njrat | b7890705a6e507dbb904709af5606505feb599fc971ecd39bbe39d9517e37ad9

Analysis

max time kernel
139s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
27/01/2024, 17:51

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General

Target

7ae2d24b07648134fabc89eb932cd378.exe
Size

402KB
MD5

7ae2d24b07648134fabc89eb932cd378
SHA1

0a8b4238abf61240db5ca293be78ec09df128dc9
SHA256

b7890705a6e507dbb904709af5606505feb599fc971ecd39bbe39d9517e37ad9
SHA512

08d5871c580987970083506b0bc961a49043a415d6a20ec9df97c09c4721be3cf639715df94d3788bb2ad48f3b43208dfe88210ea82bf43ca027b9e5e2f6e901
SSDEEP

6144:lmaKVBGmE84IMNv55giU0pKiFYHxfx15RvOagakZBxkTN2gmeGcFnVQb/DAYbDgE:iSmLAuEY71fviagATFmebVQDcYcY

Score

10^/10

njrat pdf trojan upx

Malware Config

Extracted

Family

njrat

Version

0.6.4

Botnet

pdf

hhhmach.ddns.net:1177

Mutex

5cd8f17f4086744065eb0992a09e05a2

Attributes

reg_key
5cd8f17f4086744065eb0992a09e05a2
splitter
|'|'|

Signatures

njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\Control Panel\International\Geo\Nation	test.exe

Executes dropped EXE 2 IoCs

pid	Process
3808	test.exe
4928	Trojan.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2888-0-0x0000000000400000-0x00000000004FB000-memory.dmp	upx
behavioral2/memory/2888-1-0x0000000000400000-0x00000000004FB000-memory.dmp	upx
behavioral2/memory/2888-9-0x0000000000400000-0x00000000004FB000-memory.dmp	upx
behavioral2/memory/2888-26-0x0000000000400000-0x00000000004FB000-memory.dmp	upx

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

System Information Discovery
T1082

Program crash 2 IoCs

pid	pid_target	Process	procid_target
2276	2888	WerFault.exe	84
5040	2888	WerFault.exe	84

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2888 wrote to memory of 2308	2888	7ae2d24b07648134fabc89eb932cd378.exe	91
PID 2888 wrote to memory of 2308	2888	7ae2d24b07648134fabc89eb932cd378.exe	91
PID 2888 wrote to memory of 2308	2888	7ae2d24b07648134fabc89eb932cd378.exe	91
PID 2308 wrote to memory of 3808	2308	cmd.exe	92
PID 2308 wrote to memory of 3808	2308	cmd.exe	92
PID 2308 wrote to memory of 3808	2308	cmd.exe	92
PID 3808 wrote to memory of 4928	3808	test.exe	93
PID 3808 wrote to memory of 4928	3808	test.exe	93
PID 3808 wrote to memory of 4928	3808	test.exe	93

C:\Users\Admin\AppData\Local\Temp\7ae2d24b07648134fabc89eb932cd378.exe
"C:\Users\Admin\AppData\Local\Temp\7ae2d24b07648134fabc89eb932cd378.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2888
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2888 -s 248
  2⤵
  - Program crash
  PID:2276
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c test.exe
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2308
- - C:\Users\Admin\AppData\Local\Temp\test.exe
    test.exe
    3⤵
    - Checks computer location settings
    - Executes dropped EXE
    - Suspicious use of WriteProcessMemory
    PID:3808
  - - C:\Users\Admin\AppData\Local\Temp\Trojan.exe
      "C:\Users\Admin\AppData\Local\Temp\Trojan.exe"
      4⤵
      Executes dropped EXE
      PID:4928
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2888 -s 164
  2⤵
  - Program crash
  PID:5040

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 2888 -ip 2888
1⤵
PID:4692

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 2888 -ip 2888
1⤵
PID:1828

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
78KB

MD5
42c5854aa0709d8bf6c28ea82c67b9a5

SHA1
124ea473f0572009de85a4a46f361109f4fae7d6

SHA256
71e1add662041fee9ff0ddf0139154cf006538559af45f34047aac91efb1b8eb

SHA512
c0f4412f2237138b5b66ecc285d7f44bacd67ae23feb0a55561cd4f7850ee6b0fd1b1dac3d2725ed4932aaf155b0fbda284a69b07594789bdb4cbcf0f499d95a

Download Submit
memory/2888-9-0x0000000000400000-0x00000000004FB000-memory.dmp

Filesize
1004KB

Download
memory/2888-1-0x0000000000400000-0x00000000004FB000-memory.dmp

Filesize
1004KB

Download
memory/2888-0-0x0000000000400000-0x00000000004FB000-memory.dmp

Filesize
1004KB

Download
memory/2888-26-0x0000000000400000-0x00000000004FB000-memory.dmp

Filesize
1004KB

Download
memory/3808-6-0x00000000748B0000-0x0000000074E61000-memory.dmp

Filesize
5.7MB

Download
memory/3808-8-0x00000000748B0000-0x0000000074E61000-memory.dmp

Filesize
5.7MB

Download
memory/3808-24-0x00000000748B0000-0x0000000074E61000-memory.dmp

Filesize
5.7MB

Download
memory/3808-7-0x0000000000FF0000-0x0000000001000000-memory.dmp

Filesize
64KB

Download
memory/4928-21-0x00000000748B0000-0x0000000074E61000-memory.dmp

Filesize
5.7MB

Download
memory/4928-22-0x0000000000E90000-0x0000000000EA0000-memory.dmp

Filesize
64KB

Download
memory/4928-23-0x00000000748B0000-0x0000000074E61000-memory.dmp

Filesize
5.7MB

Download
memory/4928-25-0x00000000748B0000-0x0000000074E61000-memory.dmp

Filesize
5.7MB

Download