parallax | 3dc57b8c1b003726285ee72400d7d0f841d42d0457febe98eb67215fbc9e2654

Analysis

max time kernel
106s
max time network
146s
platform
windows10_x64
resource
win10v20210408
submitted
06-10-2021 13:13

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General

Target

3dc57b8c1b003726285ee72400d7d0f841d42d0457febe98eb67215fbc9e2654.exe
Size

7.1MB
MD5

4866d86370233b82ff2b0017221c57e2
SHA1

063628db0dab74df343232a6670ee477d29e1219
SHA256

3dc57b8c1b003726285ee72400d7d0f841d42d0457febe98eb67215fbc9e2654
SHA512

14d061b783542303e360f19c754ecdb69f7d172c70d1156c13cac3020c014f30bff83a53e8ab4a282e0a50eedd5f12bee02c7b681f47d70c2c646e9d1a2a4b23

Score

10^/10

parallax rat upx

Malware Config

Signatures

ParallaxRat
ParallaxRat is a multipurpose RAT written in MASM.
rat parallax

ParallaxRat payload 1 IoCs

Detects payload of Parallax Rat, a small portable Rat usually digitally signed with a Sectigo certificate.

resource	yara_rule
behavioral2/memory/2060-197-0x0000000000400000-0x0000000000424000-memory.dmp	parallax_rat

Blocklisted process makes network request 1 IoCs

flow	pid	Process
15	2060	cmd.exe

Executes dropped EXE 2 IoCs

pid	Process
580	3dc57b8c1b003726285ee72400d7d0f841d42d0457febe98eb67215fbc9e2654.tmp
1228	winhlp.exe

UPX packed file 2 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/files/0x000100000001ab35-120.dat	upx
behavioral2/files/0x000100000001ab35-196.dat	upx

Loads dropped DLL 9 IoCs

pid	Process
1228	winhlp.exe
1228	winhlp.exe
1228	winhlp.exe
1228	winhlp.exe
1228	winhlp.exe
1228	winhlp.exe
1228	winhlp.exe
1228	winhlp.exe
1228	winhlp.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\Tasks\winhlp.job	cmd.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1228	winhlp.exe
4024	dllhost.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
4024	dllhost.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 996 wrote to memory of 580	996	3dc57b8c1b003726285ee72400d7d0f841d42d0457febe98eb67215fbc9e2654.exe	68
PID 996 wrote to memory of 580	996	3dc57b8c1b003726285ee72400d7d0f841d42d0457febe98eb67215fbc9e2654.exe	68
PID 996 wrote to memory of 580	996	3dc57b8c1b003726285ee72400d7d0f841d42d0457febe98eb67215fbc9e2654.exe	68
PID 580 wrote to memory of 1228	580	3dc57b8c1b003726285ee72400d7d0f841d42d0457febe98eb67215fbc9e2654.tmp	69
PID 580 wrote to memory of 1228	580	3dc57b8c1b003726285ee72400d7d0f841d42d0457febe98eb67215fbc9e2654.tmp	69
PID 580 wrote to memory of 1228	580	3dc57b8c1b003726285ee72400d7d0f841d42d0457febe98eb67215fbc9e2654.tmp	69
PID 1228 wrote to memory of 4024	1228	winhlp.exe	70
PID 1228 wrote to memory of 4024	1228	winhlp.exe	70
PID 1228 wrote to memory of 4024	1228	winhlp.exe	70
PID 1228 wrote to memory of 4024	1228	winhlp.exe	70
PID 1228 wrote to memory of 4024	1228	winhlp.exe	70
PID 1228 wrote to memory of 4024	1228	winhlp.exe	70
PID 1228 wrote to memory of 4024	1228	winhlp.exe	70
PID 1228 wrote to memory of 4024	1228	winhlp.exe	70
PID 1228 wrote to memory of 4024	1228	winhlp.exe	70
PID 1228 wrote to memory of 4024	1228	winhlp.exe	70
PID 1228 wrote to memory of 4024	1228	winhlp.exe	70
PID 1228 wrote to memory of 4024	1228	winhlp.exe	70
PID 1228 wrote to memory of 4024	1228	winhlp.exe	70
PID 1228 wrote to memory of 4024	1228	winhlp.exe	70
PID 1228 wrote to memory of 4024	1228	winhlp.exe	70
PID 1228 wrote to memory of 4024	1228	winhlp.exe	70
PID 1228 wrote to memory of 4024	1228	winhlp.exe	70
PID 1228 wrote to memory of 4024	1228	winhlp.exe	70
PID 1228 wrote to memory of 4024	1228	winhlp.exe	70
PID 1228 wrote to memory of 4024	1228	winhlp.exe	70
PID 1228 wrote to memory of 4024	1228	winhlp.exe	70
PID 1228 wrote to memory of 4024	1228	winhlp.exe	70
PID 1228 wrote to memory of 4024	1228	winhlp.exe	70
PID 1228 wrote to memory of 4024	1228	winhlp.exe	70
PID 1228 wrote to memory of 4024	1228	winhlp.exe	70
PID 1228 wrote to memory of 4024	1228	winhlp.exe	70
PID 1228 wrote to memory of 4024	1228	winhlp.exe	70
PID 1228 wrote to memory of 4024	1228	winhlp.exe	70
PID 1228 wrote to memory of 4024	1228	winhlp.exe	70
PID 1228 wrote to memory of 4024	1228	winhlp.exe	70
PID 1228 wrote to memory of 4024	1228	winhlp.exe	70
PID 1228 wrote to memory of 4024	1228	winhlp.exe	70
PID 1228 wrote to memory of 4024	1228	winhlp.exe	70
PID 1228 wrote to memory of 4024	1228	winhlp.exe	70
PID 1228 wrote to memory of 4024	1228	winhlp.exe	70
PID 1228 wrote to memory of 4024	1228	winhlp.exe	70
PID 1228 wrote to memory of 4024	1228	winhlp.exe	70
PID 1228 wrote to memory of 4024	1228	winhlp.exe	70
PID 1228 wrote to memory of 4024	1228	winhlp.exe	70
PID 1228 wrote to memory of 4024	1228	winhlp.exe	70
PID 1228 wrote to memory of 4024	1228	winhlp.exe	70
PID 1228 wrote to memory of 4024	1228	winhlp.exe	70
PID 1228 wrote to memory of 4024	1228	winhlp.exe	70
PID 1228 wrote to memory of 4024	1228	winhlp.exe	70
PID 1228 wrote to memory of 4024	1228	winhlp.exe	70
PID 1228 wrote to memory of 4024	1228	winhlp.exe	70
PID 1228 wrote to memory of 4024	1228	winhlp.exe	70
PID 1228 wrote to memory of 4024	1228	winhlp.exe	70
PID 1228 wrote to memory of 4024	1228	winhlp.exe	70
PID 1228 wrote to memory of 4024	1228	winhlp.exe	70
PID 1228 wrote to memory of 4024	1228	winhlp.exe	70
PID 1228 wrote to memory of 4024	1228	winhlp.exe	70
PID 1228 wrote to memory of 4024	1228	winhlp.exe	70
PID 1228 wrote to memory of 4024	1228	winhlp.exe	70
PID 1228 wrote to memory of 4024	1228	winhlp.exe	70
PID 1228 wrote to memory of 4024	1228	winhlp.exe	70
PID 1228 wrote to memory of 4024	1228	winhlp.exe	70
PID 1228 wrote to memory of 4024	1228	winhlp.exe	70

