nymaim | c1d6c116d279dacdbe75f95b9d5c73bbeb4bb4a6d340359b8f4022fbcbab3e91

Analysis

max time kernel
60s
max time network
61s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
15/11/2022, 04:49

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General

Target
file.exe
Size 2.1MB
Sample221115-ffnyhsfa28
SHA256 c1d6c116d279dacdbe75f95b9d5c73bbeb4bb4a6d340359b8f4022fbcbab3e91
MD5 f14715e588be0e4843e781a92b91f0f1
SHA1 ca927b901a7c323e09d2ee3527a36e606d51ea06
SHA512 d167df52fc58899e8cc15d4946dc47bbb6a5ff43d15f64538c7d61ec8599f298d0bde09409c2819b153b7c84425959d8b28b818ebee4bb6f584189a14bb0687c
SSDEEP 49152:g2foSkI/weIlp71Yi028l7Im+n4ezNsDDNu6mwrjdrfYRdDYeeEnbO8/SeI4URsA:NfoNI/wecpt8lsln4hEwrjdjYTeEnCco
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

nymaim discovery trojan

Malware Config

Extracted

Family

nymaim

45.139.105.171
85.31.46.167

Signatures

NyMaim
NyMaim is a malware with various capabilities written in C++ and first seen in 2013.
trojan nymaim

Executes dropped EXE 3 IoCs

pid	Process
804	is-DNCRB.tmp
1756	glsearcher80.exe
964	XYbTvQeY7CJj5W.exe

Loads dropped DLL 6 IoCs

pid	Process
1648	file.exe
804	is-DNCRB.tmp
804	is-DNCRB.tmp
804	is-DNCRB.tmp
804	is-DNCRB.tmp
1756	glsearcher80.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Drops file in Program Files directory 12 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\glSearcher\is-0S1NT.tmp	is-DNCRB.tmp
File created	C:\Program Files (x86)\glSearcher\is-VSO07.tmp	is-DNCRB.tmp
File created	C:\Program Files (x86)\glSearcher\is-2GDED.tmp	is-DNCRB.tmp
File opened for modification	C:\Program Files (x86)\glSearcher\unins000.dat	is-DNCRB.tmp
File created	C:\Program Files (x86)\glSearcher\unins000.dat	is-DNCRB.tmp
File created	C:\Program Files (x86)\glSearcher\is-0968F.tmp	is-DNCRB.tmp
File created	C:\Program Files (x86)\glSearcher\is-CFN7I.tmp	is-DNCRB.tmp
File created	C:\Program Files (x86)\glSearcher\is-E0VDQ.tmp	is-DNCRB.tmp
File created	C:\Program Files (x86)\glSearcher\is-FVUCV.tmp	is-DNCRB.tmp
File created	C:\Program Files (x86)\glSearcher\is-BF2H0.tmp	is-DNCRB.tmp
File created	C:\Program Files (x86)\glSearcher\is-DKRFN.tmp	is-DNCRB.tmp
File opened for modification	C:\Program Files (x86)\glSearcher\glsearcher80.exe	is-DNCRB.tmp

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

System Information Discovery
T1082

Kills process with taskkill 1 IoCs

evasion

pid	Process
472	taskkill.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1756	glsearcher80.exe
1756	glsearcher80.exe
1756	glsearcher80.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	472	taskkill.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1648 wrote to memory of 804	1648	file.exe	28
PID 1648 wrote to memory of 804	1648	file.exe	28
PID 1648 wrote to memory of 804	1648	file.exe	28
PID 1648 wrote to memory of 804	1648	file.exe	28
PID 1648 wrote to memory of 804	1648	file.exe	28
PID 1648 wrote to memory of 804	1648	file.exe	28
PID 1648 wrote to memory of 804	1648	file.exe	28
PID 804 wrote to memory of 1756	804	is-DNCRB.tmp	29
PID 804 wrote to memory of 1756	804	is-DNCRB.tmp	29
PID 804 wrote to memory of 1756	804	is-DNCRB.tmp	29
PID 804 wrote to memory of 1756	804	is-DNCRB.tmp	29
PID 1756 wrote to memory of 964	1756	glsearcher80.exe	30
PID 1756 wrote to memory of 964	1756	glsearcher80.exe	30
PID 1756 wrote to memory of 964	1756	glsearcher80.exe	30
PID 1756 wrote to memory of 964	1756	glsearcher80.exe	30
PID 1756 wrote to memory of 268	1756	glsearcher80.exe	33
PID 1756 wrote to memory of 268	1756	glsearcher80.exe	33
PID 1756 wrote to memory of 268	1756	glsearcher80.exe	33
PID 1756 wrote to memory of 268	1756	glsearcher80.exe	33
PID 268 wrote to memory of 472	268	cmd.exe	35
PID 268 wrote to memory of 472	268	cmd.exe	35
PID 268 wrote to memory of 472	268	cmd.exe	35
PID 268 wrote to memory of 472	268	cmd.exe	35

