squirrelwaffle | a92a643ad0d5cefd4d922720e9a24570c54168143da0da2447edbddd7e1e233f

General

Target
a92a643ad0d5cefd4d922720e9a24570c54168143da0da2447edbddd7e1e233f.dll
Size 391KB
Sample220121-3b1g3sdaer
SHA256 a92a643ad0d5cefd4d922720e9a24570c54168143da0da2447edbddd7e1e233f
MD5 61706b402aea755ea6588f3794637fe9
SHA1 0c3ec40e7d05066caa54bd76ca155ce1d04fdf81
SHA512 3b74f25fff5e8ff244593383f0b073e8f3d3600b5600f887fb5210961c5c4dc4965368b3079e5d5bb30dd3cac1d42acbbf733f8e63a3f9c3c979f7704309dab8
MD5 SHA1 SHA512

Score

10^/10

squirrelwaffle downloader

Malware Config

Extracted

Family

squirrelwaffle

C2

http://msrsac.com/nvaaLwe9
http://u522712.gluweb.nl/n2fshwgq
http://serverplanner.com/LkkAWHLc8
http://bengali.iu.ac.bd/xNM4FTUzqRRk
http://owfix.net/NVNCI3qMl4
http://pcbsi.com.ph/IcLNSd9sO
http://enlacelaboral.com/3cKldxdt

Attributes

blocklist
94.46.179.80

206.189.205.251

88.242.66.45

36.65.102.42

85.75.110.214

93.78.214.187

87.104.3.136

207.244.91.171

49.230.88.160

91.149.252.75

91.149.252.88

92.211.109.152

178.0.250.168

178.203.145.135

88.69.16.230

95.223.77.160

99.234.62.23

2.206.105.223

84.222.8.201

89.183.239.142

93.206.148.216

5.146.132.101

77.7.60.154

45.41.106.122

45.74.72.13

74.58.152.123

88.87.68.197

211.107.25.121

109.70.100.25

185.67.82.114

207.102.138.19

204.101.161.14

193.128.108.251

111.7.100.17

111.7.100.16

74.125.210.62

74.125.210.36

104.244.74.57

185.220.101.145

185.220.101.144

185.220.101.18

185.220.100.246

185.220.101.228

185.220.100.243

185.220.101.229

185.220.101.147

185.220.102.250

94.46.179.80

206.189.205.251

178.255.172.194

84.221.205.40

155.138.242.103

178.212.98.156

85.65.32.191

31.167.184.201

88.242.66.45

36.65.102.42

203.213.127.79

85.75.110.214

93.78.214.187

204.152.81.185

183.171.72.218

168.194.101.130

87.104.3.136

92.211.196.33

197.92.140.125

207.244.91.171

49.230.88.160

196.74.16.153

91.149.252.75

91.149.252.88

92.206.15.202

82.21.114.63

92.211.109.152

178.0.250.168

178.203.145.135

85.210.36.4

199.83.207.72

86.132.134.203

88.69.16.230

99.247.129.88

37.201.195.12

87.140.192.0

88.152.185.188

87.156.177.91

99.229.57.160

95.223.77.160

88.130.54.214

99.234.62.23

2.206.105.223

94.134.179.130

84.221.255.199

84.222.8.201

89.183.239.142

87.158.21.26

93.206.148.216

5.146.132.101

77.7.60.154

95.223.75.85

162.254.173.187

50.99.254.163

45.41.106.122

99.237.13.3

45.74.72.13

108.171.64.202

74.58.152.123

216.209.253.121

88.87.68.197

211.107.25.121

109.70.100.25

185.67.82.114

207.102.138.19

204.101.161.14

193.128.108.251

Signatures

SquirrelWaffle is a simple downloader written in C++.
SquirrelWaffle.
downloader squirrelwaffle

Squirrelwaffle Payload 1 IoCs

resource	yara_rule
behavioral2/memory/3732-119-0x0000000010000000-0x000000001005E000-memory.dmp	squirrelwaffle

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3152 wrote to memory of 3732	3152	regsvr32.exe	68
PID 3152 wrote to memory of 3732	3152	regsvr32.exe	68
PID 3152 wrote to memory of 3732	3152	regsvr32.exe	68

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\a92a643ad0d5cefd4d922720e9a24570c54168143da0da2447edbddd7e1e233f.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:3152
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\a92a643ad0d5cefd4d922720e9a24570c54168143da0da2447edbddd7e1e233f.dll
  2⤵
  - Drops file in Windows directory
  PID:3732

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/3732-118-0x0000000002860000-0x0000000002861000-memory.dmp

Download

memory/3732-119-0x0000000010000000-0x000000001005E000-memory.dmp