d3fackloader | 3967b38f763b2e58b0679bc0178247b855c68d761187c71c2f1760b6882e473a

General

Target

Zoom_v_2.00.4.exe
Size

98.4MB
MD5

c0230d748e61819d9dfad0da03fe6ec8
SHA1

951154980d3ddd4101b8e09b11669cbedc86f979
SHA256

3967b38f763b2e58b0679bc0178247b855c68d761187c71c2f1760b6882e473a
SHA512

8ec3af6f3ebf50b5d8ae23e61f442837313b90531e395d8de59ef2aadb49d8200866a069292d6c3d1221416d7cf226ae8628119b468fb6b47687d0b2d1ab4afa
SSDEEP

3145728:0GeG/0W1Wp44zcEyJaETaCV7EulyhkYMndp:R1X1WpBDxC77jlvdb

Score

10^/10

d3fackloader discovery downloader loader

Malware Config

Signatures

D3fackloader
D3fackloader is a loader and downloader using Inno Setup.
loader downloader d3fackloader
D3fackloader family
d3fackloader

Executes dropped EXE 1 IoCs

pid	Process
2876	Zoom_v_2.00.4.tmp

Loads dropped DLL 4 IoCs

pid	Process
1500	Zoom_v_2.00.4.exe
2876	Zoom_v_2.00.4.tmp
2876	Zoom_v_2.00.4.tmp
2876	Zoom_v_2.00.4.tmp

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Zoom_v_2.00.4.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Zoom_v_2.00.4.tmp

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1500 wrote to memory of 2876	1500	Zoom_v_2.00.4.exe	28
PID 1500 wrote to memory of 2876	1500	Zoom_v_2.00.4.exe	28
PID 1500 wrote to memory of 2876	1500	Zoom_v_2.00.4.exe	28
PID 1500 wrote to memory of 2876	1500	Zoom_v_2.00.4.exe	28
PID 1500 wrote to memory of 2876	1500	Zoom_v_2.00.4.exe	28
PID 1500 wrote to memory of 2876	1500	Zoom_v_2.00.4.exe	28
PID 1500 wrote to memory of 2876	1500	Zoom_v_2.00.4.exe	28

C:\Users\Admin\AppData\Local\Temp\Zoom_v_2.00.4.exe
"C:\Users\Admin\AppData\Local\Temp\Zoom_v_2.00.4.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1500
- C:\Users\Admin\AppData\Local\Temp\is-3JRRJ.tmp\Zoom_v_2.00.4.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-3JRRJ.tmp\Zoom_v_2.00.4.tmp" /SL5="$3012E,102724573,140800,C:\Users\Admin\AppData\Local\Temp\Zoom_v_2.00.4.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:2876

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\is-3JRRJ.tmp\Zoom_v_2.00.4.tmp

Filesize
1.4MB

MD5
c8af661e4ba65db0dd0d87fb1ea5909c

SHA1
e2b66f5f530a1d521e881546dc87df6f0207900d

SHA256
acea8c07fd60afbd722de9e6074ac7a9e03d4d64a50692f77d30918d0d786992

SHA512
f9a9e06ca6723c655717a538b6b6cd23298b38daa7661896bc5300862975ad89e566fe40125aaa9596583473f00672b7d40d0eb6fe6b70295549d7225611c019

Download Submit
\Users\Admin\AppData\Local\Temp\is-KPUDV.tmp\_isetup\_shfoldr.dll

Filesize
22KB

MD5
92dc6ef532fbb4a5c3201469a5b5eb63

SHA1
3e89ff837147c16b4e41c30d6c796374e0b8e62c

SHA256
9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

SHA512
9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

Download Submit
\Users\Admin\AppData\Local\Temp\is-KPUDV.tmp\idp.dll

Filesize
232KB

MD5
55c310c0319260d798757557ab3bf636

SHA1
0892eb7ed31d8bb20a56c6835990749011a2d8de

SHA256
54e7e0ad32a22b775131a6288f083ed3286a9a436941377fc20f85dd9ad983ed

SHA512
e0082109737097658677d7963cbf28d412dca3fa8f5812c2567e53849336ce45ebae2c0430df74bfe16c0f3eebb46961bc1a10f32ca7947692a900162128ae57

Download Submit
memory/1500-0-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download
memory/1500-2-0x0000000000401000-0x0000000000417000-memory.dmp

Filesize
88KB

Download
memory/1500-19-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download
memory/2876-14-0x0000000000400000-0x0000000000578000-memory.dmp

Filesize
1.5MB

Download
memory/2876-20-0x0000000000400000-0x0000000000578000-memory.dmp

Filesize
1.5MB

Download

Analysis

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