oracle\Java\.oracle_jre_usage /grant "everyone":(OI)(CI)M
      4⤵
      Modifies file permissions
      PID:4588

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

File and Directory Permissions Modification

1

T1222

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\Oracle\Java\.oracle_jre_usage\3903daac9bc4a3b7.timestamp

Filesize
46B

MD5
7aeaa718384b54d6d9d148a17a070e85

SHA1
83a9256a377717f763cfa15882a39f254663ccff

SHA256
ab09ae196789fcd9a7fc1588978f6964447fcc43fbb408f4c25c482b879c4db6

SHA512
79487dee3142b463879ca6d6d18be4eff8250b60bf9bc9189cbd675cf19b84613935126884e516a084b9d6beb05526b658c329777550da38a4d3b10c7b4058a2

Download Submit
C:\Users\Admin\AppData\Local\44\Process.txt

Filesize
1KB

MD5
1d80eb211f6ded7048faa798d35ee34d

SHA1
22438828c60d1ca4577c908e87b44e9c923535d9

SHA256
29e6de933005cbd41cf8dbf16d11d8c6a8738eb0e0454e8d00b230231e9400d6

SHA512
30ed8345106175ffd30cfcd0e2ee6c3e44bfcc07bc5a0f322544c2e51111d72f877c437d22ef37562545e24b70a966c3cf0b80418173cef33e18c085d777f5c8

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

Filesize
30KB

MD5
bdc1e022f397a9ccedea092a15dc6632

SHA1
f37315810fcfcdde25d5584aa9c30141e74b9299

SHA256
4a547a49e50ff0a32670691ff0f445c726377bd570c61408b89a4bc977750c95

SHA512
b0c2f2eb511347caccfeb36cf41e506bddaf973df18c979b35bf847c0f85b2fb86ed3446d7b2d743bc7ed1f54063320c19b4f26afdfea65c81e10e9c94ac7bbd

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

Filesize
299KB

MD5
c62e8659a538d545f07e0c9f9d4e7473

SHA1
feaa24f501803d8f179732d4920561deb8b4c08f

SHA256
5895294f317b1cf6c4598d293501249917f8177adea6c0f4241517ee2596365e

SHA512
d0c46943279825cebf4de80d50b53fea409d2ecfae9922af97c93f199b62fdf572a278bdee04fe2a13cf7be8a2ac1fa92a081a8b614a0a89348d894600b1d5ed

Download Submit
memory/988-204-0x00007FFC37520000-0x00007FFC37FE1000-memory.dmp

Filesize
10.8MB

Download
memory/988-39-0x000000001BC10000-0x000000001BC20000-memory.dmp

Filesize
64KB

Download
memory/988-22-0x00007FFC37520000-0x00007FFC37FE1000-memory.dmp

Filesize
10.8MB

Download
memory/988-17-0x0000000000FA0000-0x0000000000FF0000-memory.dmp

Filesize
320KB

Download
memory/2344-182-0x000002384AFF0000-0x000002384BFF0000-memory.dmp

Filesize
16.0MB

Download
memory/2344-210-0x000002384B2D0000-0x000002384B2E0000-memory.dmp

Filesize
64KB

Download
memory/2344-75-0x000002384AFF0000-0x000002384BFF0000-memory.dmp

Filesize
16.0MB

Download
memory/2344-217-0x000002384AFF0000-0x000002384BFF0000-memory.dmp

Filesize
16.0MB

Download
memory/2344-216-0x000002384AFF0000-0x000002384BFF0000-memory.dmp

Filesize
16.0MB

Download
memory/2344-176-0x000002384AFD0000-0x000002384AFD1000-memory.dmp

Filesize
4KB

Download
memory/2344-213-0x000002384B300000-0x000002384B310000-memory.dmp

Filesize
64KB

Download
memory/2344-191-0x000002384AFD0000-0x000002384AFD1000-memory.dmp

Filesize
4KB

Download
memory/2344-194-0x000002384AFF0000-0x000002384BFF0000-memory.dmp

Filesize
16.0MB

Download
memory/2344-215-0x000002384B330000-0x000002384B340000-memory.dmp

Filesize
64KB

Download
memory/2344-205-0x000002384B270000-0x000002384B280000-memory.dmp

Filesize
64KB

Download
memory/2344-206-0x000002384B2E0000-0x000002384B2F0000-memory.dmp

Filesize
64KB

Download
memory/2344-208-0x000002384B2A0000-0x000002384B2B0000-memory.dmp

Filesize
64KB

Download
memory/2344-207-0x000002384B290000-0x000002384B2A0000-memory.dmp

Filesize
64KB

Download
memory/2344-209-0x000002384B2C0000-0x000002384B2D0000-memory.dmp

Filesize
64KB

Download
memory/2344-211-0x000002384AFF0000-0x000002384BFF0000-memory.dmp

Filesize
16.0MB

Download
memory/2344-214-0x000002384B310000-0x000002384B320000-memory.dmp

Filesize
64KB

Download
memory/2344-212-0x000002384B2F0000-0x000002384B300000-memory.dmp

Filesize
64KB

Download
memory/3352-69-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/5040-70-0x00007FFC37520000-0x00007FFC37FE1000-memory.dmp

Filesize
10.8MB

Download
memory/5040-1-0x00007FFC37520000-0x00007FFC37FE1000-memory.dmp

Filesize
10.8MB

Download
memory/5040-0-0x0000000000A80000-0x0000000001084000-memory.dmp

Filesize
6.0MB

Download
memory/5040-2-0x0000000003380000-0x0000000003390000-memory.dmp

Filesize
64KB

Download

Analysis

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