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1648
- C:\Users\Admin\AppData\Local\Temp\is-2SFKJ.tmp\is-DNCRB.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-2SFKJ.tmp\is-DNCRB.tmp" /SL4 $60124 "C:\Users\Admin\AppData\Local\Temp\file.exe" 1953967 210432
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in Program Files directory
  - Suspicious use of WriteProcessMemory
  PID:804
- - C:\Program Files (x86)\glSearcher\glsearcher80.exe
    "C:\Program Files (x86)\glSearcher\glsearcher80.exe"
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:1756
  - - C:\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\XYbTvQeY7CJj5W.exe
      4⤵
      Executes dropped EXE
      PID:964
  - - C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c taskkill /im "glsearcher80.exe" /f & erase "C:\Program Files (x86)\glSearcher\glsearcher80.exe" & exit
      4⤵
      Suspicious use of WriteProcessMemory
      PID:268
    - - C:\Windows\SysWOW64\taskkill.exe
        
        taskkill /im "glsearcher80.exe" /f
        5⤵
        Kills process with taskkill
        Suspicious use of AdjustPrivilegeToken
        
        PID:472

Network

MITRE ATT&CK Enterprise v6

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

glsearcher80.exe

Path C:\Program Files (x86)\glSearcher\glsearcher80.exe
Size 2.7MB
SHA256 84bf89db3f2d27b0a382cb8e28df686ae188949677ed9f0acf5474eec6af9028
MD5 83f36d81f57a5b287c0be8f5dd32b54c
SHA1 dc62d6d75e9c1f2ea54397ee175da332fc8ec73a
SHA512 c5f334ff04cfa7eca2f898312dfa2191efe8de9e847eac1266c0890c20b8e14180cf016f094c6e3e5d2fd23b70045fb91ed274eac191c3bce971e6b7a8efcca6
SSDEEP 49152:kV2bpQvbSEp8t/i6oVSb1+/zSpvBUMMS5dhQLt0UoSuJI7pwCxrV4FG:poOizkbuOxBUMMS5dhQ6UofJI76CxrV3
MD5 SHA1 SHA512 SSDEEP

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glsearcher80.exe

Path C:\Program Files (x86)\glSearcher\glsearcher80.exe
Size 2.7MB
SHA256 84bf89db3f2d27b0a382cb8e28df686ae188949677ed9f0acf5474eec6af9028
MD5 83f36d81f57a5b287c0be8f5dd32b54c
SHA1 dc62d6d75e9c1f2ea54397ee175da332fc8ec73a
SHA512 c5f334ff04cfa7eca2f898312dfa2191efe8de9e847eac1266c0890c20b8e14180cf016f094c6e3e5d2fd23b70045fb91ed274eac191c3bce971e6b7a8efcca6
SSDEEP 49152:kV2bpQvbSEp8t/i6oVSb1+/zSpvBUMMS5dhQLt0UoSuJI7pwCxrV4FG:poOizkbuOxBUMMS5dhQ6UofJI76CxrV3
MD5 SHA1 SHA512 SSDEEP

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is-DNCRB.tmp

Path C:\Users\Admin\AppData\Local\Temp\is-2SFKJ.tmp\is-DNCRB.tmp
Size 811KB
SHA256 7a903a8629a778d9523c59602f8d384897a682c7feea348710100b82a8df6151
MD5 47348a10b98f3bc121c038891516fd85
SHA1 ea7975da0f356286ce7fbb3d5e7fe4acb7f53773
SHA512 48c46bf65fbed103d142964c53fee288a87a73591b4bcdb7199b60fbec7151ab22538de553ad321fb1813e466b928b826b34fb381442c53dfaff02259461639e
SSDEEP 24576:YFRCUn4rP/37YzHXA6QJsoPtIp2GoSZxga:YerP/37YzHXA6QJ3PtIptoS3P
MD5 SHA1 SHA512 SSDEEP

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is-DNCRB.tmp

Path C:\Users\Admin\AppData\Local\Temp\is-2SFKJ.tmp\is-DNCRB.tmp
Size 811KB
SHA256 7a903a8629a778d9523c59602f8d384897a682c7feea348710100b82a8df6151
MD5 47348a10b98f3bc121c038891516fd85
SHA1 ea7975da0f356286ce7fbb3d5e7fe4acb7f53773
SHA512 48c46bf65fbed103d142964c53fee288a87a73591b4bcdb7199b60fbec7151ab22538de553ad321fb1813e466b928b826b34fb381442c53dfaff02259461639e
SSDEEP 24576:YFRCUn4rP/37YzHXA6QJsoPtIp2GoSZxga:YerP/37YzHXA6QJ3PtIptoS3P
MD5 SHA1 SHA512 SSDEEP

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XYbTvQeY7CJj5W.exe

Path C:\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\XYbTvQeY7CJj5W.exe
Size 72KB
SHA256 27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
MD5 3fb36cb0b7172e5298d2992d42984d06
SHA1 439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA512 6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c
SSDEEP 1536:bvUpDLxyxA14o3/M238r6+XfHAgbqmE8MpKdwuasZLUM7DsWlXcdyZgfmi:WDLZKa/MtXfHAgbqmEtxsfmyZgfmi
MD5 SHA1 SHA512 SSDEEP