C:\Users\Admin\AppData\Local\Temp\3dc57b8c1b003726285ee72400d7d0f841d42d0457febe98eb67215fbc9e2654.exe
"C:\Users\Admin\AppData\Local\Temp\3dc57b8c1b003726285ee72400d7d0f841d42d0457febe98eb67215fbc9e2654.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:996
- C:\Users\Admin\AppData\Local\Temp\is-JJB99.tmp\3dc57b8c1b003726285ee72400d7d0f841d42d0457febe98eb67215fbc9e2654.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-JJB99.tmp\3dc57b8c1b003726285ee72400d7d0f841d42d0457febe98eb67215fbc9e2654.tmp" /SL5="$5005C,6386844,831488,C:\Users\Admin\AppData\Local\Temp\3dc57b8c1b003726285ee72400d7d0f841d42d0457febe98eb67215fbc9e2654.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of WriteProcessMemory
  PID:580
- - C:\Users\Admin\AppData\Roaming\winhlp.exe
    "C:\Users\Admin\AppData\Roaming\winhlp.exe"
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:1228
  - - C:\Windows\SysWOW64\dllhost.exe
      "C:\Windows\system32\dllhost.exe"
      4⤵
      Suspicious behavior: EnumeratesProcesses
      Suspicious behavior: MapViewOfSection
      PID:4024
    - - C:\Windows\SysWOW64\cmd.exe
        
        "C:\Windows\system32\cmd.exe"
        5⤵
        Blocklisted process makes network request
        Drops file in Windows directory
        
        PID:2060

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/580-118-0x0000000000890000-0x0000000000891000-memory.dmp

Filesize
4KB

Download
memory/996-117-0x0000000000400000-0x00000000004D8000-memory.dmp

Filesize
864KB

Download
memory/1228-124-0x0000000000F41000-0x0000000000F44000-memory.dmp

Filesize
12KB

Download
memory/2060-170-0x00007FF8A17E0000-0x00007FF8A19BB000-memory.dmp

Filesize
1.9MB

Download
memory/2060-171-0x0000000003580000-0x0000000003589000-memory.dmp

Filesize
36KB

Download
memory/2060-176-0x00007FF8A17E1000-0x00007FF8A18EE7A3-memory.dmp

Filesize
1.1MB

Download
memory/2060-197-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/4024-140-0x0000000002C50000-0x0000000002C52000-memory.dmp

Filesize
8KB

Download
memory/4024-157-0x0000000004790000-0x0000000004798000-memory.dmp

Filesize
32KB

Download
memory/4024-158-0x00007FF8A17E0000-0x00007FF8A19BB000-memory.dmp

Filesize
1.9MB

Download
memory/4024-136-0x0000000077C69000-0x0000000077C69005-memory.dmp

Filesize
5B

Download