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glsearcher80.exe

Path \Program Files (x86)\glSearcher\glsearcher80.exe
Size 2.7MB
SHA256 84bf89db3f2d27b0a382cb8e28df686ae188949677ed9f0acf5474eec6af9028
MD5 83f36d81f57a5b287c0be8f5dd32b54c
SHA1 dc62d6d75e9c1f2ea54397ee175da332fc8ec73a
SHA512 c5f334ff04cfa7eca2f898312dfa2191efe8de9e847eac1266c0890c20b8e14180cf016f094c6e3e5d2fd23b70045fb91ed274eac191c3bce971e6b7a8efcca6
SSDEEP 49152:kV2bpQvbSEp8t/i6oVSb1+/zSpvBUMMS5dhQLt0UoSuJI7pwCxrV4FG:poOizkbuOxBUMMS5dhQ6UofJI76CxrV3
MD5 SHA1 SHA512 SSDEEP

Submit Download

is-DNCRB.tmp

Path \Users\Admin\AppData\Local\Temp\is-2SFKJ.tmp\is-DNCRB.tmp
Size 811KB
SHA256 7a903a8629a778d9523c59602f8d384897a682c7feea348710100b82a8df6151
MD5 47348a10b98f3bc121c038891516fd85
SHA1 ea7975da0f356286ce7fbb3d5e7fe4acb7f53773
SHA512 48c46bf65fbed103d142964c53fee288a87a73591b4bcdb7199b60fbec7151ab22538de553ad321fb1813e466b928b826b34fb381442c53dfaff02259461639e
SSDEEP 24576:YFRCUn4rP/37YzHXA6QJsoPtIp2GoSZxga:YerP/37YzHXA6QJ3PtIptoS3P
MD5 SHA1 SHA512 SSDEEP

Submit Download

_iscrypt.dll

Path \Users\Admin\AppData\Local\Temp\is-L9AH8.tmp\_isetup\_iscrypt.dll
Size 2KB
SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
MD5 a69559718ab506675e907fe49deb71e9
SHA1 bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA512 e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
MD5 SHA1 SHA512

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_shfoldr.dll

Path \Users\Admin\AppData\Local\Temp\is-L9AH8.tmp\_isetup\_shfoldr.dll
Size 22KB
SHA256 9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87
MD5 92dc6ef532fbb4a5c3201469a5b5eb63
SHA1 3e89ff837147c16b4e41c30d6c796374e0b8e62c
SHA512 9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3
SSDEEP 384:+Vm08QoKkiWZ76UJuP71W55iWHHoSHigH2euwsHTGHVb+VHHmnH+aHjHqLHxmoq1:2m08QotiCjJuPGw4
MD5 SHA1 SHA512 SSDEEP

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_shfoldr.dll

Path \Users\Admin\AppData\Local\Temp\is-L9AH8.tmp\_isetup\_shfoldr.dll
Size 22KB
SHA256 9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87
MD5 92dc6ef532fbb4a5c3201469a5b5eb63
SHA1 3e89ff837147c16b4e41c30d6c796374e0b8e62c
SHA512 9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3
SSDEEP 384:+Vm08QoKkiWZ76UJuP71W55iWHHoSHigH2euwsHTGHVb+VHHmnH+aHjHqLHxmoq1:2m08QotiCjJuPGw4
MD5 SHA1 SHA512 SSDEEP

Submit Download

XYbTvQeY7CJj5W.exe

Path \Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\XYbTvQeY7CJj5W.exe
Size 72KB
SHA256 27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
MD5 3fb36cb0b7172e5298d2992d42984d06
SHA1 439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA512 6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c
SSDEEP 1536:bvUpDLxyxA14o3/M238r6+XfHAgbqmE8MpKdwuasZLUM7DsWlXcdyZgfmi:WDLZKa/MtXfHAgbqmEtxsfmyZgfmi
MD5 SHA1 SHA512 SSDEEP

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memory/804-81-0x0000000003260000-0x0000000004308000-memory.dmp

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memory/804-69-0x0000000003260000-0x0000000004308000-memory.dmp

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memory/1648-54-0x0000000075811000-0x0000000075813000-memory.dmp

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memory/1648-55-0x0000000000400000-0x000000000043A000-memory.dmp

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memory/1648-87-0x0000000000400000-0x000000000043A000-memory.dmp

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memory/1648-68-0x0000000000400000-0x000000000043A000-memory.dmp

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memory/1756-77-0x0000000010000000-0x000000001001B000-memory.dmp

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memory/1756-82-0x0000000000400000-0x00000000014A8000-memory.dmp

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memory/1756-83-0x0000000000400000-0x00000000014A8000-memory.dmp

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memory/1756-70-0x0000000000400000-0x00000000014A8000-memory.dmp

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memory/1756-86-0x0000000000400000-0x00000000014A8000-memory.dmp

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memory/1756-73-0x0000000000400000-0x00000000014A8000-memory.dmp

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memory/1756-71-0x0000000000400000-0x00000000014A8000-memory.dmp

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